Authors : A.D.Bobdey
Page Nos : 12-21
Description :
Abstract:
As a result of present study of the river in district Bandara, it is concluded that, the concentration of nitrates remains maximum during summer season and moderate during winter and rainy season. In view of the various domestic activities four sampling stations have been selected for the present investigation. Maximum concentration of nitrates observed during summer season in the month of April was 8.14 mg/L at station S-4, and 7.71 mg/L in the month of May during the next year at station S-4, While minimum values of nitrate concentration noted, 1.98 mg/L during rainy season, in the month of August at station S-1, and 1.77 mg/L in the month of August during the next year at station S-1. The proteinaceous organic matter present in municipal sewage and other wastes, on decomposition results in to the formation of ammonia. The increased activity of nitrifying bacteria in high temperature of river water causes the increase in the values of nitrates during summer season. Due to discharge of sewage and domestic wastes and less flow of water in the river results in to the turbidity. This may influence some extent, to the photosynthetic activities and up take of nutrients by phytoplanktons.
Key Words :
River, Nitrates, Nitrites, Concentration, health
