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VOL. 8, ISSUE 6 (2023)
Evaluation of pollution by palmer’s algal pollution indices and physico-chemical analysis of kayamkulam lake, Kerala, India
Authors
Soumya Das K, Sekaran S
Abstract
The present investigation was carried out in Kayamkulam Lake near
National Thermal Power Corporation (NTPC) industrial area, Alappuzha district,
Kerala, India, with regard to the pollution status by using Palmer’s algal
pollution indices and water quality analysis. The sampling sites were selected
on the basis of their importance. Monthly variations in physico- chemical parameters
like pH, Total Alkalinity (TA), CO2, Dissolved oxygen (DO), Total
Hardness (TH), Phosphate, Sulphate, Nitrate, Biological Oxygen Demand (BOD) and
Chemical Oxygen Demand (COD) were recorded. Organic pollution was assessed by
employing Palmer’s algal pollution indices. The total score of generic
pollution index is 29, 32 and 31 for Sites I, II and III respectively. The total
score in species pollution index is 21, 23 and 22 for Sites I, II and III
respectively. The total score in both the indices were greater than 20, confirming
high organic pollution, which can be substantiated by the physico chemical
analysis of water. Results of the study showed that the lake water is not suitable
for irrigation and domestic purpose without proper treatment. The results are
discussed in the text.
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Pages:55-58
How to cite this article:
Soumya Das K, Sekaran S "Evaluation of pollution by palmer’s algal pollution indices and physico-chemical analysis of kayamkulam lake, Kerala, India". International Journal of Botany Studies, Vol 8, Issue 6, 2023, Pages 55-58
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