Urban Air Quality | Centre for Science and Environment

Urban Air Quality


Status of implementation of CNG as a fuel for urban buses in Delhi

On April 1, 2001, there was mayhem in Delhi. Not many buses were plying on the roads as the Supreme Court ruling on moving the entire public transport fleet to
CNG, came into effect. Unfortunately this had not been complied with. Without diluting the original order the Supreme Court only allowed a conditional extension of the deadline till September 30, 2001. Download report...

Diesel hides behind CNG

What’s going on? First the key partners of the Central Pollution Control Board -- IOC, and NEERI -- involved with yet to be released source apportionment study made claims publicly that LPG is the most polluting fuel in our cities. Now in quick succession a second study follows from CPCB that ranks CNG as the “worst” fuel and Euro II-III diesel as the “best”. No other government in the world has every branded CNG as worse than Euro II-III diesel.

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What’s going on? First the key partners of the Central Pollution Control Board -- IOC, and NEERI -- involved with yet to be released source apportionment study made claims publicly that LPG is the most polluting fuel in our cities.

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.

Urban Transport Strategies: Agenda for Reforms

An orientation programme for policy makers

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Date: July 28 – 30, 2011

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