Biological Pollution

Featured Articles
August 11, 2022 This could lead to water quality crisis reinforcing the need for basin-specific management strategies
Around the world, more than a fifth of nitrogen released by human activity ends up in aquatic ecosystems (Image: Wikimedia Commons)
July 14, 2022 The river is faced with the dual problem of flood plain encroachment and growing levels of water pollution
Illegal transverse check dams (Badhals) built on Ichamati near a village in Basirhat (Image: Prithviraj Nath @ TheWaterChronicles)
May 25, 2022 A study develops a decision support tool to identify polluted river stretches
Ulhas river near Khandpe village (Image: Ganesh Dhamodkar, Wikimedia Commons)
November 12, 2021 Mass fish deaths can pose a challenge to the environment, biodiversity and fisherfolk who depend on them for their livelihoods. Why do they happen?
Algal blooms in a pond in Tamil Nadu (Image Source: Wikimedia Commons)
August 4, 2021 Detritivores, scavenger organisms inhabiting freshwater bodies such as streams are crucial for the survival of water bodies. However, anthropogenic changes are killing them!
View of a s stream in Kerala (Image Source: Firos AK via Wikimedia Commons)
June 24, 2021 Freshwater ecosystems in India are known to harbour rich biodiversity, but their health is being increasingly challenged in recent years. And the East Kolkata Wetlands are no exception!
Fishermen use wastewater from Kolkata to rear fish (Image Source: India Water Portal)
Impacts of climate change on public health in India - Future research directions - Paper published in Environmental Health Perspectives
This paper discusses the observed relationships between climate variability and human health. Posted on 19 Feb, 2012 11:00 PM

This paper published in the journal Environmental Health Perspectives reviews the current state of the science relevant to the 2009 Joint Indo–U.S. Workshop on Climate Change and Health that was held in Goa, India, and, then discusses the observed relationships between climate variability and human health specifically in relation to the Indian subcontinent, highlighting future research directions.

The paper briefly summarises relevant literature on the impacts of climate change in India and touches upon the opportunities and significant challenges associated with designing, initiating, and conducting research, as well as pursuing related public health programming to improve public health infrastructure in the face of climate change. The paper argues that such research is needed to pave the way for unique and pioneering solutions that can improve public health in the face of increasing climate variability.

Understanding governance in WASH sector in Andhra Pradesh - A study by WASSAN
The paper examines the issue of water governance- its key elements, applicability, and influence on service levels. Posted on 18 Feb, 2012 03:38 PM

Problems in the water, sanitation and hygiene (WASH) sector have their roots in socio-political issues rather than in technology. This paper presents the report of a survey in 107 villages in rural Andhra Pradesh to illustrate the influence of governance systems.

contrasting pictures of a well maintained hand pump and one that is standing in a pool of dirty water

Stress of urban pollution on largest natural wetland ecosystem in East Kolkata - Causes, consequences and improvement
This paper looks at the impact of urban pollution on the Eastern Kolkata wetlands where fish farming is carried out. Posted on 14 Feb, 2012 10:23 AM

The impact of sewage pollution on these fish ponds and on the ecosystem is evaluated. Similarly, remedial measures to maintain water quality and to improve resource recovery efficiency are suggested.

Location map of the East Kolkata wetlands

Marine fisheries in India - Issues, opportunities and transition for sustainable development - A World Bank working paper
This working paper by the World Bank reviews the marine fisheries sub-sector. Posted on 14 Feb, 2012 10:03 AM

This working paper by the World Bank presents the findings of a study that was conducted as a collaborative initiative by the World Bank and the Department of Animal Husbandry, Dairyin

Living rivers, dying rivers: Rivers in the Western Ghats
The sixth lecture in the series titled "Living Rivers, Dying Rivers" was delivered by Parineeta Dandekar and Pandurang Hegde. Posted on 10 Feb, 2012 04:12 PM

River stories from Maharashtra: Many morals to learn 

Parineeta Dandekar’s presentation began with an account of some statistics related to Maharashtra, the third largest state in India. Regarding the state of water resources in Maharashtra, she noted that of the five river basin systems, 55 percent of the dependable yield is available in the four river basins (Krishna, Godavari, Tapi and Narmada) east of the Western Ghats. These four river basins comprise 92 percent of the cultivable land and more than 60 percent of the population in rural areas. 45 percent of the state's water resources are from west flowing rivers which are mainly monsoon specific rivers emanating from the Western Ghats and draining into the Arabian Sea.

With 1821 large dams and more in the offing, Maharashtra has the maximum dams in the country (35.7%). However, the proportion of gross irrigated area vis a vis the gross cropped area at 17.8 percent is much lower than the national average of 44.6 percent. The contradictions from the state, which is home to the highest number of dams, were discussed. In nearly 70 percent of the state’s villages (around 27,600 villages), water is either not available within 500 metres distance, or within 15 metres below ground level or when available is not potable (World Bank, Promoting Agricultural Growth in Maharashtra, Volume 1, 2003).

Dandekar discussed the World Bank funded Maharashtra Water Sector Improvement Project (MWSIP) initiated in 2005 whose main components were establishment, operationalisation and capacity building of Maharashtra Water Resources Regulatory Authority (MWRRA); establishment of river basin agencies in Maharashtra; and restructuring and capacity building of the Water Resources Department. The MWRRA Act (2005) has been amended, taking out the clause for equitable water distribution, and granting the Cabinet the rights to have the last say about water entitlements. This has led to a diversion of water for irrigation from the vulnerable, suicide-prone Vidarbha region to thermal power plants. According to Prayas, “entitlements of more than 1500 MCM have been changed from agriculture to industries and cities”.

 

Free flowing stretch of river Seetha Nadi in the Western Ghats (Source: SANDRP)
"Bottle it up: We can use it" - Scientific studies on human urine - A presentation by Arghyam
This presentation deals with the issue of reuse of human urine in agriculture. Posted on 10 Feb, 2012 11:13 AM

This presentation by Arghyam includes the results of doctoral study done by G Sridevi under the guidance of Prof.

Safe water dissemination workshop by PATH held on January 19-20, 2012 at New Delhi
PATH organized a Dissemination Workshop of its Safe Water Project at India Habitat Centre, New Delhi on January 19-20, 2012. Posted on 07 Feb, 2012 10:15 PM

Guest post: Amita Bhaduri

Through the Safe Water Project, it is seeking complementary solutions to sustainability and scale-up by exploring the potential for commercial enterprises to produce, distribute, sell, and maintain Household Water Treatment and Storage (HWTS) consumer products to low-income populations. The workshop shared learnings and tools from PATH’s Safe Water Project and presented the experiences of other organizations that are leveraging market-based approaches to achieve a sustainable public health impact.

WASH

Water quality monitoring of lakes in and around Bangalore city
This report by the Karnataka State Pollution Control Board (KSPCB) both in Kannada and English highlights the deteriorating condition of the lakes in and around Bangalore city. Posted on 07 Feb, 2012 03:05 PM

It describes the efforts undertaken by the Karnataka State Pollution Control Board to launch a programme to monitor the water quality of some of the lakes in Bangalore so as to focus the attention of concerned governmental organisations to take up remedial measures to safe guard the water bodies of the "Garden City". 

The sources of pollution in lakes are mainly identified as:

Nutrient-based fertiliser subsidy: Will farmers adopt agricultural best management practices? An article in EPW
The new nutrient-based fertiliser subsidy policy provides implicit incentives to farmers to test soil samples regularly and get crop-wise recommended doses of nutrients. Posted on 06 Feb, 2012 11:58 AM

It offers prospective benefits from the agro-environmental management point of view.

Solar and wind based freshwater, saltwater and brackish water purification systems
This article presents how Trunz water systems has converted the vision of a simple self-sufficient water treatment system into practice. Posted on 05 Feb, 2012 07:12 PM

Article Courtesy: Trunz Water Systems