Abstract

In many parts of India, rivers and streams are the major source of water for household and irrigation purposes. Due to increased human population and industrialization, the water gets highly polluted as the sewage and household wastes, agricultural wastes, and other wastes from factories are directly discharged into the river. Pollution of river water can have harmful effects on living beings and makes water unsuitable for various needs. Thus, it is required to check the quality of water at well-ordered time intervals as the physical, chemical and biological parameters of the water will be changed. In this study, six samples from both Upper Bhavani River in Coimbatore district and Lower Bhavani River in Erode district were collected at various locations and examined for water quality parameters to know its suitability for various needs. Water samples collected were examined for water quality parameters such as electrical conductivity, alkalinity, dissolved oxygen, sulphate, chloride, hardness, turbidity and Biochemical Oxygen Demand (BOD). Based on the water quality analysis results, Water Quality Index was formulated. The overall quality of water was assessed using the WQI values and necessary solutions are suggested to improve the quality of water.

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