Contamination, Pollution and Quality

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Featured Articles
September 5, 2024 The current state of play regarding sewage treatment standards in India
Clogged pipes: India's sewage treatment crisis (Image: Trey Ratcliff, Flickr Commons; CC BY-NC-SA 2.0)
September 2, 2024 Recommendations made by an expert committee, the NGT's subsequent orders, and a critical analysis of these developments
Drum screens at Bharwara sewage treatment plant (Image: India Water Portal)
August 30, 2024 This article traces the evolution of the legislative framework for water pollution in India and its implications for wastewater treatment standards in the country. 
Open drains in Alwar (Image Source: IWP Flickr photos)
August 22, 2024 The journey of sewage treatment standards and the challenge of treating India’s growing wastewater
Need to fix wastewater effluent standards (Image: Kristian Bjornard)
August 1, 2024 Recognising the limitations of relying solely on herbicides, a strategic shift towards preventive measures is crucial
Relying solely on chemicals to keep weeds at bay isn't sustainable and can harm the environment. (Image: Needpix)
June 12, 2024 Leveraging research to optimise water programs for improved health outcomes in India
Closing the tap on disease (Image: Marlon Felippe; CC BY-SA 4.0, Wikimedia Commons)
Technologies for lake restoration: A paper from Helmut Klapper on water quality and restoration of lakes
A paper on economical and ecologically safe technologies that will greatly enable restoration of lakes Posted on 20 Aug, 2009 03:46 PM

Download this guide to technologies which can assist you in your goal to restore lakes.

Read more on the Journal of Limnology

Incidence of fluorosis: Map showing states affected by fluorosis in india
Incidence of fluorosis has reached alarming levels in certain pockets of the state while the problem is acute in the states of Andhra Pradesh, Rajasthan and Gujarat Posted on 19 Aug, 2009 12:44 PM

These two maps indicate the percentage of districts affected by fluoride, in each state of the country and also gives data of the range of fluoride concentration in drinking water in each state.

Map: Fluoride in groundwater in Asia
International Groundwater Resources Assessment Centre has mapped available fluoride data for all continents and have come up with this series. Posted on 19 Aug, 2009 12:30 PM

For Asia, this map indicates the probability of occurrence of excessive concentrations of fluoride in groundwater, on a scale of high-medium-low.

Map: International Groundwater Resources Assessment Centre's global overview of salinity in groundwater
This map consists of a description, characterization and geographical delineation (map) of global occurrences of saline groundwater Posted on 19 Aug, 2009 10:20 AM

In India, salinity has three types of genesis - one, by dissolution (areas concentrated in Kutch, North Rajasthan and bordering Punjab, South Rajasthan and bordering areas of Madhya Pradesh and parts of Western Uttar Pradesh; two, by irrigation (areas concentrated in the Deccan Peninsular region of Andhra Pradesh, Karnataka and Tamil Nadu) and parts of Orissa and West Bengal; and three, by late

Map depicting the salinity affected areas in India
This map indicates the extent of salinity affected areas in the coastal states of the country Posted on 18 Aug, 2009 12:52 PM

The map shows that Tamil Nadu, Kerala, Karnataka, Goa, Maharashtra and Gujarat are high salinity zones, and Andhra Pradesh, Orissa and West Bengal are moderate salinity zones.

Click here to view the map - IRFC

Chemical parameters in Karnataka's groundwater: A report by the state government's Mines and Geology department
This report by the Department of Mines and Geology (Government of Karnataka) deals with excess chemical parameters in groundwater in the state Posted on 14 Aug, 2009 02:15 PM

The aim of this report is to highlight the quality problems encountered in the groundwater in the state. The chemical parameters which are present in groundwater in excess of the prescribed norms and which are considered harmful beyond permissible limits are discussed in detail.

Status of groundwater quality in Bangalore: Conducted by the Department of Mines and Geology, Government of Karnataka
This study on the status of groundwater quality in Bangalore by the Department of Mines and Geology presents an analysis based on a systematic collection of groundwater samples from the city Posted on 14 Aug, 2009 01:47 PM

The study collected 918 samples from 735 locations across an area of 400 square kilometers of the city and its environs. The samples were collected in March and April of 2003. Testing was done for 25 parameters. The results indicate that -

Bacteriological quality of water samples of a tertiary care medical center campus in North Western Himalayan region
Studies conducted in the North Western Himalayan region have found that surface and groundwater samples are highly contaminated with faecal matter in the region Posted on 14 Aug, 2009 11:53 AM

A study published in the The Internet Journal of Third World Medicine of bacteriological quality of water samples of a tertiary care medical center campus in North Western Himalayan region, more specifically in Kangra district of Himachal Prad

Baseline report: Sachetana Drinking Water project of the Government of Karnataka (2006-2011)
The project envisions a set of interventions including household rainwater harvesting for clusters of villages in Karnataka that are particularly severely affected by fluoride Posted on 14 Aug, 2009 11:28 AM

The Sachetana Drinking Water project of the Government of Karnataka covers 15 villages in each of the taluks of Bagepalli (Chikkaballapur), Mundargi (Gadag), Sira (Tumkur) and Pavagada (Tumkur).

The baseline survey covers a representative portion of the villages and families of the above and contains the following information:

Groundwater contamination near the Union Carbide plant at Bhopal: a draft research report
The idea of this monitoring was to test the probability of toxic wastes leaching from Union Carbide plant into the groundwater Posted on 13 Aug, 2009 02:54 PM

This draft research report by the People’s Science Institute (PSI), Dehradun deals with groundwater contamination near the Union Carbide plant at Bhopal. The main objective of PSI's monitoring exercise was to assess the degree of groundwater contamination, if any, in the vicinity of the erstwhile UCIL plant particularly in the context of the huge quantum of the ill-contained toxic wastes lying unheeded inside.

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