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| Titel |
Evaluation of regional background particulate matter concentration based on vertical distribution characteristics |
| VerfasserIn |
S. Han, Y. Zhang, J. Wu, X. Zhang, Y. Tian, Y. Wang, J. Ding, W. Yan, X. Bi, G. Shi, Z. Cai, Q. Yao, H. Huang, Y. Feng |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1680-7316
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| Digitales Dokument |
URL |
| Erschienen |
In: Atmospheric Chemistry and Physics ; 15, no. 19 ; Nr. 15, no. 19 (2015-10-07), S.11165-11177 |
| Datensatznummer |
250120083
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| Publikation (Nr.) |
 copernicus.org/acp-15-11165-2015.pdf |
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| Zusammenfassung |
| 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 μg m−3, respectively. |
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