While the government has launched GAP to purify the Ganga, individuals like Supreme Court advocate V C Mehta have also played an important part. Mehta has sought the intervention of the apex court to contain Ganga Pollution. According to him, his seven ye

Kanpur residents drank untreated water as the city's water works, supposedly, did not have the funds to buypurifiers.

WATER QUALITY CRITERIA Water class Criteria A Drinking water without treatment: Faecal coliforms: 50 MPN / 100 ml (max); DO: 5 mg/1

"The story of the Ganges, from her source to the sea, from old times to new, is the story of India"s civilisation ..." - Jawaharlal Nehru

The Kandy lake, situated in the heart of Sri Lanka's second largest city with a population of nearly 120,000, has been monitored to probe the extent of heavy metal pollution. Although the lake is a source of drinking water to the city, a large number of effluent canals drain into the lake carrying a continuous flow of industrial and domestic waste matter. A total of 66 surface water samples were analyzed for their Fe2+, total Fe, total V, SO 4 2− , Cd2+, and Pb2+ contents.

Two drinking water lakes of Hyderabad - Osman Sagar and Mir Alam, were studied for their chemistry for two years (1977-78). Mir Alam, the older of the two, showed higher silicate content. Dissolved component formed 91-27% of the total silicate content in these lakes.

The mid-canal of Kandy, a 8-km effluent canal that runs through the city, collects massive quantities of domestic, municipal, and agricultural waste products. In this study, 37 samples from canal water and 13 from nearby drinking water wells were analyzed for their total Pb, Cd, V, Fe, and ferrous ion content. The following average values for the canal water were recorded: Pb, 269 μg/liter; Cd, 138 μg/liter; V, 18 μg/liter; total Fe, 4 mg/liter. These values indicate the relative levels of metal input from the effluent sources of the city of Kandy, the second largest city in Sri Lanka.