| Abstract |
100 water samples were collected during 1966-1970 from various fish processing establishments in the Cochin area and analysed for pH, total dissolved solids, chlorides, hardness (total, temporary and permanent), hardness due to Ca and Mg, alkalinity, sulphates, Cu and Fe. The extent of dependence on public and private water supplies was assessed. Analytical results are tabulated. Only 40% of the samples were within the limits of acceptability when all the quality criteria were considered together, the limiting factor being alkalinity. 32% of samples were soft water and 25% very hard. Total dissolved solids were mainly NaCl, due to the proximity of the wells to the sea. 25.6% of the factories studied obtained their water from private supplies. The necessity for improving water quality is stressed. |
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