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	<title>patterns &#8211; BIOENGINEER.ORG</title>
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		<title>Beijing&#8217;s Ozone Season Is Getting Longer, and Its Chemistry Is Flattening</title>
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		<pubDate>Thu, 15 Oct 2026 08:46:15 +0000</pubDate>
				<category><![CDATA[Chemistry]]></category>
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		<category><![CDATA[Beijing]]></category>
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		<category><![CDATA[ozone]]></category>
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					<description><![CDATA[A decade of monitoring data reveals that Beijing's Ozone Season has lengthened by about five days per year even under strict emission controls, as rising low-percentile ozone, delayed exposure windows, and a flattened diurnal cycle reshape the city's ozone pollution regime.]]></description>
		
		
		
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