Raveen R, Daniel M
Department of Zoology, Madras Christian College, Chennai - 600 059, Tamil Nadu, India.
J Environ Sci Eng. 2010 Jul;52(3):259-64.
Manifold increase in population of Chennai city (India) has resulted in a rapid decrease in the groundwater level due to its over exploitation. The Government of Tamil Nadu has been exploring various ways and means to combat this problem. The present study was undertaken to assess the quality of water in three important major lakes of Chennai and its suburbs such as Porur lake, Puzhal lake and Chembarambakkam lake which recharge the groundwater as well as these lakes are harnessed by the Tamil Nadu Government to supply potable water to the residents of Chennai. The parameters studied were colour, odour, taste, turbidity, temperature, pH, Dissolved Oxygen, Biological Oxygen Demand, Chemical Oxygen Demand, alkalinity, acidity, chlorides, Total Suspended Solids, Total Dissolved Solids and total hardness. Results indicate that the quality of water from these lakes is within the acceptable values. However, the TDS values were on the higher side in all the three lakes even though within the permissible limit prescribed by BIS. All the three lakes appear to be vulnerable to pollution as they are situated within or in close proximity to heavily populated areas.
印度钦奈市人口的大量增加，由于过度开采导致地下水位迅速下降。泰米尔纳德邦政府一直在探索各种方法来应对这个问题。本研究旨在评估钦奈及其郊区三个重要的主要湖泊（如波鲁尔湖、普扎尔湖和钦巴兰巴卡姆湖）的水质，这些湖泊为地下水补充水源，并且泰米尔纳德邦政府利用这些湖泊为钦奈居民供应饮用水。所研究的参数包括颜色、气味、味道、浊度、温度、pH值、溶解氧、生物需氧量、化学需氧量、碱度、酸度、氯化物、总悬浮固体、总溶解固体和总硬度。结果表明，这些湖泊的水质在可接受值范围内。然而，尽管在印度标准局规定的允许限度内，但所有三个湖泊的总溶解固体值都偏高。由于这三个湖泊都位于人口密集地区或附近，它们似乎都容易受到污染。
