Seasonal and diurnal variations of atmospheric peroxyacetyl nitrate, peroxypropionyl nitrate, and carbon tetrachloride in Beijing
文献类型:期刊论文
作者 | Zhang, Gen ; Mu, Yujing ; Liu, Junfeng ; Zhang, Chenglong ; Zhang, Yuanyuan ; Zhang, Yujie ; Zhang, Hongxing |
刊名 | JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA
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出版日期 | 2014 |
卷号 | 26期号:1页码:65-74 |
关键词 | atmospheric peroxyacetyl nitrate peroxypropionyl nitrate carbon tetrachloride Beijing atmosphere |
ISSN号 | 1001-0742 |
中文摘要 | Atmospheric peroxyacetyl nitrate (PAN), peroxypropionyl nitrate (PPN), and carbon tetrachloride (CCl4) were measured from September 2010 to August 2011 in Beijing. PAN exhibited low values from mid-autumn to early spring (October to March) with monthly average concentrations ranging from 0.28 to 0.73 ppbV, and increased from early spring to summer (March to August), ranging from 1.37-3.79 ppbV. The monthly variation of PPN was similar to PAN, with low values (below detection limit to 0.18 ppbV) from mid-autumn to early spring, and a monthly maximum in September (1.14 ppbV). The monthly variation of CCl4 was tightly related to the variation of temperature, exhibiting a minimum in winter (69.3 pptV) and a maximum of 180.6 pptV in summer. Due to weak solar intensity and short duration, PAN and O-3 showed no distinct diurnal patterns from morning to night during winter, whereas for other seasons, they both exhibited maximal values in the late afternoon (ca. 15:00 to 16:00 local time) and minimal values during early morning and midnight. Good linear correlations between PAN and PPN were found in autumn (R = 0.91), spring (R = 0.94), and summer (R = 0.81), with slopes of 0.130, 0.222, and 0.133, respectively, suggesting that anthropogenic hydrocarbons dominated the photochemical formation of PANs in Beijing. Positive correlation between PAN and O-3 in summer with the low slopes (Delta O-3/APAN) ranging from 9.92 to 18.0 indicated serious air pollution in Beijing, and strong negative correlation in winter reflected strong O-3 consumption by NO titration and less thermal decompositin of PAN. |
WOS记录号 | WOS:000330333400008 |
公开日期 | 2015-03-23 |
源URL | [http://ir.rcees.ac.cn/handle/311016/9264] ![]() |
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,Liu, Junfeng,et al. Seasonal and diurnal variations of atmospheric peroxyacetyl nitrate, peroxypropionyl nitrate, and carbon tetrachloride in Beijing[J]. JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA,2014,26(1):65-74. |
APA | Zhang, Gen.,Mu, Yujing.,Liu, Junfeng.,Zhang, Chenglong.,Zhang, Yuanyuan.,...&Zhang, Hongxing.(2014).Seasonal and diurnal variations of atmospheric peroxyacetyl nitrate, peroxypropionyl nitrate, and carbon tetrachloride in Beijing.JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA,26(1),65-74. |
MLA | Zhang, Gen,et al."Seasonal and diurnal variations of atmospheric peroxyacetyl nitrate, peroxypropionyl nitrate, and carbon tetrachloride in Beijing".JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA 26.1(2014):65-74. |
入库方式: OAI收割
来源:生态环境研究中心
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