Characterization of PM2.5-bound nitrated and oxygenated PAHs in two industrial sites of South China

被引：81
作者：
Wei, Shilong [1 ,2 ]
Huang, Bo [1 ,2 ]
Liu, Ming [1 ,2 ]
Bi, Xinhui [1 ]
Ren, Zhaofang [1 ,2 ]
Sheng, Guoying [1 ]
Fu, Jiamo [1 ,3 ]
机构：
[1] Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Organ Geochem, Guangdong Prov Key Lab Utilizat & Protect Environ, Guangzhou 510640, Guangdong, Peoples R China
[2] Chinese Acad Sci, Grad Univ, Beijing 100039, Peoples R China
[3] Shanghai Univ, Sch Environm & Chem Engn, Shanghai 200444, Peoples R China
来源：
ATMOSPHERIC RESEARCH | 2012年 / 109卷
基金：
中国国家自然科学基金;
关键词：
PAHs; Nitro-PAHs; Oxy-PAHs; Seasonal variation; Diurnal variation; PM2.5; POLYCYCLIC AROMATIC-HYDROCARBONS; NITRO-PAH; ORGANIC-COMPOUNDS; N-ALKANES; SEASONAL-VARIATION; SIZE DISTRIBUTION; WASTE LANDFILL; GUANGZHOU CITY; DIESEL EXHAUST; AMBIENT AIR;
D O I：
10.1016/j.atmosres.2012.01.009
中图分类号：
P4 [大气科学（气象学）];
学科分类号：
0706 ; 070601 ;
摘要：
Daytime and nighttime PM2.5 samples were collected between August 5 and 16, 2009 and between January 24 and February 4, 2010 in an industrial complex site (site A) and an e-waste recycling site (site B) to determine the seasonal and diurnal variations of nitrated (nitro-) and oxygenated (oxy-) polycyclic aromatic hydrocarbons (PAHs) with gas chromatography/mass spectrometry (GC/MS). The two sites show similar composition for nitro- and oxy-PAHs although the composition of parent PAHs was quite different. 3 + 2-Nitrofluoranthene (3 + 2NFL) was the most abundant nitro-PAH, while 9,10-anthraquinone (Anquin), benzanthrone (Bzone) and 6H-benzo[cd]pyrene-6-one (Bpone) were the three major oxy-PAHs species. The concentrations of Sigma nitro-PAHs and Sigma oxy-PAHs were about 2-3 orders of magnitude lower than those of Sigma parent PAHs. Most of the nitro- and oxy-PAHs show notable seasonal variation. 7-Nitrobenz[a]anthracene (7NBaA). Bzone and benzo[a]anthrancene-7,12-dione (Bzdion) demonstrated a pronounced diurnal variation. The occurrence of nitro- and oxy-PAHs in the two sites can be accounted by direct emission and atmospheric secondary formation. (C) 2012 Elsevier B.V. All rights reserved.
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收藏
页码：76 / 83
页数：8
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