Effect of winds on SO2 and SPM concentrations in Delhi

被引：71

作者：

Goyal, P ^{[1
]}

Sidhartha ^{[1
]}

机构：

[1] Indian Inst Technol, Ctr Atmospher Sci, New Delhi 110016, India

来源：

ATMOSPHERIC ENVIRONMENT | 2002年 / 36卷 / 17期

关键词：

concentrations; winds frequency; winter and monsoon;

D O I：

10.1016/S1352-2310(02)00218-2

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

A study of concentrations of sulfur dioxide (SO2) and suspended particulate matter (SPM) has been performed in Delhi. The monthly and seasonal variations of concentrations and winds are analyzed. The monthly mean SO2 concentrations were in the range of 16.15-34.44 mug m(-3) and showed regular seasonal variations with the highest concentrations in winter and lowest in monsoon season. On the other hand, the monthly mean SPM concentrations reached the highest (465.68 mug m(-3)) in November and the lowest (150.07 mug m(-3)) in August. It was observed that high SO2 concentrations were generally associated with the wind blowing from WNW-NW directions, and the high SPM concentrations were usually related to the wind blowing from W-NW directions. (C) 2002 Elsevier Science Ltd. All rights reserved.

引用

页码：2925 / 2930

页数：6

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