Almora sees springs vanish, river die

Lakes are usually an integral part of a drainage basin. Lakes are either fresh water or salt water lakes. Kolleru lake is the largest freshwater lake in South India. Various physical and chemical inputs manifested through the hydrology of the catchment area will affect the quality and quantity of lake water.

Ground water samples were collected from 18 wards of Coimbatore city south zone, among which 2 samples were collected from 2 different locations from each ward, totaling 36 samples.

Ground and well water samples were collected from Manchankoppu, Tiruchirappalli district. Physical parameters, such as temperature, odour, taste, turbidity, pH and conductivity and chemical parameters and compared with ISI, WHO and USPHS. Sulphate, silicate, phosphate, nitrite and nitrate contents were also analysed.

Changes in local ecology and economy have a direct impact on food security for the poor