Contamination, Pollution and Quality

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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)
Development of training module for water safety plan in urban areas - A document by ESCI
A new Risk Management tool to improve Water Safety Plan
Posted on 20 Apr, 2011 03:48 AM

A Water Safety Plan (WSP) is an improved risk management tool designed to ensure the delivery of safe drinking water. It identifies hazards, means to control them, means and actions to identify loss of control and its restoration. It comprises system assessment and design, operational monitoring and management plans (including documentation and communication). Water quality guidelines have been issued by the WHO.

Guidance manual for drinking water quality monitoring and assessment - A document by NEERI and NICD
Drinking water must meet Quality! Safeguarding the health of People. Posted on 20 Apr, 2011 03:09 AM

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.

Drinking water quality monitoring and development of surveillance mechanisms - A pilot study done by NEERI in New Delhi
The guidelines on drinking water quality aim to protect public health and ensure this is through the adoption of Water Safety Plans Posted on 20 Apr, 2011 02:30 AM

The WHO guidelines for drinking water quality aim to protect public health and the key way to ensure this is through the adoption of Water Safety Plans (WSP). WSP includes setting of health targets, risk analysis and its assessment to identify priority hazardous scenarios and management of the risk.

Water safety plan: A manual for pilot study areas of Hyderabad
The aim of this manual is to facilitate development of Water Safety Plans focusing particularly on organized water supplies managed by a water utility. Posted on 20 Apr, 2011 02:03 AM

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.

Guidelines for water safety plans for rural water supply systems - A document by SIAES and WHO India (2009)
Delivery of safe drinking water is vital for protecting public health and of promoting more secure livelihoods. Posted on 20 Apr, 2011 01:10 AM

HandpumpDelivery of safe drinking water is vital for protecting public health and of promoting more secure livelihoods.

The traditional approach to water quality and safety management has relied on the testing of drinking water, as it leaves the treatment works or at selected points, either within the distribution system or at consumer taps. It is referred to as ‘end‐product testing’.

Application of Composite Correction Program for improvement in efficiency of water treatment plants - A WHO paper
Safe drinking water, sanitation, water purification, secured supply, are all unchecked on goals' checklist; emphasizing on the need of intricate tools and plans and their implementation. Posted on 20 Apr, 2011 12:41 AM

The goal of safe and affordable drinking water and sanitation has not yet been achieved. The current practices of water purification are inadequate to produce secured water supply. Maintaining health protection at water supply systems has become more challenging with resistance of some pathogens to disinfection using chlorination and an increase in the immuno-compromised population (e.g., people with HIV, organ transplant patients, the elderly).

In this context, it has become essential to develop various tools such as Composite Correction Programme (CCP) and Water Safety Plans (WSP) to improve water purification and distribution systems, to achieve the goal of providing safe drinking water.

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. Posted on 19 Apr, 2011 11:35 PM

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.

Vedanta’s red mud pond leaks into Vamsadhara river, Lanjigarh, Orissa - A Down To Earth report
Reports from Lanjigarh say a crack in the western part of the red mud pond of Vedanta Alumina refinery has leaked into the Vamsadhara river. Posted on 18 Apr, 2011 05:23 PM

This happened following a thunder burst on April 5.

According to Mahammad Ashlam of KBK Samachar, the local news agency, the downpour lasted 45 minutes and resulted in a huge run-off of the toxic waste into nearby water bodies from a crack in the pond wall of the one-million-tone refinery. Red mud or bauxite residue is a waste product of the alumina manufacturing process.

CPCB announces awards scheme for writing books in Hindi about pollution control and environmental planning and management (2011)
Posted on 15 Apr, 2011 01:24 AM

प्रदुषण नियंत्रण और पर्यावरण योजना एवं प्रबंधन से सम्बंधित विषयों पर हिंदी में मौलिक पुस्तक लेखन के लिए पुरस्कार योजना वर्ष - २०११

अधिक जानकारी के लिए, फाइल अटैचमेंट देखे:

Arsenic and chromium hyper-accumulation by an ecotype of Pteris vittata - Possibility of remediation of contaminated water and soil – A paper in Current Science
The remediation of arsenic and chromium contaminated soil and water has become an important environmental issue. Posted on 14 Apr, 2011 08:04 PM

Pteris vittataThis study by National Environmental Engineering Research Institute published in Current Science was carried out to identify Pteris vitta and test its hyper-accumulating properties. The plant is commonly known as the Ladder brake fern or Chinese brake fern plant in India, and had been reported elsewhere as an arsenic hyper-accumulator.

.The remediation of arsenic and chromium contaminated soil and water has become an important environmental issue. It is in this context that the discovery of hyper-accumulator plant species, which have the unusual ability of accumulating metals such as arsenic (As), chromium (Cr), zinc (Zn), nickel (Ni) and copper (Cu) to very high concentrations, has further boosted technologies based on this property.

This is the first report of characterization of arsenic accumulation in an Indian ecotype (plant), which also shows chromium hyperaccumulation in addition to arsenic. Intact plantlets were grown in 20 per cent Hoagland solution amended with up to 200 mg arsenic or chromium medium. Plants absorbed and accumulated a significant amount of arsenic and chromium in their biomass with high bio-enrichment factor. Arsenic and chromium tolerance by spores and gametophytes under in-vitro was also assessed.

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