Contamination, Pollution and Quality

This document  by the Central Pollution and Control Board (CPCB) describes the findings of a study that evaluated water treatment plants located across the country, for prevailing raw water quality, water treatment technologies, operational practices, chemical consumptio

This study by Udayvani and Arghyam describes the findings of case studies undertaken by Udaywani to get a clear picture of the drinking water and toilet facilities in 8 Gram Panchayats of the 6 Districts of Karnataka following the ASHWAS survey conducted by Arghyam that included a survey of Household Water and Sanitation in 172 Gram Panchayats across 28 districts of Karnataka (all except Bangalore Urban).

The workshop was hosted by Government of Kerala and the Water and Sanitation Program, South Asia with the Government of India, The World Bank Institute and the World Bank was held at Cochin, Kerala from December 7th to December 8th, 1999.

This presentation  highlights the grave water situation in Bihar in the context of the emerging water quality and quantity issues that the world and especially developing countries will be facing in the near future.

The workshop aimed at possible replication and acceptability of KAF as a viable, low cost appropriate arsenic mitigation measure in the arsenic contaminated regions of the country.

It deals with issues around capital raising, policy framework, efficiency and sustainability and provides a way forward for strategic acceleration of the benefits.

 Organizer: National Environmental Engineering Research Institute (NEERI),

                         WHO Collaborating Centre for Water and Sanitation

Venue: National Environmental Engineering Research Institute (CSIR-NEERI), Nehru Marg, Nagpur – 440 020

National Environmental Engineering Research Institute (NEERI), Nagpur is devoted to research and innovations in environmental science and engineering besides solving a range of problems posed by industry, government and public. It is a constituent of Council of Scientific & Industrial Research (CSIR).

It evolves a methodology for identifying hot spots in Indian rivers. The water quality data is based on the average values observed during the last ten years (2001-2011) at 371 monitoring stations of CWC on almost all major, medium and minor rivers in India. In respect of Dissolved Oxygen and Biochemical Oxygen Demand, the Central Pollution Control Board's classification has been considered for evaluating the hot spot in the rivers.

The physical and chemical quality of river water is important in deciding its suitability for drinking purposes. As such the suitability of river water for potable uses with regard to its chemical quality has to be deciphered and defined on the basis of the some vital characteristics of the water. Bureau of Indian Standards (BIS) vide its document IS: 10500:1991, edition 2.2 (2003‐09) has recommended the quality standards for drinking water and these have been used for finding the suitability of river water. On this basis of classification, the natural river water of India has been categorized as desirable, permissible and unfit for human consumption.

This study published in the journal The American Journal of Tropical Medicine and Hygiene (AJTMH) aimed at assessing water contamination and the relative effectiveness of three options for point-of-use water treatment in South India.