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	<id>https://energyeducation.ca/wiki/index.php?action=history&amp;feed=atom&amp;title=Secondary_pollutant</id>
	<title>Secondary pollutant - Revision history</title>
	<link rel="self" type="application/atom+xml" href="https://energyeducation.ca/wiki/index.php?action=history&amp;feed=atom&amp;title=Secondary_pollutant"/>
	<link rel="alternate" type="text/html" href="https://energyeducation.ca/wiki/index.php?title=Secondary_pollutant&amp;action=history"/>
	<updated>2026-05-02T14:21:33Z</updated>
	<subtitle>Revision history for this page on the wiki</subtitle>
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	<entry>
		<id>https://energyeducation.ca/wiki/index.php?title=Secondary_pollutant&amp;diff=10287&amp;oldid=prev</id>
		<title>Jmdonev: 1 revision imported</title>
		<link rel="alternate" type="text/html" href="https://energyeducation.ca/wiki/index.php?title=Secondary_pollutant&amp;diff=10287&amp;oldid=prev"/>
		<updated>2021-09-27T00:03:17Z</updated>

		<summary type="html">&lt;p&gt;1 revision imported&lt;/p&gt;
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				&lt;tr class=&quot;diff-title&quot; lang=&quot;en&quot;&gt;
				&lt;td colspan=&quot;1&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;1&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 00:03, 27 September 2021&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-notice&quot; lang=&quot;en&quot;&gt;&lt;div class=&quot;mw-diff-empty&quot;&gt;(No difference)&lt;/div&gt;
&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;</summary>
		<author><name>Jmdonev</name></author>
	</entry>
	<entry>
		<id>https://energyeducation.ca/wiki/index.php?title=Secondary_pollutant&amp;diff=10286&amp;oldid=prev</id>
		<title>energy&gt;Ethan.boechler at 16:54, 13 September 2021</title>
		<link rel="alternate" type="text/html" href="https://energyeducation.ca/wiki/index.php?title=Secondary_pollutant&amp;diff=10286&amp;oldid=prev"/>
		<updated>2021-09-13T16:54:38Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
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				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 16:54, 13 September 2021&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l1&quot;&gt;Line 1:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 1:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Category: &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Ashley edit&lt;/del&gt;]] [[Category:&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Done 2018-12-10&lt;/del&gt;]]&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Category:&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Done 2019-02-17&lt;/ins&gt;]]  &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Category:&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Translated to French]]&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;[[fr:Polluant secondaire&lt;/ins&gt;]]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[File:shanghai.jpg|300px|thumb|Figure 1. Photochemical smog, consisting of various secondary pollutants, over Shanghai.&amp;lt;ref&amp;gt;Wikimedia Commons [Online], Available: https://upload.wikimedia.org/wikipedia/commons/d/d1/Shanghaiairpollutionsunset.jpg&amp;lt;/ref&amp;gt;]]&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[File:shanghai.jpg|300px|thumb|Figure 1. Photochemical smog, consisting of various secondary pollutants, over Shanghai.&amp;lt;ref&amp;gt;Wikimedia Commons [Online], Available: https://upload.wikimedia.org/wikipedia/commons/d/d1/Shanghaiairpollutionsunset.jpg&amp;lt;/ref&amp;gt;]]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;lt;onlyinclude&amp;gt;&#039;&#039;&#039;Secondary pollutants&#039;&#039;&#039; are [[pollutant]]s which &#039;&#039;form in the [[atmosphere]].&#039;&#039; These pollutants are &#039;&#039;not&#039;&#039; emitted directly from a source (like vehicles or [[power plant]]s). Instead, they form as a result of the pollutants emitted from these sources reacting with molecules in the atmosphere.&amp;lt;/onlyinclude&amp;gt; Pollutants that are emitted into the [[environment]] &#039;&#039;from a source&#039;&#039; are called &#039;&#039;&#039;[[primary pollutant]]s.&#039;&#039;&#039;  &lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;lt;onlyinclude&amp;gt;&#039;&#039;&#039;Secondary pollutants&#039;&#039;&#039; are [[pollutant]]s which &#039;&#039;form in the [[atmosphere]].&#039;&#039; These pollutants are &#039;&#039;not&#039;&#039; emitted directly from a source (like vehicles or [[power plant]]s). Instead, they form as a result of the pollutants emitted from these sources reacting with molecules in the atmosphere &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;to form a new pollutant&lt;/ins&gt;.&amp;lt;/onlyinclude&amp;gt; Pollutants that are emitted into the [[environment]] &#039;&#039;from a source&#039;&#039; are called &#039;&#039;&#039;[[primary pollutant]]s.&#039;&#039;&#039;  &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Secondary pollutants are concerning as they can be formed from many different [[compound]]s. The phenomena of [[photochemical smog]] (seen in high density cities, see Figure 1) is a result of the interactions of primary pollutants with other [[molecule]]s in the [[air]] such as [[molecular oxygen]], [[water]] and [[hydrocarbon]]s. These combine to form yellow clouds that are harmful to humans. [[Photochemical smog]] is made up of various secondary pollutants like [[ozone]], [[peroxyacyl nitrate]]s (PANs), and nitric [[acid]] (seen in Figure 2).&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Secondary pollutants are concerning as they can be formed from many different [[compound]]s. The phenomena of [[photochemical smog]] (seen in high density cities, see Figure 1) is a result of the interactions of primary pollutants with other [[molecule]]s in the [[air]] such as [[molecular oxygen]], [[water]]&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;, &lt;/ins&gt;and [[hydrocarbon]]s. These combine to form yellow clouds that are harmful to humans. [[Photochemical smog]] is made up of various secondary pollutants like [[ozone]], [[peroxyacyl nitrate]]s (PANs), and nitric [[acid]] (seen in Figure 2).&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Different types of secondary pollutants include:&amp;lt;ref&amp;gt;LSC Atmospheric Sciences. (Accessed July 23, 2015). &amp;#039;&amp;#039;Secondary Pollutants&amp;#039;&amp;#039; [Online], Available: http://apollo.lsc.vsc.edu/classes/met130/notes/chapter18/secondary.html&amp;lt;/ref&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Different types of secondary pollutants include:&amp;lt;ref&amp;gt;LSC Atmospheric Sciences. (Accessed July 23, 2015). &amp;#039;&amp;#039;Secondary Pollutants&amp;#039;&amp;#039; [Online], Available: http://apollo.lsc.vsc.edu/classes/met130/notes/chapter18/secondary.html&amp;lt;/ref&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l15&quot;&gt;Line 15:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 17:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;*and more&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;*and more&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;These substances essentially &quot;cook up&quot; in the atmosphere, and are typically found downwind of primary [[emissions]] due to the time it takes to produce them.&amp;lt;Ref&amp;gt;Tracey Holloway. Associate professor, Nelson Institute for Environmental Studies. University of Wisconsin-Madison. See: http://experts.news.wisc.edu/experts/65&amp;lt;/ref&amp;gt; When primary pollutants cannot be dispersed due to [[inversion layer]]s in the atmosphere, [[smog]] is formed over the area where they were produced. This is why smog is so prominent in warm, dense &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;cities&lt;/del&gt;. Secondary pollutants are very sensitive to [[weather]] patterns.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;These substances essentially &quot;cook up&quot; in the atmosphere, and are typically found downwind of primary [[emissions]] due to the time it takes to produce them.&amp;lt;Ref&amp;gt;Tracey Holloway. Associate professor, Nelson Institute for Environmental Studies. University of Wisconsin-Madison. See: http://experts.news.wisc.edu/experts/65&amp;lt;/ref&amp;gt; When primary pollutants cannot be dispersed due to [[inversion layer]]s in the atmosphere, [[smog]] is formed over the area where they were produced. This is why smog is so prominent in &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;cities with &lt;/ins&gt;warm, dense &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;atmospheres&lt;/ins&gt;. Secondary pollutants are very sensitive to [[weather]] patterns.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[File:photochemsmog.png|thumb|800px|center|Figure 2. Photochemical smog formation; sunlight reacts with NO&amp;lt;sub&amp;gt;2&amp;lt;/sub&amp;gt; which then interacts with other molecules in the air to form smog.&amp;lt;ref&amp;gt;Adapted from &amp;#039;&amp;#039;Living In The Environment&amp;#039;&amp;#039;: G. Tyler Miller, Jr. and D. Hackett, &amp;quot;Photochemical and Industrial Smog,&amp;quot; in &amp;#039;&amp;#039;Living in the Environment&amp;#039;&amp;#039;, 2nd ed. USA: Nelson , 2011, ch.20, sec.3, pp.465-471.&amp;lt;/ref&amp;gt;]]&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[File:photochemsmog.png|thumb|800px|center|Figure 2. Photochemical smog formation; sunlight reacts with NO&amp;lt;sub&amp;gt;2&amp;lt;/sub&amp;gt; which then interacts with other molecules in the air to form smog.&amp;lt;ref&amp;gt;Adapted from &amp;#039;&amp;#039;Living In The Environment&amp;#039;&amp;#039;: G. Tyler Miller, Jr. and D. Hackett, &amp;quot;Photochemical and Industrial Smog,&amp;quot; in &amp;#039;&amp;#039;Living in the Environment&amp;#039;&amp;#039;, 2nd ed. USA: Nelson , 2011, ch.20, sec.3, pp.465-471.&amp;lt;/ref&amp;gt;]]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>energy&gt;Ethan.boechler</name></author>
	</entry>
	<entry>
		<id>https://energyeducation.ca/wiki/index.php?title=Secondary_pollutant&amp;diff=8494&amp;oldid=prev</id>
		<title>Jmdonev: 1 revision imported</title>
		<link rel="alternate" type="text/html" href="https://energyeducation.ca/wiki/index.php?title=Secondary_pollutant&amp;diff=8494&amp;oldid=prev"/>
		<updated>2019-01-04T18:14:57Z</updated>

		<summary type="html">&lt;p&gt;1 revision imported&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;en&quot;&gt;
				&lt;td colspan=&quot;1&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;1&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 18:14, 4 January 2019&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-notice&quot; lang=&quot;en&quot;&gt;&lt;div class=&quot;mw-diff-empty&quot;&gt;(No difference)&lt;/div&gt;
&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;</summary>
		<author><name>Jmdonev</name></author>
	</entry>
	<entry>
		<id>https://energyeducation.ca/wiki/index.php?title=Secondary_pollutant&amp;diff=8493&amp;oldid=prev</id>
		<title>2dev&gt;Ashley.Sheardown at 19:19, 19 December 2018</title>
		<link rel="alternate" type="text/html" href="https://energyeducation.ca/wiki/index.php?title=Secondary_pollutant&amp;diff=8493&amp;oldid=prev"/>
		<updated>2018-12-19T19:19:55Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
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				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 19:19, 19 December 2018&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l1&quot;&gt;Line 1:&lt;/td&gt;
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&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Category:Done 2018-12-10&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;]]&lt;/del&gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;[[Category: Ashley edit]] &lt;/ins&gt;[[Category:Done 2018-12-10]]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;[[Category: Rudi grade Ashley edit&lt;/del&gt;]]  &lt;/div&gt;&lt;/td&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-added&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[File:shanghai.jpg|300px|thumb|Figure 1. Photochemical smog, consisting of various secondary pollutants, over Shanghai.&amp;lt;ref&amp;gt;Wikimedia Commons [Online], Available: https://upload.wikimedia.org/wikipedia/commons/d/d1/Shanghaiairpollutionsunset.jpg&amp;lt;/ref&amp;gt;]]&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[File:shanghai.jpg|300px|thumb|Figure 1. Photochemical smog, consisting of various secondary pollutants, over Shanghai.&amp;lt;ref&amp;gt;Wikimedia Commons [Online], Available: https://upload.wikimedia.org/wikipedia/commons/d/d1/Shanghaiairpollutionsunset.jpg&amp;lt;/ref&amp;gt;]]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>2dev&gt;Ashley.Sheardown</name></author>
	</entry>
	<entry>
		<id>https://energyeducation.ca/wiki/index.php?title=Secondary_pollutant&amp;diff=8326&amp;oldid=prev</id>
		<title>Jmdonev at 14:43, 1 November 2018</title>
		<link rel="alternate" type="text/html" href="https://energyeducation.ca/wiki/index.php?title=Secondary_pollutant&amp;diff=8326&amp;oldid=prev"/>
		<updated>2018-11-01T14:43:46Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
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				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 14:43, 1 November 2018&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l1&quot;&gt;Line 1:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 1:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Category: Done &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;2015&lt;/del&gt;-&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;09&lt;/del&gt;-&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;06&lt;/del&gt;]]&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Category:Done &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;2018&lt;/ins&gt;-&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;12&lt;/ins&gt;-&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;10]]&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;[[Category: Rudi grade Ashley edit&lt;/ins&gt;]]  &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[File:shanghai.jpg|300px|thumb|Figure 1. Photochemical smog, consisting of various secondary pollutants, over Shanghai.&amp;lt;ref&amp;gt;Wikimedia Commons [Online], Available: https://upload.wikimedia.org/wikipedia/commons/d/d1/Shanghaiairpollutionsunset.jpg&amp;lt;/ref&amp;gt;]]&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[File:shanghai.jpg|300px|thumb|Figure 1. Photochemical smog, consisting of various secondary pollutants, over Shanghai.&amp;lt;ref&amp;gt;Wikimedia Commons [Online], Available: https://upload.wikimedia.org/wikipedia/commons/d/d1/Shanghaiairpollutionsunset.jpg&amp;lt;/ref&amp;gt;]]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;lt;onlyinclude&amp;gt;&#039;&#039;&#039;Secondary pollutants&#039;&#039;&#039; are &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;any type of &lt;/del&gt;[[pollutant]] &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;that is formed &lt;/del&gt;in the [[atmosphere]]. These pollutants are not emitted directly from a source&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;, such as &lt;/del&gt;vehicles or [[power plant]]s, &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;instead &lt;/del&gt;they form as a result of the pollutants emitted from these.&amp;lt;/onlyinclude&amp;gt; Pollutants that are &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;directly input &lt;/del&gt;into the [[environment]] are called [[primary pollutant]]s.  &lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;lt;onlyinclude&amp;gt;&#039;&#039;&#039;Secondary pollutants&#039;&#039;&#039; are [[pollutant]]&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;s which &#039;&#039;form &lt;/ins&gt;in the [[atmosphere]].&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&#039;&#039; &lt;/ins&gt;These pollutants are &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&#039;&#039;&lt;/ins&gt;not&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&#039;&#039; &lt;/ins&gt;emitted directly from a source &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;(like &lt;/ins&gt;vehicles or [[power plant]]s&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;). Instead&lt;/ins&gt;, they form as a result of the pollutants emitted from these &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;sources reacting with molecules in the atmosphere&lt;/ins&gt;.&amp;lt;/onlyinclude&amp;gt; Pollutants that are &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;emitted &lt;/ins&gt;into the [[environment]] &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&#039;&#039;from a source&#039;&#039; &lt;/ins&gt;are called &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&#039;&#039;&#039;&lt;/ins&gt;[[primary pollutant]]s.&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&#039;&#039;&#039; &lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Secondary pollutants are concerning as they &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;take many forms and &lt;/del&gt;can be formed from many different &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;compounds&lt;/del&gt;. The phenomena of [[photochemical smog]] seen &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;over densely populated &lt;/del&gt;cities is a result of the interactions of primary pollutants with other [[molecule]]s in the [[air]] such as [[molecular oxygen]], [[water]] and [[hydrocarbon]]s&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;, which &lt;/del&gt;combine to form yellow clouds that are harmful to humans. [[Photochemical smog]] is made up of various secondary pollutants like [[ozone]], [[peroxyacyl nitrate]]s (PANs) and nitric [[acid]] (seen in Figure 2).&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Secondary pollutants are concerning as they can be formed from many different &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;[[compound]]s&lt;/ins&gt;. The phenomena of [[photochemical smog]] &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;(&lt;/ins&gt;seen &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;in high density &lt;/ins&gt;cities&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;, see Figure 1) &lt;/ins&gt;is a result of the interactions of primary pollutants with other [[molecule]]s in the [[air]] such as [[molecular oxygen]], [[water]] and [[hydrocarbon]]s&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;. These &lt;/ins&gt;combine to form yellow clouds that are harmful to humans. [[Photochemical smog]] is made up of various secondary pollutants like [[ozone]], [[peroxyacyl nitrate]]s (PANs)&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;, &lt;/ins&gt;and nitric [[acid]] (seen in Figure 2).&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Different types of secondary pollutants include:&amp;lt;ref&amp;gt;LSC Atmospheric Sciences. (Accessed July 23, 2015). &amp;#039;&amp;#039;Secondary Pollutants&amp;#039;&amp;#039; [Online], Available: http://apollo.lsc.vsc.edu/classes/met130/notes/chapter18/secondary.html&amp;lt;/ref&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Different types of secondary pollutants include:&amp;lt;ref&amp;gt;LSC Atmospheric Sciences. (Accessed July 23, 2015). &amp;#039;&amp;#039;Secondary Pollutants&amp;#039;&amp;#039; [Online], Available: http://apollo.lsc.vsc.edu/classes/met130/notes/chapter18/secondary.html&amp;lt;/ref&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l15&quot;&gt;Line 15:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 16:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;*and more&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;*and more&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;These substances essentially &quot;cook up&quot; in the atmosphere, and are typically found downwind of primary [[emissions]] due to the time it takes to produce them.&amp;lt;Ref&amp;gt;Tracey Holloway. Associate professor, Nelson Institute for Environmental Studies. University of Wisconsin-Madison. See: http://experts.news.wisc.edu/experts/65&amp;lt;/ref&amp;gt; When primary pollutants cannot be dispersed due to [[inversion layer]]s in the atmosphere, [[smog]] is formed over the area where they were produced&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;, which &lt;/del&gt;is why smog is so prominent in warm, dense cities. Secondary pollutants are very sensitive to [[weather]] patterns.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;These substances essentially &quot;cook up&quot; in the atmosphere, and are typically found downwind of primary [[emissions]] due to the time it takes to produce them.&amp;lt;Ref&amp;gt;Tracey Holloway. Associate professor, Nelson Institute for Environmental Studies. University of Wisconsin-Madison. See: http://experts.news.wisc.edu/experts/65&amp;lt;/ref&amp;gt; When primary pollutants cannot be dispersed due to [[inversion layer]]s in the atmosphere, [[smog]] is formed over the area where they were produced&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;. This &lt;/ins&gt;is why smog is so prominent in warm, dense cities. Secondary pollutants are very sensitive to [[weather]] patterns.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[File:photochemsmog.png|thumb|800px|center|Figure 2. Photochemical smog formation; sunlight reacts with NO&amp;lt;sub&amp;gt;2&amp;lt;/sub&amp;gt; which then interacts with other molecules in the air to form smog.&amp;lt;ref&amp;gt;Adapted from &amp;#039;&amp;#039;Living In The Environment&amp;#039;&amp;#039;: G. Tyler Miller, Jr. and D. Hackett, &amp;quot;Photochemical and Industrial Smog,&amp;quot; in &amp;#039;&amp;#039;Living in the Environment&amp;#039;&amp;#039;, 2nd ed. USA: Nelson , 2011, ch.20, sec.3, pp.465-471.&amp;lt;/ref&amp;gt;]]&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[File:photochemsmog.png|thumb|800px|center|Figure 2. Photochemical smog formation; sunlight reacts with NO&amp;lt;sub&amp;gt;2&amp;lt;/sub&amp;gt; which then interacts with other molecules in the air to form smog.&amp;lt;ref&amp;gt;Adapted from &amp;#039;&amp;#039;Living In The Environment&amp;#039;&amp;#039;: G. Tyler Miller, Jr. and D. Hackett, &amp;quot;Photochemical and Industrial Smog,&amp;quot; in &amp;#039;&amp;#039;Living in the Environment&amp;#039;&amp;#039;, 2nd ed. USA: Nelson , 2011, ch.20, sec.3, pp.465-471.&amp;lt;/ref&amp;gt;]]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;==For Further Reading==&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;*[[Pollutant]]&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;*[[Pollution]]&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;*[[Primary pollutant]]&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;*[[Pollution vs waste]]&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;*Or explore a [[Special:Random|random page]]&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==References==&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==References==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{{reflist}}&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{{reflist}}&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Category:Uploaded]]&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Category:Uploaded]]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Jmdonev</name></author>
	</entry>
	<entry>
		<id>https://energyeducation.ca/wiki/index.php?title=Secondary_pollutant&amp;diff=3465&amp;oldid=prev</id>
		<title>J.williams: 1 revision imported</title>
		<link rel="alternate" type="text/html" href="https://energyeducation.ca/wiki/index.php?title=Secondary_pollutant&amp;diff=3465&amp;oldid=prev"/>
		<updated>2015-09-18T16:51:11Z</updated>

		<summary type="html">&lt;p&gt;1 revision imported&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;en&quot;&gt;
				&lt;td colspan=&quot;1&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;1&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 16:51, 18 September 2015&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-notice&quot; lang=&quot;en&quot;&gt;&lt;div class=&quot;mw-diff-empty&quot;&gt;(No difference)&lt;/div&gt;
&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;</summary>
		<author><name>J.williams</name></author>
	</entry>
	<entry>
		<id>https://energyeducation.ca/wiki/index.php?title=Secondary_pollutant&amp;diff=3464&amp;oldid=prev</id>
		<title>Kjstenho at 20:22, 3 September 2015</title>
		<link rel="alternate" type="text/html" href="https://energyeducation.ca/wiki/index.php?title=Secondary_pollutant&amp;diff=3464&amp;oldid=prev"/>
		<updated>2015-09-03T20:22:06Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;en&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 20:22, 3 September 2015&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l1&quot;&gt;Line 1:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 1:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Category:Done 2015-&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;07&lt;/del&gt;-&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;24&lt;/del&gt;]]&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Category: Done 2015-&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;09&lt;/ins&gt;-&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;06&lt;/ins&gt;]]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[File:shanghai.jpg|300px|thumb|Figure 1. Photochemical smog, consisting of various secondary pollutants, over Shanghai.&amp;lt;ref&amp;gt;Wikimedia Commons [Online], Available: https://upload.wikimedia.org/wikipedia/commons/d/d1/Shanghaiairpollutionsunset.jpg&amp;lt;/ref&amp;gt;]]&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[File:shanghai.jpg|300px|thumb|Figure 1. Photochemical smog, consisting of various secondary pollutants, over Shanghai.&amp;lt;ref&amp;gt;Wikimedia Commons [Online], Available: https://upload.wikimedia.org/wikipedia/commons/d/d1/Shanghaiairpollutionsunset.jpg&amp;lt;/ref&amp;gt;]]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;lt;onlyinclude&amp;gt;&amp;#039;&amp;#039;&amp;#039;Secondary pollutants&amp;#039;&amp;#039;&amp;#039; are any type of [[pollutant]] that is formed in the [[atmosphere]]. These pollutants are not emitted directly from a source, such as vehicles or [[power plant]]s, instead they form as a result of the pollutants emitted from these.&amp;lt;/onlyinclude&amp;gt; Pollutants that are directly input into the [[environment]] are called [[primary pollutant]]s.  &lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;lt;onlyinclude&amp;gt;&amp;#039;&amp;#039;&amp;#039;Secondary pollutants&amp;#039;&amp;#039;&amp;#039; are any type of [[pollutant]] that is formed in the [[atmosphere]]. These pollutants are not emitted directly from a source, such as vehicles or [[power plant]]s, instead they form as a result of the pollutants emitted from these.&amp;lt;/onlyinclude&amp;gt; Pollutants that are directly input into the [[environment]] are called [[primary pollutant]]s.  &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Secondary pollutants are concerning as they take many forms and can be formed from many different compounds. The phenomena of [[photochemical smog]] seen over densely populated cities is a result of the interactions of primary pollutants with other [[molecule]]s in the air such as [[molecular oxygen]], [[water]] and [[hydrocarbon]]s, which combine to form yellow clouds that are harmful to humans. [[Photochemical smog]] is made up of various secondary pollutants like [[ozone]], [[peroxyacyl nitrate]]s (PANs) and nitric acid (seen in Figure 2).&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Secondary pollutants are concerning as they take many forms and can be formed from many different compounds. The phenomena of [[photochemical smog]] seen over densely populated cities is a result of the interactions of primary pollutants with other [[molecule]]s in the &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;[[&lt;/ins&gt;air&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;]] &lt;/ins&gt;such as [[molecular oxygen]], [[water]] and [[hydrocarbon]]s, which combine to form yellow clouds that are harmful to humans. [[Photochemical smog]] is made up of various secondary pollutants like [[ozone]], [[peroxyacyl nitrate]]s (PANs) and nitric &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;[[&lt;/ins&gt;acid&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;]] &lt;/ins&gt;(seen in Figure 2).&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Different types of secondary pollutants include:&amp;lt;ref&amp;gt;LSC Atmospheric Sciences. (Accessed July 23, 2015). &amp;#039;&amp;#039;Secondary Pollutants&amp;#039;&amp;#039; [Online], Available: http://apollo.lsc.vsc.edu/classes/met130/notes/chapter18/secondary.html&amp;lt;/ref&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Different types of secondary pollutants include:&amp;lt;ref&amp;gt;LSC Atmospheric Sciences. (Accessed July 23, 2015). &amp;#039;&amp;#039;Secondary Pollutants&amp;#039;&amp;#039; [Online], Available: http://apollo.lsc.vsc.edu/classes/met130/notes/chapter18/secondary.html&amp;lt;/ref&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l15&quot;&gt;Line 15:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 15:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;*and more&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;*and more&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;These substances essentially &quot;cook up&quot; in the atmosphere, and are typically found downwind of primary emissions due to the time it takes to produce them.&amp;lt;Ref&amp;gt;Tracey Holloway. Associate professor, Nelson Institute for Environmental Studies. University of Wisconsin-Madison. See: http://experts.news.wisc.edu/experts/65&amp;lt;/ref&amp;gt; When primary pollutants cannot be dispersed due to [[inversion layer]]s in the atmosphere, smog is formed over the area where they were produced, which is why smog is so prominent in warm, dense cities. Secondary pollutants are very sensitive to weather patterns.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;These substances essentially &quot;cook up&quot; in the atmosphere, and are typically found downwind of primary &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;[[&lt;/ins&gt;emissions&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;]] &lt;/ins&gt;due to the time it takes to produce them.&amp;lt;Ref&amp;gt;Tracey Holloway. Associate professor, Nelson Institute for Environmental Studies. University of Wisconsin-Madison. See: http://experts.news.wisc.edu/experts/65&amp;lt;/ref&amp;gt; When primary pollutants cannot be dispersed due to [[inversion layer]]s in the atmosphere, &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;[[&lt;/ins&gt;smog&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;]] &lt;/ins&gt;is formed over the area where they were produced, which is why smog is so prominent in warm, dense cities. Secondary pollutants are very sensitive to &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;[[&lt;/ins&gt;weather&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;]] &lt;/ins&gt;patterns.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[File:photochemsmog.png|thumb|800px|center|Figure 2. Photochemical smog formation; sunlight reacts with NO&amp;lt;sub&amp;gt;2&amp;lt;/sub&amp;gt; which then interacts with other molecules in the air to form smog.&amp;lt;ref&amp;gt;Adapted from &amp;#039;&amp;#039;Living In The Environment&amp;#039;&amp;#039;: G. Tyler Miller, Jr. and D. Hackett, &amp;quot;Photochemical and Industrial Smog,&amp;quot; in &amp;#039;&amp;#039;Living in the Environment&amp;#039;&amp;#039;, 2nd ed. USA: Nelson , 2011, ch.20, sec.3, pp.465-471.&amp;lt;/ref&amp;gt;]]&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[File:photochemsmog.png|thumb|800px|center|Figure 2. Photochemical smog formation; sunlight reacts with NO&amp;lt;sub&amp;gt;2&amp;lt;/sub&amp;gt; which then interacts with other molecules in the air to form smog.&amp;lt;ref&amp;gt;Adapted from &amp;#039;&amp;#039;Living In The Environment&amp;#039;&amp;#039;: G. Tyler Miller, Jr. and D. Hackett, &amp;quot;Photochemical and Industrial Smog,&amp;quot; in &amp;#039;&amp;#039;Living in the Environment&amp;#039;&amp;#039;, 2nd ed. USA: Nelson , 2011, ch.20, sec.3, pp.465-471.&amp;lt;/ref&amp;gt;]]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Kjstenho</name></author>
	</entry>
	<entry>
		<id>https://energyeducation.ca/wiki/index.php?title=Secondary_pollutant&amp;diff=1630&amp;oldid=prev</id>
		<title>J.williams: 1 revision imported</title>
		<link rel="alternate" type="text/html" href="https://energyeducation.ca/wiki/index.php?title=Secondary_pollutant&amp;diff=1630&amp;oldid=prev"/>
		<updated>2015-08-26T21:31:38Z</updated>

		<summary type="html">&lt;p&gt;1 revision imported&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;en&quot;&gt;
				&lt;td colspan=&quot;1&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;1&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 21:31, 26 August 2015&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-notice&quot; lang=&quot;en&quot;&gt;&lt;div class=&quot;mw-diff-empty&quot;&gt;(No difference)&lt;/div&gt;
&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;</summary>
		<author><name>J.williams</name></author>
	</entry>
	<entry>
		<id>https://energyeducation.ca/wiki/index.php?title=Secondary_pollutant&amp;diff=1629&amp;oldid=prev</id>
		<title>J.williams at 16:58, 12 August 2015</title>
		<link rel="alternate" type="text/html" href="https://energyeducation.ca/wiki/index.php?title=Secondary_pollutant&amp;diff=1629&amp;oldid=prev"/>
		<updated>2015-08-12T16:58:58Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;[[Category:Done 2015-07-24]]&lt;br /&gt;
[[File:shanghai.jpg|300px|thumb|Figure 1. Photochemical smog, consisting of various secondary pollutants, over Shanghai.&amp;lt;ref&amp;gt;Wikimedia Commons [Online], Available: https://upload.wikimedia.org/wikipedia/commons/d/d1/Shanghaiairpollutionsunset.jpg&amp;lt;/ref&amp;gt;]]&lt;br /&gt;
&lt;br /&gt;
&amp;lt;onlyinclude&amp;gt;&amp;#039;&amp;#039;&amp;#039;Secondary pollutants&amp;#039;&amp;#039;&amp;#039; are any type of [[pollutant]] that is formed in the [[atmosphere]]. These pollutants are not emitted directly from a source, such as vehicles or [[power plant]]s, instead they form as a result of the pollutants emitted from these.&amp;lt;/onlyinclude&amp;gt; Pollutants that are directly input into the [[environment]] are called [[primary pollutant]]s. &lt;br /&gt;
&lt;br /&gt;
Secondary pollutants are concerning as they take many forms and can be formed from many different compounds. The phenomena of [[photochemical smog]] seen over densely populated cities is a result of the interactions of primary pollutants with other [[molecule]]s in the air such as [[molecular oxygen]], [[water]] and [[hydrocarbon]]s, which combine to form yellow clouds that are harmful to humans. [[Photochemical smog]] is made up of various secondary pollutants like [[ozone]], [[peroxyacyl nitrate]]s (PANs) and nitric acid (seen in Figure 2).&lt;br /&gt;
&lt;br /&gt;
Different types of secondary pollutants include:&amp;lt;ref&amp;gt;LSC Atmospheric Sciences. (Accessed July 23, 2015). &amp;#039;&amp;#039;Secondary Pollutants&amp;#039;&amp;#039; [Online], Available: http://apollo.lsc.vsc.edu/classes/met130/notes/chapter18/secondary.html&amp;lt;/ref&amp;gt;&lt;br /&gt;
&lt;br /&gt;
*[[Ozone]] (O&amp;lt;sub&amp;gt;3&amp;lt;/sub&amp;gt;) &lt;br /&gt;
*Sulfuric acid and nitric acid (component of [[acid rain]])&lt;br /&gt;
*[[Particulate matter]]&lt;br /&gt;
*[[NOx|Nitrogen dioxide]] (NO&amp;lt;sub&amp;gt;2&amp;lt;/sub&amp;gt;)&lt;br /&gt;
*[[Peroxyacyl nitrate]]s (PANs)&lt;br /&gt;
*and more&lt;br /&gt;
&lt;br /&gt;
These substances essentially &amp;quot;cook up&amp;quot; in the atmosphere, and are typically found downwind of primary emissions due to the time it takes to produce them.&amp;lt;Ref&amp;gt;Tracey Holloway. Associate professor, Nelson Institute for Environmental Studies. University of Wisconsin-Madison. See: http://experts.news.wisc.edu/experts/65&amp;lt;/ref&amp;gt; When primary pollutants cannot be dispersed due to [[inversion layer]]s in the atmosphere, smog is formed over the area where they were produced, which is why smog is so prominent in warm, dense cities. Secondary pollutants are very sensitive to weather patterns.&lt;br /&gt;
&lt;br /&gt;
[[File:photochemsmog.png|thumb|800px|center|Figure 2. Photochemical smog formation; sunlight reacts with NO&amp;lt;sub&amp;gt;2&amp;lt;/sub&amp;gt; which then interacts with other molecules in the air to form smog.&amp;lt;ref&amp;gt;Adapted from &amp;#039;&amp;#039;Living In The Environment&amp;#039;&amp;#039;: G. Tyler Miller, Jr. and D. Hackett, &amp;quot;Photochemical and Industrial Smog,&amp;quot; in &amp;#039;&amp;#039;Living in the Environment&amp;#039;&amp;#039;, 2nd ed. USA: Nelson , 2011, ch.20, sec.3, pp.465-471.&amp;lt;/ref&amp;gt;]]&lt;br /&gt;
&lt;br /&gt;
==References==&lt;br /&gt;
{{reflist}}&lt;br /&gt;
[[Category:Uploaded]]&lt;/div&gt;</summary>
		<author><name>J.williams</name></author>
	</entry>
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