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Chemical composition of rainwater around an industrial region in Mumbai

Naik, MS and Momin, GA and Rao, PSP and Safai, PD and Ali, K (2002) Chemical composition of rainwater around an industrial region in Mumbai. Current Science, 82 (9). pp. 1131-1137.

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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.

Item Type: Article
Additional Information: Copyright of this article belongs to Indian Academy of Science
Subjects: Meteorology and Climatology
Depositing User: IITM Library
Date Deposited: 24 Apr 2015 14:30
Last Modified: 24 Apr 2015 14:30

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