SESSION-4: Limnology of Lakes, Reservoirs, Wetlands
PAPER-11: On the Sewage Induced Salinity of Freshwater Ponds
Somashekhar R. Desai

Abstract:

Salinity of three fresh water ponds was studied on monthly basis for one year. Major cations like Ca, Mg, Na and K; and major anions like Chloride, HCO 3 and SO 4 were analysed. Of the three ponds Kalghtagi pond, which was subjected to the sewage contamination, showed significant higher values of salinity along with higher values of all the salinity causing ions except SO 4 . On the other hand, in Tamboor and Madakihonnalli ponds, which were free from sewage, lower values of these ions clearly indicated the influence of sewage on the salinity maxima of Kalghatgi pond.