A Comparative Study on Water Quality of Two Lakes of Metro City and Effective Remedial Measures, Mumbai. India

Abstract:

The essence of life is water. When it comes to their geological and geochemical properties, the rivers, lakes, and estuaries of the water bodies are continuously subjected to a dynamic state of change. The investigation on the levels of water pollution along the Powai and Vihar Lakes has been carried out. Seven sites on each of the two lakes were chosen for sampling. For two years, water samples have been taken during the summer, monsoon (pre-monsoon and post-monsoon), and winter seasons. A study has been done on the physico-chemical characteristics of water samples. Total dissolved solids, D.O., C.O.D., and B.O.D. have been measured in the water sample that was taken, along with temperature, pH, conductivity, and pH. BOD and non-biological oxidizable organic substances are included in the COD measurements. According to WHO regulations, the BOD to COD ratio for fresh water is less than 0.3, whereas the ratio for sewage-mixed, highly organically contaminated water is greater than 0.3. This phenomenon is readily demonstrated by a comparison of the water from Powai and Vihar lakes. Powai Lake's BOD and COD are significantly higher than Vihar Lake's. The discovery will be used as a starting point for further research and to understand how various contaminants behave in the ecosystem. Additionally, it will assist in determining the efficacy of corrective actions and in preventing and controlling the decline in the health of the lake ecosystem.