轻型汽油车VOCs排放特征及其大气反应活性

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Abstract The VOCs samples emitted from light-duty gasoline vehicles ranging from China II to China IV was collected by portableemission measurement system (PEMS). Alkanes, alkenes and aromatics in the exhaust were analyzed using GC-MS and GC-FID. Results demonstrated that the emission reductions of VOCs from light-duty gasoline vehicles had been achieved as the control technology become more rigorous, China II, China III and China IV vehicles were 49.62, 21.65 and 6.72mg/km, respectively. Aromatics were the dominant VOCs with weight percentages of 47.43%~60.52%. The ozone formation potentials and SOA formation potential for different emission standards were 24.64 ~ 234.14mg/km and 13.24 ~125.32mg/km. Driving speeds also influenced the VOCs emissions from the tested China III vehicles, the VOCs emission factors, ozone formation potential (OFP) and SOA formation potential from light-duty gasoline vehicles were dropped with the increase of the speed.

Key words： light-duty gasoline vehicles ozone formation potential SOA

Received: 24 February 2016

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	Articles by authors
	YAO Sen
	WEI Wei
	CHENG Shui-yuan
	WANG Gang
	ZHANG Hang-yu
	CHEN Guo-lei

Cite this article:

YAO Sen,WEI Wei,CHENG Shui-yuan等. Emission characteristics and chemical reactivity of volatile organic compounds from light-duty gasoline vehicles[J]. CHINA ENVIRONMENTAL SCIENCECE, 2016, 36(10): 2923-2929.

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http://www.zghjkx.com.cn/EN/ OR http://www.zghjkx.com.cn/EN/Y2016/V36/I10/2923

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