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DOI | 10.1016/j.atmosenv.2017.04.003 |
Estimating relative contributions of primary and secondary sources of ambient nitrated and oxygenated polycyclic aromatic hydrocarbons | |
Zhuo, Shaojie1; Du, Wei1; Shen, Guofeng1,2,4; Li, Bengang1; Liu, Junfeng1; Cheng, Hefa1; Xing, Baoshan3; Tao, Shu1 | |
发表日期 | 2017-06-01 |
ISSN | 1352-2310 |
卷号 | 159页码:126-134 |
英文摘要 | Polycyclic aromatic hydrocarbons (PAHs) derivatives like nitrated and oxygenated PAHs (nitro- and oxy-PAHs) are of growing interests due to their direct and potentially high toxic properties. PAHs derivatives can be produced from primary sources and also can derive from photochemical reactions, however, works about the quantitative contributions of primary and secondary sources are scarce. In this study, levels and seasonal distributions of ambient nitro- and oxy-PAHs were studied in a megacity Nanjing located in East China and evaluated for relative contributions of different sources. The annual average concentrations of most PAH derivatives were generally lower than the levels found in north China, but higher than the levels reported for south China. The relative contributions of secondary formation ranged from 10% to 47% for nitro-PAHs and -60% for oxy-PAHs. The study suggested that typical source apportionment technologies could be adopted to investigate primary and secondary sources of PAHs derivatives when derivatives are simultaneously measured with parent PAHs and other source markers. Future studies are interesting to develop, evaluate and compare different source apportionment methodologies for PAHs derivatives. (C) 2017 Elsevier Ltd. All rights reserved. |
英文关键词 | PAHs derivatives;Source apportionment;PCA-MLR;PMF;Megacity;Western YRD region |
语种 | 英语 |
WOS记录号 | WOS:000401594500011 |
来源期刊 | ATMOSPHERIC ENVIRONMENT
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来源机构 | 美国环保署 |
文献类型 | 期刊论文 |
条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/60092 |
作者单位 | 1.Peking Univ, Coll Urban & Environm Sci, Beijing 100871, Peoples R China; 2.Jiangsu Prov Acad Environm Sci, Prov Key Lab Environm Engn, Nanjing 210036, Jiangsu, Peoples R China; 3.Univ Massachusetts, Stockbridge Sch Agr, Amherst, MA 01003 USA; 4.US EPA, Natl Risk Management Res Lab, Durham, NC 27709 USA |
推荐引用方式 GB/T 7714 | Zhuo, Shaojie,Du, Wei,Shen, Guofeng,et al. Estimating relative contributions of primary and secondary sources of ambient nitrated and oxygenated polycyclic aromatic hydrocarbons[J]. 美国环保署,2017,159:126-134. |
APA | Zhuo, Shaojie.,Du, Wei.,Shen, Guofeng.,Li, Bengang.,Liu, Junfeng.,...&Tao, Shu.(2017).Estimating relative contributions of primary and secondary sources of ambient nitrated and oxygenated polycyclic aromatic hydrocarbons.ATMOSPHERIC ENVIRONMENT,159,126-134. |
MLA | Zhuo, Shaojie,et al."Estimating relative contributions of primary and secondary sources of ambient nitrated and oxygenated polycyclic aromatic hydrocarbons".ATMOSPHERIC ENVIRONMENT 159(2017):126-134. |
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