CSE | Centre for Science and Environment

CSE


RWH Project

Traditionally, water was seen as a responsibility of citizens and the community collectively took the responsibility of not only building but also of maintaining the water bodies. Since independence, the government has taken control over the water-bodies and water supply.

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Components of Rainwater Harvesting system

A rainwater harvesting system comprises components of various stages - transporting rainwater through pipes or drains, filtration, and storage in tanks for reuse or recharge. The common components of a rainwater harvesting system involved in these stages are illustrated here.

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HEALTH IMPACTS: WATER POLLUTANTS

 

Physico-chemicals parameters and their significance

HEALTH IMPACTS: AIR POLLUTION

 

Major air pollutants and their associated health hazards

HEALTH IMPACTS: PESTICIDES

 

Application and health effects of pesticides commonly used in India

 
S.No. Pesticide Name

What it is used for

About Delhi’s water

The quality of ground water is alkaline with pH ranging from 7.1 to 9.2, chloride content ranges between 21 and 1380 ppm. South of Delhi average chloride content is 250 ppm while in Najafgarh area it is around 1000 ppm rendering the water saline covering the area of 32 km. Sq. and marginally saline over the area of 129 sq km.

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Where is the lake?

The Bellandur Lake is in the news nowadays because the Lake which once acted as a major source of water to the city of Bangalore, Karnataka has now been converted to a sewage drain completely. The dumping started in the late 90’s when the people of the region started depending on river Cauvery for their water requirements.

METHODOLOGY: AIR POLLUTION

Pollutants Methods of Measurement BIS Method No. Time Weighted Average
Suspended Particulate Matter (PM100) Respirable Dust Sampler IS- 5182 (part 4) 1973 24 hourly

METHODOLOGY: PESTICIDES

Pesticides Protocol Instrument Model Detectors
Insecticides
Organochlorines
Organophosphorus
SyntheticPyrethroides
Carbamates
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