Relationship between horizontal extinction coefficient and PM10 concentration in Xi'an, china, during 1980-2002--颗粒学报PARTICUOLOGY

Che, H., Zhang, X., Li, Y., Zhou, Z., & Chen, Z. (2006). Relationship between horizontal extinction coefficient and PM10 concentration in Xi'an, china, during 1980-2002. China Particuology, 4(6), 327-329. https://doi.org/10.1016/S1672-2515(07)60284-X

Relationship between horizontal extinction coefficient and PM10 concentration in Xi'an, china, during 1980-2002

Huizheng Che ^{a b *}, Xiaoye Zhang ^a, Yang Li ^{b d}, Zijiang Zhou ^c, Zhenlin Chen ^{b d}

a Key Laboratory of Atmospheric Chemistry (LAC), Centre for Atmosphere Watch and Services (CAWAS) Chinese Academy of Meteorological Sciences, Chinese Meteorological Administration, Beijing 100081, China
b SKLLQG, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an 710075, China
c National Meteorological Information Center, Chinese Meteorological Administration, Beijing 100081, China
d Graduate School of the Chinese Academy of Sciences, Beijing 100039, China

10.1016/S1672-2515(07)60284-X

Volume 4, Issue 6, December 2006, Pages 327-329

Received 13 April 2006, Accepted 16 October 2006, Available online 14 December 2007.

E-mail: chehz@cams.cma.gov.cn

Highlights

Abstract

Based on daily visibility data obtained from 1980-2002 and air pollution index data from 2001-2004 in Xi'an, long-term variations and relationships for daily horizontal extinction coefficient and mass concentration of PM10 have been evaluated. A decreasing trend was found in horizontal extinction coefficient during the past 23 years, with higher values observed in 1980s relative to 1990s, and the highest and lowest values in winter and summer, respectively. Significant correlation and similar seasonal variations existed between horizontal extinction coefficient and PM10 concentration, suggesting the high influence of PM10 to the visibility drop at a site in the Guanzhong Plain of central China during the past two decades.

Graphical abstract

Keywords

visibility; aerosol; horizontal extinction coefficient; air pollution index; Xi'an

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