A novel approach for apportionment between primary and secondary sources   of airborne nitrated polycyclic aromatic hydrocarbons (NPAHs)

doi:10.1016/j.atmosenv.2016.05.017

CORC > 北京大学 > 环境科学与工程学院

	A novel approach for apportionment between primary and secondary sources of airborne nitrated polycyclic aromatic hydrocarbons (NPAHs)
	Lin, Yan ; Qiu, Xinghua ; Ma, Yiqiu ; Wang, Junxia ; Wu, Yusheng ; Zeng, Limin ; Hu, Min ; Zhu, Tong ; Zhu, Yifang
刊名	ATMOSPHERIC ENVIRONMENT
	2016
关键词	NPAHs NO2 Source apportionment Secondary formation GRIDDED FIELD OBSERVATIONS NORTH CHINA HETEROGENEOUS REACTION SPATIAL-DISTRIBUTION ORGANIC-COMPOUNDS BOUND PAHS NITRO-PAHS ATMOSPHERE MUTAGENICITY PM2.5
DOI	10.1016/j.atmosenv.2016.05.017
英文摘要	Nitrated polycyclic aromatic hydrocarbons (NPAHs) are strong environmental mutagens and carcinogens originating from both primary emissions and secondary reactions in the atmosphere. The sources and the toxicity of different NPAH species could vary greatly; therefore a specie-specific source apportionment is essential to evaluate their health risks and to formulate controlling regulations. However, few studies have reported source apportionment of NPAHs species to date. In this study, we developed an easy-to-perform method for the apportionment of primary versus secondary sources of airborne NPAHs based on the relationship between NPAHs and NO2. After log-transformation of both NPAHs and NO2 concentrations, a slope of beta between these two variables was obtained by the linear regression. When (3 is significantly smaller than 1, it indicates primary emissions while 13 significantly greater than 1 suggests secondary formation. We have validated this method with data previously collected in Beijing. A good correlation, with R value of 0.57, was observed between results produced by this new method and by Positive Matrix Factorization (PMF). The correlation could be further improved (R = 0.71) if the gas/particle partition of NPAHs is taken into consideration. This developed method enables the source apportionment for individual NPAHs species and could be used to validate the results of other receptor models. (C) 2016 Elsevier Ltd. All rights reserved.; National Institute of Environmental Health Sciences (NIEHS) [1R21ES024560]; National Natural Science Foundation of China (NSFC) [21322705, 41561144007, 41421064, 21190051]; Ministry of Science and Technology of China Grants (973 program) [2015CB553401]; Top-Notch Young Talents Program of China; Collaborative Innovation Center for Regional Environmental Quality; Chinese Scholarship Council; SCI(E); EI; ARTICLE; xhqiu@pku.edu.cn; yifang@ucla.edu; 108-113; 138
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/437081]
专题	环境科学与工程学院
推荐引用方式 GB/T 7714	Lin, Yan,Qiu, Xinghua,Ma, Yiqiu,et al. A novel approach for apportionment between primary and secondary sources of airborne nitrated polycyclic aromatic hydrocarbons (NPAHs)[J]. ATMOSPHERIC ENVIRONMENT,2016.
APA	Lin, Yan.,Qiu, Xinghua.,Ma, Yiqiu.,Wang, Junxia.,Wu, Yusheng.,...&Zhu, Yifang.(2016).A novel approach for apportionment between primary and secondary sources of airborne nitrated polycyclic aromatic hydrocarbons (NPAHs).ATMOSPHERIC ENVIRONMENT.
MLA	Lin, Yan,et al."A novel approach for apportionment between primary and secondary sources of airborne nitrated polycyclic aromatic hydrocarbons (NPAHs)".ATMOSPHERIC ENVIRONMENT (2016).