Volume : 3, Issue : 10, OCT 2017

PHYSICO-CHEMICAL ANALYSIS OF GROUND WATER QUALITY WITH SPECIAL REFERENCE TO NITRATE OF BARACHATTI BLOCK O, GAYA DISTRICT, BIHAR (INDIA)

ARVIND KUMAR, V K PRABHAT

Abstract

The present investigation deals with ground water quality of five different areas of barachatti block and its adjoing area i.e. Barachatti (S1), Sharma (S2), Bazarker (S3), Rohi (S4) and Shobh (S5). The groundwater parameters such as temperature, pH, turbidity, electrical conductivity, alkalinity, dissolved oxygen, biochemical oxygen demand, total hardness, calcium, magnesium, phosphate, sulphate, arsenic, iron, chloride and fluoride were estimated in the samples to evaluate their quality. The data of physico chemical parameters are compared with WHO (1992) and IS: 10500 standards for drinking water. Our result revealed that concentration of DO, BOD, Total hardness, Calcium, magnesium, sulphate, turbidity, alkalinity, phosphate, iron and chloride are within permissible limits and Iron, phosphate are negligible in comparison to permissible limits whereas the concentration of nitrate is higher at sampling areas S2 ,S3 and S5 .The concentration of from 20 mg/l to 60 mg/L which is higher the permissible limit of WHO health based guide line values. The concentrations of nitrate above 40mg/L cause Blue diseases in infants (Sharma, 1997). The higher concentration of nitrate needs proper treatment before the use for drinking purposes and irrigation purposes. Finally it can be suggested that an intensive study may be carried out before the domestic consumption.

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