Chemical composition of rainwater around an industrial region in Mumbai

被引：0

作者：

Naik, MS ^{[1
]}

Momin, GA ^{[1
]}

Rao, PSP ^{[1
]}

Safai, PD ^{[1
]}

Ali, K ^{[1
]}

机构：

[1] Indian Inst Trop Meteorol, Pune 411008, Maharashtra, India

来源：

CURRENT SCIENCE | 2002年 / 82卷 / 09期

关键词：

D O I：

暂无

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Chemical analysis of rainwater samples collected at Kalyan, a downwind location of a large industrial belt, and at Alibag and Colaba, the upwind locations, during the southwest monsoon seasons of 1994 and 1995 and comparison with similar data of 1973-74 reveal that pH of rainwater at Kalyan which was alkaline 20 years ago became acidic due to long-term effect of pollutants. A decreasing trend in excess SO4 was observed at Colaba and Kalyan, which is attributed to the pollution control measures adopted by industries and switching over from coal to natural gas which contains low sulphur. Whereas the increasing trend in NOx observed at Kalyan and Colaba, is attributable to increased automobile emission.

引用

页码：1131 / 1137

页数：7

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