Evaluation of regional background particulate matter concentration based on vertical distribution characteristics

被引：48
|
作者：
Han, S. [1 ,2 ]
Zhang, Y. [1 ]
Wu, J. [1 ]
Zhang, X. [1 ]
Tian, Y. [1 ]
Wang, Y. [1 ]
Ding, J. [1 ]
Yan, W. [1 ]
Bi, X. [1 ]
Shi, G. [1 ]
Cai, Z. [2 ]
Yao, Q. [2 ]
Huang, H. [2 ]
Feng, Y. [1 ]
机构：
[1] Nankai Univ, Coll Environm Sci & Engn, State Environm Protect Key Lab Urban Ambient Air, Tianjin 300071, Peoples R China
[2] Res Inst Meteorol Sci, Tianjin 300074, Peoples R China
来源：
ATMOSPHERIC CHEMISTRY AND PHYSICS | 2015年 / 15卷 / 19期
基金：
中国国家自然科学基金;
关键词：
RIVER DELTA REGION; SOURCE APPORTIONMENT; AIR-POLLUTION; CHEMICAL-COMPOSITION; ORGANIC-CARBON; BOUNDARY-LAYER; AEROSOL; CHINA; VARIABILITY; PARTICLES;
D O I：
10.5194/acp-15-11165-2015
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Heavy regional particulate matter (PM) pollution in China has resulted in an important and urgent need for joint control actions among cities. It is advisable to improve the understanding of the regional background concentration of PM for the development of efficient and effective joint control policies. With the increase of height the influence of source emission on local air quality decreases with altitude, but the characteristics of regional pollution gradually become obvious. A method to estimate regional background PM concentration is proposed in this paper, based on the vertical characteristics of periodic variation in the atmospheric boundary layer structure and particle mass concentration, as well as the vertical distribution of particle size, chemical composition and pollution source apportionment. According to the method, the averaged regional background PM2.5 concentration in July, August and September 2009, being extracted from the original time series in Tianjin, was 40 +/- 20, 64 +/- 17 and 53 +/- 11 mu g m(-3), respectively.
引用
收藏
页码：11165 / 11177
页数：13
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