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Subject: 地理学::自然地理学
Title: Source apportionment of particle-bound polycyclic aromatic hydrocarbons in Lumbini, Nepal by using the positive matrix factorization receptor model
Author: Chen, PF (Chen, Pengfei)1, 4; Li, CL (Li, Chaoliu)1; Kang, SC (Kang, Shichang)2, 3; Yan, FP (Yan, Fangping)2, 4; Zhang, QG (Zhang, Qianggong)1, 3; Ji, ZM (Ji, Zhengming)1; Tripathee, L (Tripathee, Lekhendra)2; Rupakheti, D (Rupakheti, Dipesh)1, 4; Rupakheti, M (Rupakheti, Maheswar)5; Qu, B (Qu, Bin)6; Sillanpaa, M (Sillanpaa, Mika)6
Corresponding Author: Kang, SC
Keyword: Polycyclic aromatic hydrocarbons ; Source ; PMF ; Lumbini ; Indo-Gangetic Plain KeyWords Plus: TOXIC EQUIVALENCY FACTORS ; SOURCE IDENTIFICATION ; ATMOSPHERIC PM2.5 ; ORGANIC-COMPOUNDS ; URBAN ATMOSPHERE ; AIR-QUALITY ; PAHS ; CHINA ; INDIA ; PM10
Source: ATMOSPHERIC RESEARCH
Issued Date: 2016
DOI: 10.1016/j.atmosres.2016.07.011
Volume: 182, Issue:0, Pages:46-53
Indexed Type: SCI
Cooperation Status: 国际
DOC Type: Article
English Abstract: 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.
Language: 英语
WOS ID: WOS:000384868900006
Citation statistics:
Content Type: 期刊论文
URI: http://ir.itpcas.ac.cn/handle/131C11/7468
Appears in Collections:图书馆_期刊论文

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description.institution: 1.Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Tibetan Environm Changes & Land Surface P, Beijing 100101, Peoples R China
2.Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, State Key Lab Cryospher Sci, Donggangxi Rd, Lanzhou 730000, Peoples R China
3.CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100085, Peoples R China
4.Univ Chinese Acad Sci, Beijing 100039, Peoples R China
5.Inst Adv Sustainabil Studies, D-14467 Potsdam, Germany
6.Lappeenranta Univ Technol, Lab Green Chem, Sammonkatu 12, Mikkeli 50130, Finland

Recommended Citation:
Chen, PF ,Li, CL ,Kang, SC ,et al. Source apportionment of particle-bound polycyclic aromatic hydrocarbons in Lumbini, Nepal by using the positive matrix factorization receptor model[J]. ATMOSPHERIC RESEARCH,2016,182(0):46-53.
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