Data and Statistics - Water Quality
Status of water quality in India – Reports by the Central Pollution Control Board for 2007, 2008 and 2009
This post presents reports on the status of water quality in India by the Central Pollution Control Board, Ministry of Environment and Forests for the years 2007, 2008 and 2009. These reports present the outputs of water quality monitoring done under the project on Monitoring of Indian Aquatic Resources (MINARS). This helps in evaluating the nature and extent of pollution control required, and effectiveness of pollution control measures already in existence. It also helps in drawing the water quality trends and prioritising pollution control efforts.
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Water quality hot-spots in rivers of India – A report by Central Water Commission
This report by the Central Water Commission (CWC) attempts to provide the water quality scenario of our rivers and evolve 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.
Read MoreEnvironmental monitoring programme on water quality in Kerala – A report by KSCSTE and CWRDM
This report by the Kerala State Council for Science, Technology and Environment (KSCSTE) and Centre for Water Resources Development and Management (CWRDM) on water quality monitoring in Kerala covers all its forty four river basins. This is being done under the “Environmental Monitoring Programme on Water Quality” under which samples are being collected both from surface and groundwater sources.
Groundwater sampling stations were fixed after conducting a sanitary survey in the panchayats. Water Quality Information System is being developed using Geographical Information Systems (GIS) to manage the water quality from point or non-point source of pollution.
In the first phase of the project, three river basins of Kerala viz. Kabbini, Periyar and Neyyar were monitored. The network was later expanded to basins such as Chaliyar, Kadalundi, Meenachil, Karamana, Anjarakandi, Pamba, Muvattupuzha, Bharatapuzha, and Chalakudy.
Read MoreAssessing variability of water quality in a groundwater-fed perennial lake of Kashmir Himalayas using linear geostatistics – A paper in Journal of Earth System Science
This paper in Journal of Earth System Science presents a study on Manasbal lake, which is one of the high altitude lakes in the Kashmir Valley, India. The study of the hydrochemistry of the Manasbal lake was done to find out whether the lake water was fit for drinking, irrigation and other purposes.
Read MoreWater quality status of rivers in India – Report of Central Water Commission
These River Water Quality Reports prepared by the Central Water Commission (CWC) summarise the river water data collected under its long term monitoring programme. The Central Water Commission monitors water quality at 371 key locations covering all the major river basins of India by maintaining a three tier laboratory system for analysis of 41 water quality parameters.
Read MoreDepartment of Drinking Water and Sanitation – Information on water and sanitation in India
The website of the Department of Drinking Water and Sanitation, Goverment of India, along with its associated MIS website, are a very rich source of information and data regarding rural water and sanitation in India. A huge number of links are present on these sites which provide access to various data and information regarding the status of rural drinking water & sanitation and related government projects.
Read MoreGanga water quality trend - A report by Central Pollution Control Board (2009)
Water quality of the Ganga as it passes through various states is presented in this document. The data has been collected over a period of many years from 39 water quality monitoring stations along the main river and 102 stations on its tributaries which were setup in 2008/09.
The study focuses on the parameters for dissolved oxygen, (DO), biochemical oxygen demand (BOD) and faecal coliforms (FC) as these indicate the biological health of the river. The period of study for the river Ganga is 1999-2008. The study finds that most of the water quality parameters studied do not meet the standards.
Read MoreGuidance manual for drinking water quality monitoring and assessment - A document by NEERI and NICD
In order to safeguard the health of the people, drinking water must meet quality standards. The main issues involved in drinking water safety are water quality management, surveillance and control mechanisms.
Levels of contaminants need to be ascertained through standard procedures. Each agency involved in water supply in India, has its own laboratory test practices and this manual details methods for all parameters adoptable by all laboratories.
Water safety plan: A manual for pilot study areas of Hyderabad
The most effective means of consistently ensuring the safety of drinking water supply is through the use of a comprehensive risk assessment and management approach, that encompasses all steps in water supply from catchment to consumer. Such approaches are called Water Safety Plans (WSPs).
The aim of a WSP is to organize and systematize records of management practices applied to drinking water and to ensure workability of such practices to organized drinking water supply. Read More
Assessing acute Gastroenteritis risks associated with water quality and sanitation in Hyderabad city - A paper by the Institute of Health Systems (IHS)
The quality of drinking water is a vital element of public health and well-being. The most effective means of consistently ensuring the safety of a drinking-water supply is through the use of a comprehensive risk assessment and risk management approach that encompasses all steps in water supply from catchment to consumer.
WHO guidelines on water quality term these approaches as water safety plans (WSPs), developed to organize, systematize and apply management practices in drinking-water quality.
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