In past 5 years since the last report on inventorisation of STPs was released in 2015, substantial sewage treatment capacities have been added. However, still a vast gap remains in sewage generation and
This report presents the environmental profiles of metropolitan cities and problem areas identified by CPCB and their groundwater quality status. The groundwater quality data obtained during survey were evaluated against drinking water quality requirements [BIS 10500, (1991) & WHO (1996) Standards]. Salinity, nitrate, Coliform & Fluoride are the main water quality issues in the metro cities and problem areas of the country.
Urbanisation in India is more rapid in and around National Capital as well as the State Capitals and, over the years, these cities have become major centers for commerce, industry and education. Enormous increase in number of vehicles has resulted in increased emission of air pollutants and, as a result, levels of air pollutants such as respirable suspended particulate matter are found to exceed the prescribed standards in these cities.
The Central Pollution Control Board in exercise of its powers conferred under section 16(2) (h) of the Air (Prevention and Control of Pollution) Act,1981 (14 of 1981) notify the National Ambient Air Quality Standards, 1994.
The existing legislation though covers adequate provision empowering the State Boards to prescribe stringent emission/ discharge standards while issuing the consent under the Water Act/Air Act, the judgments presently made by the SPCBs appear to be based on their respective experiences in qualitative terms for specifying stringent standards on a case to case basis.