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Physicochemical studies on coastal pollution off Bombay

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Title Physicochemical studies on coastal pollution off Bombay
 
Creator De, M D Zing
Trivedi, S K
Desai, B N
 
Description 271-277
Variations of salinity, dissolved oxygen (DO) and biochemical oxygen demand (BOD) in the creeks, bays and coastal region around Bombay, Maharashtra, India were studied. Currents varied depending on the tide and their direction in creeks and streams was dominated by the physical features of the channel. Currents did not vary appreciably from the surface to bottom. Salinity varied widely from < 5% during August to >34 % after March. Generally, the monsoon period was characterised by well marked vertical salinity gradient except in the coastal region, which disappeared at most of the stations during the postmonsoon period. Coastal water was vertically homogeneous throughout the year while some lateral salinity gradient was observed during August. DO profiles were similar at most stations. In general, higher DO observed in August sharply decreased during September and then gradually increased to maximum in February, followed by a gradual decrease till May. This trend appears to be due to the combined effect of BOD, temperature and photosynthetic activity. Abnormally low DO and high BOD were observed at Upper Thana, Mahim Bay and Versova Creek due to the influence of waste water discharged at these locations. Mahim Bay was worst affected with DO levels sometimes falling to
 
Date 2016-12-27T09:03:48Z
2016-12-27T09:03:48Z
1979-12
 
Type Article
 
Identifier 0975-1033 (Online); 0379-5136 (Print)
http://nopr.niscair.res.in/handle/123456789/39254
 
Language en_US
 
Rights CC Attribution-Noncommercial-No Derivative Works 2.5 India
 
Publisher NISCAIR-CSIR, India
 
Source IJMS Vol.08(4) [December 1979]