Shankar B S, Balasubramanya N, Reddy M T Maruthesha
Civil Engineering Department, EPCET, Bangalore.
J Environ Sci Eng. 2008 Apr;50(2):97-102.
The present study aims at the assessment of groundwater quality in and around the Vrishabhavathi Valley, the erstwhile fresh water stream, today carrying huge quantities of industrial, agricultural and domestic effluents from the western part of Bangalore metropolis. Groundwater samples were collected from both bore wells and open wells along the Vrishabhavathi watershed and subjected to a comprehensive physico-chemical and bacteriological analysis. The study revealed that 57% of the samples were non-potable due to their values when compared to the BIS standards. The concentrations of nitrate and total hardness were found higher than the standards in 43.33% and 40% of the samples respectively. 50% of the samples examined, indicated bacterial contamination in the groundwater.
本研究旨在评估毗湿奴巴瓦蒂河谷及其周边地区的地下水质量。该河谷曾是一条淡水溪流，如今承载着来自班加罗尔大都市西部的大量工业、农业和生活污水。沿着毗湿奴巴瓦蒂流域，从钻孔井和露天井中采集了地下水样本，并进行了全面的物理化学和细菌学分析。研究表明，与印度标准局（BIS）的标准相比，57%的样本因各项指标值而不适于饮用。分别有43.33%和40%的样本中硝酸盐和总硬度的浓度高于标准。所检测样本的50%表明地下水中存在细菌污染。
