Biological Pollution

This draft report on the study of lakes by the World Wildlife Fund for Nature (India) documents the physical condition of the lakes in Mumbai. Apart from the three lakes - Tulsi, Powai and Vihar that used to provide water to Mumbai residents, there are many lakes in the Bombay Municipal Corporation jurisdiction that are either polluted by human sewage or industrial effluents and have remained neglected with increasing urbanization.

There is very little to no data available on the existence of lakes of Mumbai. Several RTI’s to the government bodies also revealed that there was a lacuna in terms of the availability of the data; as a result most of the water bodies are easily exploited. Under this study the baseline data was prepared with the help of Google Earth website. The areas appearing to be lakes were marked on the Google Earth Images. These were verified by the field staff through onsite visits. The survey was conducted during September and October, 2008 and March, 2009. The study considers only the fresh water lakes which were accessible and saline water impoundments have not been considered.

This report presents the findings of a study conducted by CPCB with the help of Indian Institute of Technology, Roorkee and Anna University, Chennai  on the performa

This study was commissioned recognizing the fact that discharge of untreated sewage occurs not only because of inadequate installed capacity of sewage plants, but also due to the inadequate maintenance of existing plants.

The programme focused on community involvement in assessing and evaluating water quality.

Image courtesy: www.projectsmonitor.com

Under the Water (Prevention and Control of Pollution) Act, 1974, every industry has to provide adequate treatment of its effluents before disposal, irrespective of whether it is in stream, land, sewerage system of sea. The small scale industrial units (SSI), which are presently defined as units whose plant and machinery are valued at less than Rs. 5 crore occupy an important place in the country's economy. The SSIs are a major contributor to the total industrial pollution load of the country. However, only a small fraction of the effluent discharge from these units is estimated to be treated as on date.

This evaluation report by the Indian Institute of Management (Lucknow) of the Central Pollution Control Board (CPCB), a central institution established to set environmental standards for all parts of the country focuses on strengthening of CPCB and its preparedness to undertake various measures as suggested by environmental statutes.

Guest post by: Usha Rajagopalan

This case study in National Institute of Science Communication and Information Resources (NISCAIR) by the Central Institute of Mining and Fuel Research (CIMFR), Dhanbad and the Geo-Environment Division (Environment Management Group) deals with groundwater quality assessment of Jharia coalfield area of West Bengal. The physiochemical characteristics of groundwater of the upper catchments of the coalfield were studied to evaluate the water quality.

This thesis by Christina Tang for the Center of Environmental Studies, Brown University deals with a study of water quality and attempts to ascertain the net benefits or costs from rainwater harvesting under a variety of scenarios for households in various water supply conditions.

Eighty percent of the 7,00,000 citizens of Kuttanad, a region in the coastal State of Kerala have no access to clean water. In Kuttanad, intensive untreated human sewage and agricultural activities have caused severe surface water contaminations. At the same time, other sources of freshwater are unreliable for drinking: groundwater is acidic due to the soil conditions and iron leaching; freshwater from public tap is infrequent; and water supply from private vendors is extremely expensive.

This report by United Nations Environment Programme (UNEP) reviews the importance of inland fisheries as an ecosystem service, the pressures upon them, and management approaches to sustain them and thus helps inform future approaches to conservation and management of freshwater ecosystems.

There is an urgent need for major investment in policy and management approaches that address the direct and indirect drivers of aquatic ecosystem degradation and loss of inland fisheries taking into account their role in sustainable development and human well being. The UNEP Ecosystem Management Programme (UNEP-EMP) provides an effective framework for pursuing this challenge.