Gomathinayagam P, Davis A S, Hatha A A, Lakshmanaperumalsamy P
Department of Environmental Sciences, Bharathiar University, Coimbatore-India.
Zentralbl Hyg Umweltmed. 1994 Oct;196(3):279-83.
Multiple Antibiotic Resistance (MAR) index of faecal indicator bacterium Escherichia coli, isolated from water and sediment in the Bhavani river was employed to assess the quality of the river, and the risk of contamination. The MAR index of all the stations exceeded the high risk level (0.250) of contamination. The study of MAR index for individual isolates also showed high resistance against the tested antibiotics and it was found that these antibiotic resistant E. coli were distributed throughout the length of river sampled. It is concluded that the river is contaminated with faecal enteric bacteria, originating from high risk sources such as night soil, commercial poultry farms etc. It is implied that the quality of river water is not safe for drinking purpose and that adequate measures may be taken before use.
从巴瓦尼河的水和沉积物中分离出的粪便指示菌大肠杆菌的多重抗生素抗性（MAR）指数，被用于评估该河流的水质以及污染风险。所有监测站的MAR指数均超过了污染的高风险水平（0.250）。对单个分离株的MAR指数研究也表明，它们对所测试的抗生素具有高度抗性，并且发现这些抗生素抗性大肠杆菌分布在所采样河流的全长范围内。研究得出结论，该河流受到粪便肠道细菌的污染，这些细菌源自诸如夜粪、商业家禽养殖场等高风险来源。这意味着河水质量对于饮用而言不安全，在使用前可能需要采取适当措施。
