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		<id>https://www.designingbuildings.co.uk/w/index.php?action=history&amp;feed=atom&amp;title=Butadiene</id>
		<title>Butadiene - Revision history</title>
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		<updated>2026-05-13T10:58:42Z</updated>
		<subtitle>Revision history for this page on the wiki</subtitle>
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	<entry>
		<id>https://www.designingbuildings.co.uk/w/index.php?title=Butadiene&amp;diff=266221&amp;oldid=prev</id>
		<title>Editor at 08:52, 6 December 2023</title>
		<link rel="alternate" type="text/html" href="https://www.designingbuildings.co.uk/w/index.php?title=Butadiene&amp;diff=266221&amp;oldid=prev"/>
				<updated>2023-12-06T08:52:17Z</updated>
		
		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: white; color:black;&quot;&gt;
			&lt;col class='diff-marker' /&gt;
			&lt;col class='diff-content' /&gt;
			&lt;col class='diff-marker' /&gt;
			&lt;col class='diff-content' /&gt;
		&lt;tr valign='top'&gt;
		&lt;td colspan='2' style=&quot;background-color: white; color:black;&quot;&gt;← Older revision&lt;/td&gt;
		&lt;td colspan='2' style=&quot;background-color: white; color:black;&quot;&gt;Revision as of 08:52, 6 December 2023&lt;/td&gt;
		&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 3:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 3:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;Butadiene, buta means 4 carbons as in butane, and the diene means it contains two double-bonded carbons. It is referred to as 1,3-butadiene but also variations such as 1,2 and 1,4 butadiene, depending on the number of carbon atoms connected and thus stability. It is colourless gas with a odour of petrol, which breaks down quickly in the atmosphere, though is found in urban air as a result of motor vehicle emissions. Natural sources of 1,3-butadiene in the air come from Forest fires.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;Butadiene, buta means 4 carbons as in butane, and the diene means it contains two double-bonded carbons. It is referred to as 1,3-butadiene but also variations such as 1,2 and 1,4 butadiene, depending on the number of carbon atoms connected and thus stability. It is colourless gas with a odour of petrol, which breaks down quickly in the atmosphere, though is found in urban air as a result of motor vehicle emissions. Natural sources of 1,3-butadiene in the air come from Forest fires.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;minus;&lt;/td&gt;&lt;td style=&quot;background: #ffa; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;Butadiene is considered as a volatile organic compound or VOC. Organic compounds are defined in The Volatile Organic Compounds in Paints, Varnishes and Vehicle Refinishing Products Regulations 2012 as 'any compound containing at least the element carbon and one or more of hydrogen, oxygen, sulphur, phosphorus, silicon, nitrogen, or a halogen, with the exception of carbon oxides and inorganic carbonates and bicarbonates', with a volatile organic compound being 'any organic compound having an initial boiling point less than or equal to 250°C measured at a standard pressure of 101.3 kPa'&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;Butadiene is considered as a volatile organic compound or VOC. Organic compounds are defined in &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;[https://www.legislation.gov.uk/uksi/2012/1715/made &lt;/ins&gt;The Volatile Organic Compounds in Paints, Varnishes and Vehicle Refinishing Products Regulations 2012&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;] &lt;/ins&gt;as 'any compound containing at least the element carbon and one or more of hydrogen, oxygen, sulphur, phosphorus, silicon, nitrogen, or a halogen, with the exception of carbon oxides and inorganic carbonates and bicarbonates', with a volatile organic compound being 'any organic compound having an initial boiling point less than or equal to 250°C measured at a standard pressure of 101.3 kPa'&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;= How is butadiene used and what materials contain it? =&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;= How is butadiene used and what materials contain it? =&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Editor</name></author>	</entry>

	<entry>
		<id>https://www.designingbuildings.co.uk/w/index.php?title=Butadiene&amp;diff=266219&amp;oldid=prev</id>
		<title>Editor at 08:49, 6 December 2023</title>
		<link rel="alternate" type="text/html" href="https://www.designingbuildings.co.uk/w/index.php?title=Butadiene&amp;diff=266219&amp;oldid=prev"/>
				<updated>2023-12-06T08:49:50Z</updated>
		
		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: white; color:black;&quot;&gt;
			&lt;col class='diff-marker' /&gt;
			&lt;col class='diff-content' /&gt;
			&lt;col class='diff-marker' /&gt;
			&lt;col class='diff-content' /&gt;
		&lt;tr valign='top'&gt;
		&lt;td colspan='2' style=&quot;background-color: white; color:black;&quot;&gt;← Older revision&lt;/td&gt;
		&lt;td colspan='2' style=&quot;background-color: white; color:black;&quot;&gt;Revision as of 08:49, 6 December 2023&lt;/td&gt;
		&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 2:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 2:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;Butadiene, buta means 4 carbons as in butane, and the diene means it contains two double-bonded carbons. It is referred to as 1,3-butadiene but also variations such as 1,2 and 1,4 butadiene, depending on the number of carbon atoms connected and thus stability. It is colourless gas with a odour of petrol, which breaks down quickly in the atmosphere, though is found in urban air as a result of motor vehicle emissions. Natural sources of 1,3-butadiene in the air come from Forest fires.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;Butadiene, buta means 4 carbons as in butane, and the diene means it contains two double-bonded carbons. It is referred to as 1,3-butadiene but also variations such as 1,2 and 1,4 butadiene, depending on the number of carbon atoms connected and thus stability. It is colourless gas with a odour of petrol, which breaks down quickly in the atmosphere, though is found in urban air as a result of motor vehicle emissions. Natural sources of 1,3-butadiene in the air come from Forest fires.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;color: red; 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;&gt;&amp;#160;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;color: red; font-weight: bold; text-decoration: none;&quot;&gt;Butadiene is considered as a volatile organic compound or VOC. Organic compounds are defined in The Volatile Organic Compounds in Paints, Varnishes and Vehicle Refinishing Products Regulations 2012 as 'any compound containing at least the element carbon and one or more of hydrogen, oxygen, sulphur, phosphorus, silicon, nitrogen, or a halogen, with the exception of carbon oxides and inorganic carbonates and bicarbonates', with a volatile organic compound being 'any organic compound having an initial boiling point less than or equal to 250°C measured at a standard pressure of 101.3 kPa'&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;= How is butadiene used and what materials contain it? =&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;= How is butadiene used and what materials contain it? =&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Editor</name></author>	</entry>

	<entry>
		<id>https://www.designingbuildings.co.uk/w/index.php?title=Butadiene&amp;diff=266211&amp;oldid=prev</id>
		<title>Editor at 07:18, 6 December 2023</title>
		<link rel="alternate" type="text/html" href="https://www.designingbuildings.co.uk/w/index.php?title=Butadiene&amp;diff=266211&amp;oldid=prev"/>
				<updated>2023-12-06T07:18:10Z</updated>
		
		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: white; color:black;&quot;&gt;
			&lt;col class='diff-marker' /&gt;
			&lt;col class='diff-content' /&gt;
			&lt;col class='diff-marker' /&gt;
			&lt;col class='diff-content' /&gt;
		&lt;tr valign='top'&gt;
		&lt;td colspan='2' style=&quot;background-color: white; color:black;&quot;&gt;← Older revision&lt;/td&gt;
		&lt;td colspan='2' style=&quot;background-color: white; color:black;&quot;&gt;Revision as of 07:18, 6 December 2023&lt;/td&gt;
		&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 22:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 22:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;* Infrastructure under Mayor Sadiq Khan.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;* Infrastructure under Mayor Sadiq Khan.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;* Low emission zone for non-road mobile machinery.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;* Low emission zone for non-road mobile machinery.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;minus;&lt;/td&gt;&lt;td style=&quot;background: #ffa; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;* Sustainability in building design and &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;constructionChemical &lt;/del&gt;element.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;* Sustainability in building design and &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;construction&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;* Chemical &lt;/ins&gt;element.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;* T-Charge.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;* T-Charge.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;* Target emission rate TER&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;* Target emission rate TER&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Editor</name></author>	</entry>

	<entry>
		<id>https://www.designingbuildings.co.uk/w/index.php?title=Butadiene&amp;diff=266210&amp;oldid=prev</id>
		<title>Editor at 07:17, 6 December 2023</title>
		<link rel="alternate" type="text/html" href="https://www.designingbuildings.co.uk/w/index.php?title=Butadiene&amp;diff=266210&amp;oldid=prev"/>
				<updated>2023-12-06T07:17:54Z</updated>
		
		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: white; color:black;&quot;&gt;
			&lt;col class='diff-marker' /&gt;
			&lt;col class='diff-content' /&gt;
			&lt;col class='diff-marker' /&gt;
			&lt;col class='diff-content' /&gt;
		&lt;tr valign='top'&gt;
		&lt;td colspan='2' style=&quot;background-color: white; color:black;&quot;&gt;← Older revision&lt;/td&gt;
		&lt;td colspan='2' style=&quot;background-color: white; color:black;&quot;&gt;Revision as of 07:17, 6 December 2023&lt;/td&gt;
		&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&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 colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;color: red; font-weight: bold; text-decoration: none;&quot;&gt;= What is butadiene? =&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;color: red; 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 class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;Butadiene, buta means 4 carbons as in butane, and the diene means it contains two double-bonded carbons. It is referred to as 1,3-butadiene but also variations such as 1,2 and 1,4 butadiene, depending on the number of carbon atoms connected and thus stability. It is colourless gas with a odour of petrol, which breaks down quickly in the atmosphere, though is found in urban air as a result of motor vehicle emissions. Natural sources of 1,3-butadiene in the air come from Forest fires.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;Butadiene, buta means 4 carbons as in butane, and the diene means it contains two double-bonded carbons. It is referred to as 1,3-butadiene but also variations such as 1,2 and 1,4 butadiene, depending on the number of carbon atoms connected and thus stability. It is colourless gas with a odour of petrol, which breaks down quickly in the atmosphere, though is found in urban air as a result of motor vehicle emissions. Natural sources of 1,3-butadiene in the air come from Forest fires.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;minus;&lt;/td&gt;&lt;td style=&quot;background: #ffa; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;Butadiene was isolated from the pyrolysis of amyl alcohol in 1863 by the French chemist E. Caventou and in 1886 identified as the hydrocarbon &lt;/del&gt;butadiene &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;by Henry Edward Armstrong isolated within pyrolysis products of petroleum. It has since been &lt;/del&gt;used &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;in the chemical and plastics industries, because butadiene-based polymers have improved functionality, performance &lt;/del&gt;and &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;safety, aswell as lower costs.&lt;/del&gt;&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;= How is &lt;/ins&gt;butadiene used and &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;what materials contain it? =&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;minus;&lt;/td&gt;&lt;td style=&quot;background: #ffa; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;As such synthetic rubbers that are produced from butadiene for use in shoes, &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;textiiles&lt;/del&gt;, rubber and construction these include styrene-butadiene rubber, poly-butadiene rubber, styrene-butadiene latex, Acrylonitrile Butadiene Styrene (ABS), Styrene-Butadiene-Styrene (SBS), Styrene butadiene (SBR), chloroprene rubber and nitrile rubber. It is is also used in the refinement of petroleum, secondary lead smelting, water treatment, agricultural fungicide, and in the production of the raw material for nylon. In 2020 global production was estimated at 14.2 million tons, mainly for the polymer industry.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;Butadiene was isolated from the pyrolysis of amyl alcohol in 1863 by the French chemist E. Caventou and in 1886 identified as the hydrocarbon butadiene by Henry Edward Armstrong isolated within pyrolysis products of petroleum. It has since been used in the chemical and plastics industries, because butadiene-based polymers have improved functionality, performance and safety, as well as lower costs. &lt;/ins&gt;As such synthetic rubbers that are produced from butadiene for use in shoes, &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;textiles&lt;/ins&gt;, rubber and construction these include styrene-butadiene rubber, poly-butadiene rubber, styrene-butadiene latex, Acrylonitrile Butadiene Styrene (ABS), Styrene-Butadiene-Styrene (SBS), Styrene butadiene (SBR), chloroprene rubber and nitrile rubber. It is is also used in the refinement of petroleum, secondary lead smelting, water treatment, agricultural fungicide, and in the production of the raw material for nylon. In 2020 global production was estimated at 14.2 million tons, mainly for the polymer industry.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;minus;&lt;/td&gt;&lt;td style=&quot;background: #ffa; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;Exposure can also occur from polluted air and water near chemical, plastic or rubber facilities; cigarette smoke; and ingestion of foods that are contaminated from plastic or rubber containers, but most likely automobile exhaust. Although 1,3-butadiene breaks down quickly in the atmosphere motor vehicle exhausts are a constant low levels source in ambient urban and suburban areas.&lt;/del&gt;&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;= How is &lt;/ins&gt;benzene &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;harmful &lt;/ins&gt;and &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;how is it controlled? =&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;minus;&lt;/td&gt;&lt;td style=&quot;background: #ffa; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&amp;#160;&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;minus;&lt;/td&gt;&lt;td style=&quot;background: #ffa; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;Levels of emissions from vehicles and pollutants such as &lt;/del&gt;benzene and &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;1,3-butadiene have reduced over recent years as a direct result of air quality control schemes such as: Clean Air Zones in Birmingham, Bradford, Bristol, Portsmouth, Sheffield, and Tyneside (Newcastle and Gateshead). Low Emission Zones (LEZ) such as found in Glasgow aswell as Ultra Low Emissions Zones (ULEZ) as introduced to parts of London on 2019.&lt;/del&gt;&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;Health effects caused by exposure to 1,3-butadiene are acute or chronic. Low acute exposure causes irritation to the eyes, throat, nose, and lungs and frostbite may also occur with skin exposure. Higher exposure can cause damage to the central nervous system, blurred vision, vertigo, tiredness, decreased blood pressure, headache, nausea, decreased pulse rate, and fainting. Chronic effects are more controversial, with several studies showing an increases in cardiovascular diseases and cancer, though strong causal relationships have only been shown in animal tests it is classified as a known human carcinogen.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;Health effects caused by exposure to 1,3-butadiene are acute or chronic. Low acute exposure causes irritation to the eyes, throat, nose, and lungs and frostbite may also occur with skin exposure. Higher exposure can cause damage to the central nervous system, blurred vision, vertigo, tiredness, decreased blood pressure, headache, nausea, decreased pulse rate, and fainting. Chronic effects are more controversial, with several studies showing an increases in cardiovascular diseases and cancer, though strong causal relationships have only been shown in animal tests it is classified as a known human carcinogen.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;color: red; 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;&gt;&amp;#160;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;color: red; font-weight: bold; text-decoration: none;&quot;&gt;Exposure can also occur from polluted air and water near chemical, plastic or rubber facilities; cigarette smoke; and ingestion of foods that are contaminated from plastic or rubber containers, but most likely auto mobile exhaust. Although 1,3-butadiene breaks down quickly in the atmosphere motor vehicle exhausts are a constant low levels source in ambient urban and suburban areas. Levels of emissions from vehicles and pollutants such as benzene and 1,3-butadiene have reduced over recent years as a direct result of air quality control schemes such as: Clean Air Zones in Birmingham, Bradford, Bristol, Portsmouth, Sheffield, and Tyneside (Newcastle and Gateshead). Low Emission Zones (LEZ) such as found in Glasgow as well as Ultra Low Emissions Zones (ULEZ) as introduced to parts of London on 2019.&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;= Related articles on Designing Buildings =&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;= Related articles on Designing Buildings =&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
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&lt;/table&gt;</summary>
		<author><name>Editor</name></author>	</entry>

	<entry>
		<id>https://www.designingbuildings.co.uk/w/index.php?title=Butadiene&amp;diff=266179&amp;oldid=prev</id>
		<title>Editor at 13:45, 5 December 2023</title>
		<link rel="alternate" type="text/html" href="https://www.designingbuildings.co.uk/w/index.php?title=Butadiene&amp;diff=266179&amp;oldid=prev"/>
				<updated>2023-12-05T13:45:40Z</updated>
		
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		&lt;td colspan='2' style=&quot;background-color: white; color:black;&quot;&gt;← Older revision&lt;/td&gt;
		&lt;td colspan='2' style=&quot;background-color: white; color:black;&quot;&gt;Revision as of 13:45, 5 December 2023&lt;/td&gt;
		&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&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='diff-marker'&gt;&amp;minus;&lt;/td&gt;&lt;td style=&quot;background: #ffa; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;Butadiene, buta means 4 carbons as in butane, and the diene means it contains two double-bonded carbons. It is referred to as 1,3- butadiene but also variations such as 1,2 and 1,4 butadiene, depending on the number of carbon atoms connected and thus stability. It is &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;colorless &lt;/del&gt;gas with a &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;odor &lt;/del&gt;of petrol&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;, and natural component of crude oil&lt;/del&gt;, which &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;can increase &lt;/del&gt;the &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;risk of leukemia aswell &lt;/del&gt;as &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;various other blood disorders&lt;/del&gt;.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;Butadiene, buta means 4 carbons as in butane, and the diene means it contains two double-bonded carbons. It is referred to as 1,3-butadiene but also variations such as 1,2 and 1,4 butadiene, depending on the number of carbon atoms connected and thus stability. It is &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;colourless &lt;/ins&gt;gas with a &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;odour &lt;/ins&gt;of petrol, which &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;breaks down quickly in &lt;/ins&gt;the &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;atmosphere, though is found in urban air &lt;/ins&gt;as &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;a result of motor vehicle emissions. Natural sources of 1,3-butadiene in the air come from Forest fires&lt;/ins&gt;.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;minus;&lt;/td&gt;&lt;td style=&quot;background: #ffa; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;It &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;is &lt;/del&gt;used &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;as a solvent &lt;/del&gt;in the chemical and &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;pharmaceutical &lt;/del&gt;industries, &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;can be found in adhesives, glues, nylon, plastics, paintstrippers, resins, synthetic fibres, in some rubber types, lubricants, dyes, detergents, drugs&lt;/del&gt;, and &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;pesticides. It is also found in tobacco smoke&lt;/del&gt;, &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;petrol fumes, vehicle exhaust fumes and industrial emissions. Relatively minor sources of naturally occuring bezene can be found in volcanic eruptions and &lt;/del&gt;as &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;a result of forest fires&lt;/del&gt;.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;Butadiene was isolated from the pyrolysis of amyl alcohol in 1863 by the French chemist E. Caventou and in 1886 identified as the hydrocarbon butadiene by Henry Edward Armstrong isolated within pyrolysis products of petroleum. &lt;/ins&gt;It &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;has since been &lt;/ins&gt;used in the chemical and &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;plastics &lt;/ins&gt;industries, &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;because butadiene-based polymers have improved functionality&lt;/ins&gt;, &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;performance &lt;/ins&gt;and &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;safety&lt;/ins&gt;, &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;aswell &lt;/ins&gt;as &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;lower costs&lt;/ins&gt;.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;minus;&lt;/td&gt;&lt;td style=&quot;background: #ffa; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;In 2023 it is estimated &lt;/del&gt;that &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;62.19 million metric tonnes of benzene will &lt;/del&gt;produced &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;globally, with predictions &lt;/del&gt;for &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;this to increase&lt;/del&gt;, in the &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;US it continues to fall &lt;/del&gt;in the &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;top 20 chemicals by &lt;/del&gt;production &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;volume&lt;/del&gt;. In &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;the European Economic Area the substance is registered under the REACH Regulation with manufacture and / or import standing &lt;/del&gt;at &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;around at 100&lt;/del&gt;,&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;000 tonnes per annum&lt;/del&gt;.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;As such synthetic rubbers &lt;/ins&gt;that &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;are &lt;/ins&gt;produced &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;from butadiene &lt;/ins&gt;for &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;use in shoes&lt;/ins&gt;, &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;textiiles, rubber and construction these include styrene-butadiene rubber, poly-butadiene rubber, styrene-butadiene latex, Acrylonitrile Butadiene Styrene (ABS), Styrene-Butadiene-Styrene (SBS), Styrene butadiene (SBR), chloroprene rubber and nitrile rubber. It is is also used &lt;/ins&gt;in the &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;refinement of petroleum, secondary lead smelting, water treatment, agricultural fungicide, and &lt;/ins&gt;in the production &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;of the raw material for nylon&lt;/ins&gt;. In &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;2020 global production was estimated &lt;/ins&gt;at &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;14.2 million tons&lt;/ins&gt;, &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;mainly for the polymer industry&lt;/ins&gt;.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;minus;&lt;/td&gt;&lt;td style=&quot;background: #ffa; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;The main source &lt;/del&gt;of &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;benzene &lt;/del&gt;in the &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;air comes from &lt;/del&gt;motor vehicle &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;exaust fumes, especially &lt;/del&gt;in urban areas, &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;though these &lt;/del&gt;have &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;been &lt;/del&gt;reduced over recent years&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;. The reduction in benzene emissions are &lt;/del&gt;a direct result of air quality control &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;scheme suchn &lt;/del&gt;as: Clean Air Zones in Birmingham, Bradford, Bristol, Portsmouth, Sheffield, and Tyneside (Newcastle and Gateshead). Low Emission Zones (LEZ) such as found in Glasgow aswell as Ultra Low Emissions Zones (ULEZ) as introduced to parts of London on 2019.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;Exposure can also occur from polluted air and water near chemical, plastic or rubber facilities; cigarette smoke; and ingestion &lt;/ins&gt;of &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;foods that are contaminated from plastic or rubber containers, but most likely automobile exhaust. Although 1,3-butadiene breaks down quickly &lt;/ins&gt;in the &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;atmosphere &lt;/ins&gt;motor vehicle &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;exhausts are a constant low levels source &lt;/ins&gt;in &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;ambient &lt;/ins&gt;urban &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;and suburban &lt;/ins&gt;areas&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;.&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&amp;#160;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;Levels of emissions from vehicles and pollutants such as benzene and 1&lt;/ins&gt;,&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;3-butadiene &lt;/ins&gt;have reduced over recent years &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;as &lt;/ins&gt;a direct result of air quality control &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;schemes such &lt;/ins&gt;as: Clean Air Zones in Birmingham, Bradford, Bristol, Portsmouth, Sheffield, and Tyneside (Newcastle and Gateshead). Low Emission Zones (LEZ) such as found in Glasgow aswell as Ultra Low Emissions Zones (ULEZ) as introduced to parts of London on 2019.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&amp;#160;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;Health effects caused by exposure to 1,3-butadiene are acute or chronic. Low acute exposure causes irritation to the eyes, throat, nose, and lungs and frostbite may also occur with skin exposure. Higher exposure can cause damage to the central nervous system, blurred vision, vertigo, tiredness, decreased blood pressure, headache, nausea, decreased pulse rate, and fainting. Chronic effects are more controversial, with several studies showing an increases in cardiovascular diseases and cancer, though strong causal relationships have only been shown in animal tests it is classified as a known human carcinogen.&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&amp;#160;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;= Related articles on Designing Buildings =&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&amp;#160;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;* Building related chemical reactions.&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;* BSRIA response to clean air strategy.&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;* COSHH.&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;* Deleterious materials in construction.&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;* Environmental legislation for building design and construction.&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;* Infrastructure under Mayor Sadiq Khan.&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;* Low emission zone for non-road mobile machinery.&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;* Sustainability in building design and constructionChemical element.&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;* T-Charge.&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;* Target emission rate TER&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;* Types of materials&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;* Types of plastic.&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;* Types of plastic in construction.&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&amp;#160;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;[[Category:DCN_Definition]] [[Category:DCN_Product_Knowledge]] [[Category:Definitions]] [[Category:Health_and_safety_/_CDM]] [[Category:Regulations]] [[Category:Sustainability]]&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Editor</name></author>	</entry>

	<entry>
		<id>https://www.designingbuildings.co.uk/w/index.php?title=Butadiene&amp;diff=266178&amp;oldid=prev</id>
		<title>Editor: Created page with &quot;Butadiene, buta means 4 carbons as in butane, and the diene means it contains two double-bonded carbons. It is referred to as 1,3- butadiene but also variations such as 1,2 and 1...&quot;</title>
		<link rel="alternate" type="text/html" href="https://www.designingbuildings.co.uk/w/index.php?title=Butadiene&amp;diff=266178&amp;oldid=prev"/>
				<updated>2023-12-05T13:07:17Z</updated>
		
		<summary type="html">&lt;p&gt;Created page with &amp;quot;Butadiene, buta means 4 carbons as in butane, and the diene means it contains two double-bonded carbons. It is referred to as 1,3- butadiene but also variations such as 1,2 and 1...&amp;quot;&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;Butadiene, buta means 4 carbons as in butane, and the diene means it contains two double-bonded carbons. It is referred to as 1,3- butadiene but also variations such as 1,2 and 1,4 butadiene, depending on the number of carbon atoms connected and thus stability. It is colorless gas with a odor of petrol, and natural component of crude oil, which can increase the risk of leukemia aswell as various other blood disorders.&lt;br /&gt;
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It is used as a solvent in the chemical and pharmaceutical industries, can be found in adhesives, glues, nylon, plastics, paintstrippers, resins, synthetic fibres, in some rubber types, lubricants, dyes, detergents, drugs, and pesticides. It is also found in tobacco smoke, petrol fumes, vehicle exhaust fumes and industrial emissions. Relatively minor sources of naturally occuring bezene can be found in volcanic eruptions and as a result of forest fires.&lt;br /&gt;
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In 2023 it is estimated that 62.19 million metric tonnes of benzene will produced globally, with predictions for this to increase, in the US it continues to fall in the top 20 chemicals by production volume. In the European Economic Area the substance is registered under the REACH Regulation with manufacture and / or import standing at around at 100,000 tonnes per annum.&lt;br /&gt;
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The main source of benzene in the air comes from motor vehicle exaust fumes, especially in urban areas, though these have been reduced over recent years. The reduction in benzene emissions are a direct result of air quality control scheme suchn as: Clean Air Zones in Birmingham, Bradford, Bristol, Portsmouth, Sheffield, and Tyneside (Newcastle and Gateshead). Low Emission Zones (LEZ) such as found in Glasgow aswell as Ultra Low Emissions Zones (ULEZ) as introduced to parts of London on 2019.&lt;/div&gt;</summary>
		<author><name>Editor</name></author>	</entry>

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