The abundance and inter-relationship of atmospheric peroxyacetyl nitrate (PAN), peroxypropionyl nitrate (PPN), O-3, and NOy during the wintertime in Beijing, China

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 大气污染控制中心

	The abundance and inter-relationship of atmospheric peroxyacetyl nitrate (PAN), peroxypropionyl nitrate (PPN), O-3, and NOy during the wintertime in Beijing, China
	Zhang, Gen; Xia, Lingjun; Zang, Kunpeng; Xu, Wanyun; Zhang, Fang; Liang, Linlin; Yao, Bo; Lin, Weili; Mu, Yujing
刊名	SCIENCE OF THE TOTAL ENVIRONMENT
	2020-05-20
卷号	718 页码:1-7
关键词	Peroxyacetyl nitrate Peroxypmpionyl nitrate NOy Ozone Regional transport Photochemical pollution
ISSN号	0048-9697
英文摘要	Although atmospheric peroxyacetyl nitrate (PAN) and O-3 have been extensively measured in Beijing during the summertime, the abundances of PAN, peroxypropionyl nitrate (PPN) and the total odd-reactive nitrogen budget (NOy) and their inter-relationship have been studied comparatively less in the winter. Here we measured atmospheric PAN, PPN, O-3, NOx, and NOy in Beijing from Nov. 2012 to Jan. 2013. Compared with our previous results in the summertime, much lower levels were observed in the winter, with the mean and maximum values of 311.8 and 1465 pptv for PAN, 52.8 and 850.6 pptv for PPN, and 11.6 and 36.7 ppbv for 0 3 . In contrast, high levels were found as 94.2 and 374.9 ppbv for NOy, with a major constituent of NOx (75.9%).The source to the west and northwest made the significant contribution to the relatively high O-3 concentrations during nighttime. PAN concentrations were highly related with the PAN-rich air mass transported from the southeast during the nighttime, whereas predominated by local photochemical production during the daylight. The distributions of NO3 and NOy were dominated by local emission and photochemical production during daylight but also influenced by air masses transported from south direction during nighttime. Significant positive correlation (R-2 = 0.9, p < 0.0001) between PAN and PPN with a slope (Delta PPN/Delta PAN) of 0.17 indicated that anthropogenic volatile organic compounds (AVOCs) dominated the photochemical formation of PANs in Beijing, and the independent relationship between the PPN/PAN ratio and PAN (>500 pptv) implied a steady state between PAN and PPN achieving rapidly in the polluted air masses. Negative correlation and slopes between PAN and 0 3 likely resulted from their weak photochemical productions in the winter, coupled with the large NO sources which acted as a local sink for O-3, but much less so for PAN due to its enhanced thermal stability under low temperature. (C) 2020 Elsevier B.V. All rights reserved.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/44556]
专题	生态环境研究中心_大气污染控制中心
推荐引用方式 GB/T 7714	Zhang, Gen,Xia, Lingjun,Zang, Kunpeng,et al. The abundance and inter-relationship of atmospheric peroxyacetyl nitrate (PAN), peroxypropionyl nitrate (PPN), O-3, and NOy during the wintertime in Beijing, China[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2020,718:1-7.
APA	Zhang, Gen.,Xia, Lingjun.,Zang, Kunpeng.,Xu, Wanyun.,Zhang, Fang.,...&Mu, Yujing.(2020).The abundance and inter-relationship of atmospheric peroxyacetyl nitrate (PAN), peroxypropionyl nitrate (PPN), O-3, and NOy during the wintertime in Beijing, China.SCIENCE OF THE TOTAL ENVIRONMENT,718,1-7.
MLA	Zhang, Gen,et al."The abundance and inter-relationship of atmospheric peroxyacetyl nitrate (PAN), peroxypropionyl nitrate (PPN), O-3, and NOy during the wintertime in Beijing, China".SCIENCE OF THE TOTAL ENVIRONMENT 718(2020):1-7.