RELATIONSHIP BETWEEN HORIZONTAL EXTINCTION COEFFICIENT AND PM10 CONCENTRATION IN XI'AN,CHINA,DURING 1980-2002

被引：0
|
作者：
Huizheng Che1
机构：
来源：
Particuology | 2006年 / 06期
关键词：
visibility; aerosol; horizontal extinction coefficient; air pollution index; Xi’an;
D O I：
暂无
中图分类号：
X51 [大气污染及其防治];
学科分类号：
0706 ; 070602 ;
摘要：
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.
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页码：327 / 329
页数：3
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