气候变化领域集成服务门户(CCPortal): Source apportionment of particle-bound polycyclic aromatic hydrocarbons in Lumbini, Nepal by using the positive matrix factorization receptor model

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DOI	10.1016/j.atmosres.2016.07.011
	Source apportionment of particle-bound polycyclic aromatic hydrocarbons in Lumbini, Nepal by using the positive matrix factorization receptor model
	Chen, Pengfei; Li, Chaoliu; Kang, Shichang; Yan, Fangping; Zhang, Qianggong; Ji, Zhengming; Tripathee, Lekhendra; Rupakheti, Dipesh; Rupakheti, Maheswar; Qu, Bin; Sillanpaa, Mika
发表日期	2016
ISSN	0169-8095
EISSN	1873-2895
卷号	182
英文摘要	Indo-Gangetic Plain (IGP) is one of the most polluted regions in the world. Despite numbers of studies conducted at urban site, few data are available at rural area. In this study, characteristics of 15 particle-bound priority poly cyclic aromatic hydrocarbons (PAHs) of total suspended particles (TSPs) collected at a typical rural area (Lumbini) of IGP from April 2013 to March 2014 were reported. The results showed that annual average TSP and PAH concentrations were 209 +/- 123 mu g/m(3) and 94.8 +/- 54.6 ng/m(3), respectively, which were similar to those of large cities such as Agra and Delhi in the upwind adjacent regions. Clear seasonal variation of TSP and PAH concentrations was observed, with the highest average concentration occurring in winter followed by the pre-monsoon, post-monsoon, and monsoon seasons, reflecting combined influence of source strength and monsoon circulation on PAH concentrations of Lumbini. Positive matrix factorization analysis showed that biomass combustion (50.6%) and vehicular emissions (30.4%) were first two sources of PAHs, followed by coal combustion (11.6%) and air-soil exchange (7.4%), in line with that of diagnostic molecular ratios results. Because of extensive agro-residue burning, intensive forest fires, and conducive weather conditions, contribution of biomass burning during non-monsoon season (55.7%) was higher than that of monsoon season (42.1%). The total BaP equivalent concentration (BaPeq) of particulate PAHs ranged between 2.51 and 47.3 ng/m(3), was 2-40 times higher than the WHO guideline (1 ng/m(3)), implying local residents were at risk for adverse health effects. (C) 2016 Elsevier B.V. All rights reserved.
关键词	Polycyclic aromatic hydrocarbons Source PMF Lumbini Indo-Gangetic Plain
学科领域	Meteorology & Atmospheric Sciences
语种	英语
WOS研究方向	Meteorology & Atmospheric Sciences
来源期刊	ATMOSPHERIC RESEARCH
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/111824
作者单位	Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Tibetan Environm Changes & Land Surface P, Beijing 100101, Peoples R China
推荐引用方式 GB/T 7714	Chen, Pengfei,Li, Chaoliu,Kang, Shichang,et al. Source apportionment of particle-bound polycyclic aromatic hydrocarbons in Lumbini, Nepal by using the positive matrix factorization receptor model[J]. 中国科学院西北生态环境资源研究院,2016,182.
APA	Chen, Pengfei.,Li, Chaoliu.,Kang, Shichang.,Yan, Fangping.,Zhang, Qianggong.,...&Sillanpaa, Mika.(2016).Source apportionment of particle-bound polycyclic aromatic hydrocarbons in Lumbini, Nepal by using the positive matrix factorization receptor model.ATMOSPHERIC RESEARCH,182.
MLA	Chen, Pengfei,et al."Source apportionment of particle-bound polycyclic aromatic hydrocarbons in Lumbini, Nepal by using the positive matrix factorization receptor model".ATMOSPHERIC RESEARCH 182(2016).