Air Pollution | Centre for Science and Environment

Air Pollution


Dhaka – Delhi: Greasy tale of fuel pricing

It was a proud moment and a powerful statement when Dhaka rolled out a bedecked iconic cycle rickshaw on the opening day of the World Cup cricket. This is perhaps the only capital city in our region that can boast of zero emission areas with majority walking or on cycle rickshaws. Yet cars, only 10 per cent of all wheeled trips, bring this city to a grinding halt daily – traffic jams are as bad as we see in the worst of times in Delhi. Jam-struck on Dhaka’s roads, I understood, what warped fuel pricing can do to our cities of South Asia, and, wondered why our finance minister has not figured that out yet?

Smog Digest

Smog digest is a news service on vehicular pollution based on news clippings selected from leading Indian newspapers and newsmagazine. It also highlights the key developments from South Asian countries. The months witnessed lots of action and developments on the vehicular pollution front in India.

Sponge iron’s dirty growth

In the years to come, India's expanding steel production will be largely driven by sponge iron. Sponge iron, also known as direct reduced iron(DRI), is produced from direct reduction of iron ore (in the form of lumps, pellets or fines) by a reducing gas produced from natural gas or coal. Sponge iron gives a cheaper way of producing steel which has a high demand in the market. 

Dhaka CNG workshop photos

Experience Sharing Dialogue in Dhaka: Improving Quality and Performance of Natural Gas Vehicle Program in South Asia

Dhaka and Delhi met to discuss natural gas vehicle programme -- a unique opportunity for a clean up in the region where the mainstream technology of diesel and petrol are languishing. CSE-DOE event enthused all for a more robust CNG strategy for cleaner air.

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Front Page Teaser: 

Dhaka and Delhi met to discuss natural gas vehicle programme -- a unique opportunity for a clean up in the region where the mainstream technology of diesel and petrol are languishing. CSE-DOE event enthused all for a more robust CNG strategy for cleaner air.

Winter pollution is back with a difference. City now faces the threat of multiple pollutants going up together

  • Not only are the tiny particles choking us, nitrogen dioxide levels have worsened; daily peaks of carbon monoxide are unacceptable, ozone pollution has persisted through the winter months. This has emerged from the official public information system on daily air pollution and monitoring. Some of these pollutants come predominantly from vehicles.

Tracking Winter Pollution in Delhi 2010

Time to breath easy is over, air pollution is reaching critical levels again this winter. CSE has reviewed the daily air quality data generated by the Central Pollution Control Board and others.
(Air pollution facts. pdf)

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Chhattisgarh: Industrial Jungle

CSE released its cover story on the rapid industrialisation in Chhattisgarh on November 15, 2010 at Raipur, Chhattisgarh. The event was organised by Ekta Parishad. The cover was based on a detailed analysis of the proposed industries in the state, their land and water requirement and whether that state will be able to meet this requirement.

Cloud view clears up

By: Smriti Sharma

Origin of aerosols dictates cloud shape

How cloudy is it outside? The answers may depend on the level of atmospheric pollution in one’s region. Cloud-forming microscopic particles, called aerosols, absorb and reflect solar radiation. These particles have the ability to modify cloud formation and encourage or suppress precipitation. They can be released from manmade sources like vehicles, industry, agriculture, and natural sources like sea salt, volcanic dust, sulphates from biogenic gases.

Be the change

Change is possible in our cities.  Public action has made this possible. Unhealthy air pollution spikes are lower in cities in the lead. They have saved lives. 

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