GIS based approach for the assessment of water quality of the biodiversity heritage site of India - the Ameenpur lake, Hyderabad

Abstract

Ameenpur Lake, the Biodiversity Heritage Site of India is the first urban lake to be given the status of a heritage site by the National Biodiversity Authority of India in the year 2016. In the present study, the water quality of Ameenpur Lake has been carried out using GIS technology. The water samples were collected during Pre-Monsoon, Monsoon and Post-Monsoon seasons of the year 2019-20 and analysed for various physico-chemical parameters such as pH, Electrical Conductivity, Total Dissolved Solids, Turbidity, Total Hardness, Total Alkalinity, Calcium, Magnesium, Sodium, Potassium, Chloride, Sulphates, Carbonates, Bicarbonates, Fluorides, Phosphates, Nitrates, Dissolved Oxygen, Chemical Oxygen Demand and Biological Oxygen Demand in the laboratory using American Public Health Association1 standard methods for water and wastewater treatment. Obtained results were compared with Bureau of Indian Standards. The results indicate that lake water is slightly alkaline in nature and most of the parameters were exceeding the permissible limits in all the three seasons. Statistical analysis has been used to calculate the correlation coefficient of different parameters. The correlation matrix shows that total alkalinity has significant correlation with calcium and magnesium, EC with chlorides, nitrates and fluorides, total hardness with calcium, magnesium, bicarbonates and total alkalinity and bicarbonates with calcium.