Insight into the Variability of the Nitrogen Isotope Composition of Vehicular NOx in China

doi:10.1021/acs.est.0c04749

CORC > 烟台海岸带研究所 > 中国科学院烟台海岸带研究所 > 海岸带生物学与生物资源利用重点实验室 > 海岸带生物学与生物资源利用所重点实验室

	Insight into the Variability of the Nitrogen Isotope Composition of Vehicular NOx in China
	Zong, Zheng 1,2; Sun, Zeyu 1,2; Xiao, Leilei 1,2; Tian, Chongguo 1,2; Liu, Junwen 3; Sha, Qinge 3; Zheng, Junyu 3; Li, Jun 4,5; Zhang, Gan 4,5; Fang, Yunting 6
刊名	ENVIRONMENTAL SCIENCE & TECHNOLOGY
	2020-11-17
卷号	54 期号:22 页码:14246-14253
关键词	REGIONAL BACKGROUND SITE EMISSION CONTROL HAZE EVENTS NITRATE DEPOSITION PM2.5 FRACTIONATION VEHICLES EXHAUST AIR
ISSN号	0013-936X
DOI	10.1021/acs.est.0c04749
英文摘要	Nitrogen isotope (delta N-15) monitoring is a potentially powerful tool in tracing atmospheric nitrogen oxides (NOx); however, the isotopic fingerprint of vehicle exhaust remains poorly interpreted. This deficiency limits our understanding of the origin of atmospheric haze pollution, especially in China. In this study, we systemically explored the delta N-15-NOx fingerprints of various vehicle exhausts (n = 137) in China. The delta N-15-NOx values of vehicle exhausts ranged from -18.8 parts per thousand to +6.4 parts per thousand, presenting a significant correlation with NOx concentrations (p < 0.01). The highest delta N-15-NOx values were observed for liquefied petroleum gas vehicles (-0.1 +/- 1.8 parts per thousand), followed by gasoline vehicles (-7.0 +/- 4.8 parts per thousand) and diesel vehicles (-12.7 +/- 3.4 parts per thousand), all of which displayed a rising trend as emissions standards were continuously updated. The delta N-15-NOx values under working conditions followed the trend warm start (-5.9 +/- 5.0 parts per thousand) > driving (-7.3 +/- 5.9 parts per thousand) > cold start (-9.2 +/- 2.7 parts per thousand). By establishing a suitable model for assessing representative delta N-15-NOx values, the delta N-15-NOx values of various vehicles, including different fuel types with different emission standards, were evaluated. A model of delta N-15-NOx associated with motor vehicle data was developed, which estimated the national delta N-15-NOx value of vehicle emissions to be -12.6 +/- 2.2 parts per thousand, but there was considerable variation among different target areas in China.
WOS关键词	REGIONAL BACKGROUND SITE ; EMISSION CONTROL ; HAZE EVENTS ; NITRATE ; DEPOSITION ; PM2.5 ; FRACTIONATION ; VEHICLES ; EXHAUST ; AIR
WOS研究方向	Engineering ; Environmental Sciences & Ecology
语种	英语
WOS记录号	WOS:000592863400012
资助机构	Natural Scientific Foundation of China (NSFC)National Natural Science Foundation of China (NSFC) [41977190, 41907198, 41877349] ; NSFC-Shandong Joint Fund [U1906215] ; Key-Area Research and Development Program of Guangdong Province [2019B110206001]
内容类型	期刊论文
源URL	[http://ir.yic.ac.cn/handle/133337/30501]
专题	烟台海岸带研究所_海岸带生物学与生物资源利用所重点实验室烟台海岸带研究所_中科院海岸带环境过程与生态修复重点实验室
作者单位	1.Chinese Acad Sci, Yantai Inst Coastal Zone Res YIC, CAS Key Lab Coastal Environm Proc & Ecol Remediat, Shandong Key Lab Coastal Environm Proc,YICCAS, Yantai 264003, Shandong, Peoples R China; 2.Chinese Acad Sci, Ctr Ocean Mega Sci, Qingdao 266071, Peoples R China; 3.Jinan Univ, Inst Environm & Climate Res, Guangzhou 511443, Peoples R China; 4.Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Organ Geochem, Guangzhou 510640, Peoples R China; 5.Chinese Acad Sci, Guangzhou Inst Geochem, Guangdong Key Lab Environm Protect & Resources Ut, Guangzhou 510640, Peoples R China; 6.Chinese Acad Sci, Inst Appl Ecol, CAS Key Lab Forest Ecol & Management, Shenyang 110164, Liaoning, Peoples R China
推荐引用方式 GB/T 7714	Zong, Zheng,Sun, Zeyu,Xiao, Leilei,et al. Insight into the Variability of the Nitrogen Isotope Composition of Vehicular NOx in China[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY,2020,54(22):14246-14253.
APA	Zong, Zheng.,Sun, Zeyu.,Xiao, Leilei.,Tian, Chongguo.,Liu, Junwen.,...&Fang, Yunting.(2020).Insight into the Variability of the Nitrogen Isotope Composition of Vehicular NOx in China.ENVIRONMENTAL SCIENCE & TECHNOLOGY,54(22),14246-14253.
MLA	Zong, Zheng,et al."Insight into the Variability of the Nitrogen Isotope Composition of Vehicular NOx in China".ENVIRONMENTAL SCIENCE & TECHNOLOGY 54.22(2020):14246-14253.