Quality of Surface water in Nicobar Islands, India
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Title |
Quality of Surface water in Nicobar Islands, India
Not Available |
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Creator |
T. P. Swarnam, A. Velmurugan, Tulsi Pawan Sai, Priyanka Srivastava, Rachel and S. Dam Roy
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Subject |
Surface water
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Description |
Not Available
Water is one of the most critical resource and constraint in an Island ecosystem where only rainfed agriculture is prevalent. As the surface water sources play an important role in sustaining life in these islands and a study was undertaken to ascertain the status of water quality for domestic and other purpose in Nicobar Islands. The chemical composition of the surface water samples in the islands showed not much variation. The EC values of the region varied from 250 to 860 μS cm-1 with mean value of 497 μS cm-1. Among the dissolved ions, Ca2+ and Mg2+ predominates the cation concentration with values ranging from 37 to 53 ppm and 13.2 to 30.3 ppm respectively and the cation composition was in the order of Ca2+> Mg2+>Na+>K+ in all the samples tested. The pH of the water samples across the islands varied from 7.4 to 7.9 with mean value of 7.6 with carbonates mainly in the form of HCO3 -. The classification of water based on WHO(1993) and ISI (1991) standards indicates that the water is fresh water type as the TDS is less than 500ppm. Only temporary hardness caused by bicarbonate results classification of the water in moderately hard to hard category. Not Available |
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Date |
2021-07-28T06:17:46Z
2021-07-28T06:17:46Z 2014-03-27 |
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Type |
Book chapter
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Identifier |
T. P. Swarnam, A. Velmurugan, Tulsi Pawan Sai, Priyanka Srivastava, Rachel and S. Dam Roy , March 2014
Not Available http://krishi.icar.gov.in/jspui/handle/123456789/50499 |
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Language |
English
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Relation |
Not Available;
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Publisher |
Not Available
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