Summertime distributions of peroxyacetyl nitrate (PAN) and peroxypropionyl nitrate (PPN) in Beijing: Understanding the sources and major sink of PAN
文献类型：期刊论文
| 作者 | Zhang, Gen; Mu, Yujing; Zhou, Lingxi; Zhang, Chenglong; Zhang, Yuanyuan; Liu, Junfeng; Fang, Shuangxi; Yao, Bo |
| 刊名 | ATMOSPHERIC ENVIRONMENT
 |
| 出版日期 | 2015-02 |
| 卷号 | 103期号:1页码:289-296 |
| 关键词 | Peroxyacetyl nitrate Peroxypropionyl nitrate Atmosphere Thermal decomposition |
| 英文摘要 | Peroxyacetyl nitrate (PAN), a major secondary pollutant in the atmosphere, has received much concern for its particular importance in atmospheric chemistry and adverse effects on human and plants. Atmospheric PAN and PPN were measured by using a gas chromatograph equipped with electron capture detector (GC-ECD) from June to September 2010, and the source and major sink for PAN were firstly studied in Beijing. The distinct diurnal variations of PAN and PPN with maximum in the afternoon were observed, and the mean and maximum values were 2.61 +/- 2.57 ppbv = 839) and 12.5 ppbv for PAN and 0.52 +/- 0.38 ppbv (N = 152) and 2.16 ppbv for PPN during the measuring period, respectively. Good correlation (R = 0.85) between PAN and PPN with a slope (Delta PPN/Delta PAN) of 0.134 indicated that anthropogenic volatile organic compounds (AVOCs) dominated the photochemical formation of PANs in Beijing. Further, we found acetaldehyde was the predominant carbonyl precursor of PAN with the contribution of 59.7% to the total peroxyacetyl (PA) radical. Methyl glyoxal, methacrolein, acetone, methyl vinyl ketone, and biacetyl contributed 7.1%, 8.8%, 19.7%, 3.4%, and 13% to total PA radical, respectively. Anti-correlation between PAN concentrations and the NO/NO2 ratios was found during the whole investigating period. In addition, the amount of PAN lost by thermal decomposition (TPAN) accounted for remarkable fractions of PAN observed under high temperature during both daytime and nighttime. (C) 2014 Elsevier Ltd. All rights reserved. |
| 研究领域[WOS] | Environmental Sciences ; Meteorology & Atmospheric Sciences |
| WOS记录号 | WOS:000349586400033 |
| 公开日期 | 2016-03-08 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/32458]  |
| 专题 | 生态环境研究中心_大气环境科学实验室 |
| 推荐引用方式 GB/T 7714 | Zhang, Gen,Mu, Yujing,Zhou, Lingxi,et al. Summertime distributions of peroxyacetyl nitrate (PAN) and peroxypropionyl nitrate (PPN) in Beijing: Understanding the sources and major sink of PAN[J]. ATMOSPHERIC ENVIRONMENT,2015,103(1):289-296. |
| APA | Zhang, Gen.,Mu, Yujing.,Zhou, Lingxi.,Zhang, Chenglong.,Zhang, Yuanyuan.,...&Yao, Bo.(2015).Summertime distributions of peroxyacetyl nitrate (PAN) and peroxypropionyl nitrate (PPN) in Beijing: Understanding the sources and major sink of PAN.ATMOSPHERIC ENVIRONMENT,103(1),289-296. |
| MLA | Zhang, Gen,et al."Summertime distributions of peroxyacetyl nitrate (PAN) and peroxypropionyl nitrate (PPN) in Beijing: Understanding the sources and major sink of PAN".ATMOSPHERIC ENVIRONMENT 103.1(2015):289-296. |
入库方式： OAI收割
来源：生态环境研究中心
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