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Environ Pollut

Title:		On the use of an explicit chemical mechanism to dissect peroxy acetyl nitrate formation
Author(s):		Xue L; Wang T; Wang X; Blake DR; Gao J; Nie W; Gao R; Gao X; Xu Z; Ding A; Huang Y; Lee S; Chen Y; Wang S; Chai F; Zhang Q; Wang W;
Address:		"Department of Civil and Environmental Engineering, Hong Kong Polytechnic University, Hong Kong, China; Environment Research Institute, Shandong University, Ji'nan, Shandong, China. Electronic address: xuelikun@gmail.com. Department of Civil and Environmental Engineering, Hong Kong Polytechnic University, Hong Kong, China; Environment Research Institute, Shandong University, Ji'nan, Shandong, China; Chinese Research Academy of Environmental Sciences, Beijing, China. Electronic address: cetwang@polyu.edu.hk. Environment Research Institute, Shandong University, Ji'nan, Shandong, China. Department of Chemistry, University of California at Irvine, Irvine, CA, USA. Chinese Research Academy of Environmental Sciences, Beijing, China. Institute for Climate and Global Change Research, Nanjing University, Nanjing, Jiangsu, China. Environment Research Institute, Shandong University, Ji'nan, Shandong, China; School of resources and environment, Ji'nan University, Shandong, China. Department of Civil and Environmental Engineering, Hong Kong Polytechnic University, Hong Kong, China. Environment Research Institute, Shandong University, Ji'nan, Shandong, China; Chinese Research Academy of Environmental Sciences, Beijing, China"
Journal Title:		Environ Pollut
Year:		2014
Volume:		20140903
Issue:
Page Number:		39 - 47
DOI:		10.1016/j.envpol.2014.08.005
ISSN/ISBN:		1873-6424 (Electronic) 0269-7491 (Linking)
Abstract:		"Peroxy acetyl nitrate (PAN) is a key component of photochemical smog and plays an important role in atmospheric chemistry. Though it has been known that PAN is produced via reactions of nitrogen oxides (NOx) with some volatile organic compounds (VOCs), it is difficult to quantify the contributions of individual precursor species. Here we use an explicit photochemical model--Master Chemical Mechanism (MCM) model--to dissect PAN formation and identify principal precursors, by analyzing measurements made in Beijing in summer 2008. PAN production was sensitive to both NOx and VOCs. Isoprene was the predominant VOC precursor at suburb with biogenic impact, whilst anthropogenic hydrocarbons dominated at downtown. PAN production was attributable to a relatively small class of compounds including NOx, xylenes, trimethylbenzenes, trans/cis-2-butenes, toluene, and propene. MCM can advance understanding of PAN photochemistry to a species level, and provide more relevant recommendations for mitigating photochemical pollution in large cities"
Keywords:		"Air Pollutants/*analysis/chemistry Cities *Models, Chemical Peracetic Acid/*analogs & derivatives/analysis/chemistry Photochemistry Seasons Volatile Organic Compounds/*analysis/chemistry Aromatics Isoprene Master Chemical Mechanism OVOCs Peroxy acetyl nit;"
Notes:		"MedlineXue, Likun Wang, Tao Wang, Xinfeng Blake, Donald R Gao, Jian Nie, Wei Gao, Rui Gao, Xiaomei Xu, Zheng Ding, Aijun Huang, Yu Lee, Shuncheng Chen, Yizhen Wang, Shulan Chai, Fahe Zhang, Qingzhu Wang, Wenxing eng Research Support, Non-U.S. Gov't England 2014/09/10 Environ Pollut. 2014 Dec; 195:39-47. doi: 10.1016/j.envpol.2014.08.005. Epub 2014 Sep 3"