CSE | Centre for Science and Environment

CSE


Mercury: Heavy Toxin

Mercury is a very toxic and dangerous substance. It is  poisonous in all forms - inorganic, organic or elemental. Mercury is a proven neurotoxin. Inhaling mercury vapours can severely damage the respiratory tract. Sore throat, coughing, pain or tightness in the chest, headache, muscle weakness, anorexia, gastrointestinal disturbance, fever, bronchitis and pneumonitis are symptoms of mercury toxicity. Health concerns should be reason enough for us to properly manage its imports and disposal. On the contrary, mercury has come to severely contaminate land, water, air and the food chain throughout India.

Capturing Rainwater

A way to augment Chandigarh’s water resources

CSE has submitted a report on city wide rainwater harvesting for Chandigarh as a part of its work as Centre Of Excellence under the Ministry of Urban Development. Chandigarh does not have any surface water source and there is a steep decline in the groundwater levels in the city. The city has very few options for sourcing water, recharging the confined aquifers from where water is being tapped becomes a necessity. Every summer, newspaper reports quote residents residing on the second and third floors in the southern sectors of the city complaining about the shortage of drinking water.

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Wastewater recycling

The wastewater recycling system at CSE has been designed to treat 8000 litres per day based on the assumption that at any given moment at least a 100 persons would be ocupying the premises. The components involved in treatment are a settler, a baffled reactor and a planted filter.

The treated wastewater is stored in an underground sump. This water is used for gardening.

Old Mirrors Traditional Ponds of Kolkata

Kolkata Municipal Corporation (KMC) has come up with a book on ponds of  Kolkata called "Old Mirrors-Traditional ponds of Kolkata" in the begining of this year. The author of the book is Mohit Ray. Ray is the founder director of a Kolkata based non profit organization, Vasundhara. He has documented 48 ponds of Kolkata. The age of some ponds is 250 years and 24 of them are 200-300 years old.  He had studies all the 48 ponds in details. He gave an elaborate history of the ponds and along with that he researched out the present conditions of these water bodies.

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Environmentalists fighting to save the Ousteri lake

Ousteri lake (Osudu lake) is one of the examples in the history of deterioration of wetlands where a long wait for the final judgment is taking the lake towards a slow death process.

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Presentations March 5, 2010

National Research Conference on Climate Change

 


 

National Research Conference on Climate Change

Indian Institute of Technology Delhi (IITD), Indian Institute of Technology Madras (IITM), and the Centre for Science and Environment (CSE) organized the National Research Conference on Climate Change at IITD on March 5 and 6, 2010.  

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Front Page Teaser: 

Date: March 5 and 6, 2010

Organized jointly by IIT Delhi, IIT Madras, and Centre for Science and Environment.

Catching water where it falls

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Background

The total area of the Centre for Science and Environment (CSE) building is 1,000 sq. m. The office gets most of its water supply from groundwater through its borewell. The rainwaterwater harvesting system was installed in the building in June 1999.


Rainwater available for harvesting

Average annual rainfall in Delhi - 611 mm (24 inches).

Solar energy

CSE solar panels

The hybrid solar power system in the Centre for Science and Environment acts as an on-line uninterrupted power supply (UPS) system, providing stable power to all the electronic appliances.

120 solar modules are mounted on a space frame over the front twin-pillar supported pergola of the CSE building. The remaining 20 are installed over the CSE canteen roof.

 Components

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