An Experimental Investigation of Peenya industrial area Water Quality Index in Bangalore, Karnataka, South India

Abstract

Greater Bangalore is the fastest industrialization zone in India. In Bangalore, Peenya area is known for industries. Hence it has another name as Peenya Industrial Area. This area is famous for manufacturing automobile, electronic and chemical equipment parts. Hence maximum water consumption in Bangalore is at Peenya Industrial Area. Water used for washing of raw materials after and during production process will be discharged as effluents. Hence the effluents from the industry are reaching groundwater.  In this paper an attempt is made to check the quality of drinking water by conducting test with respect to water quality index (WQI) and proportion of heavy metals in contaminated water.  The value of water quality index obtained is 138.94.  The obtained value comes under “Poor Water Category” as per water quality classification based on WQI value, which is not suitable for drinking purpose. The results of heavy metal analyses were compared with Bureau of Indian Standard (BIS) values. Almost all the water samples have concentration within the permissible limits or BDL. The reason for this might be due to closing and shifting of industries during recent years. Industries shifted from Peenya industrial area to Dabaspet industrial area in Tumkur District. Only in two places (sample number P1 and P10) the concentration of chromium (0.29 mg/lit and 0.34 mg/lit) is above the permissible limits. Hence it is not suitable for domestic purpose in above places.