You are here: Home » Economy & Policy » News
Business Standard

Siam demands independent study on Delhi air pollution

Ajay Modi  |  New Delhi 

Claiming vehicles contribute only partly to the poor air quality in Delhi, the Society of Indian Automobile Manufacturer (Siam) has demanded a comprehensive and independent study into the causes.

The demand from Siam comes in the wake of the National Green Tribunal’s order banning over 10-year-old diesel vehicles from plying in Delhi and the National Capital Region. The ban has been stayed till July 13.

“The various official and non-official studies conducted over the years have shown widely varying results that were inconclusive and did not help in policy decisions,” said Vikram S Kirloskar, president, Siam and vice-chairman of Toyota Kirloskar Motor. There is no doubt that vehicles add to pollution as they burn fossil fuel, but their contribution has reduced over the past decade due to higher emission norms, he added.

The Central Pollution Control Board (CPCB) Source Apportionment Study of 2011 found the transport sector contributes less than seven per cent of total particulate matter (PM10) in Delhi. Studies and papers prepared by Indian Institute of Technology, jointly by international institutes like University of Birmingham, Central Road Research Institute and the Desert Research Institute of US, quantified the contribution of road traffic to PM2.5 emission in Delhi at 18.7 per cent in summers and 16.2 per cent in winters, Siam said.

Studies in Delhi have also found that on holidays and weekends, when significantly lesser numbers of vehicles ply on roads, there has been no significant difference to the level of PM2.5. Claiming vehicle density in Delhi (number of vehicles per kilometre of road) is much lower to Chennai, Mumbai and Hyderabad. Kirloskar said the low PM2.5 in these cities does not establish that vehicles are the major source of pollution.

He also argued that if vehicular emission was the main culprit, the adoption of Bharat Stage (BS) emission BS-IV norms from a non-BS era a decade ago and use of compressed natural gas should have improved the quality of air.

Kirloskar said the argument that the benefits of higher emission norms have been lost due to an increase in the number of vehicles is also not credible since India produces only 2.5 million cars a year, while Europe makes nine million. Siam has argued that while people have a right to clean air they also have a right to mobility. “We cannot sacrifice one for the other. The stakes are too high.”

Dear Reader,


Business Standard has always strived hard to provide up-to-date information and commentary on developments that are of interest to you and have wider political and economic implications for the country and the world. Your encouragement and constant feedback on how to improve our offering have only made our resolve and commitment to these ideals stronger. Even during these difficult times arising out of Covid-19, we continue to remain committed to keeping you informed and updated with credible news, authoritative views and incisive commentary on topical issues of relevance.
We, however, have a request.

As we battle the economic impact of the pandemic, we need your support even more, so that we can continue to offer you more quality content. Our subscription model has seen an encouraging response from many of you, who have subscribed to our online content. More subscription to our online content can only help us achieve the goals of offering you even better and more relevant content. We believe in free, fair and credible journalism. Your support through more subscriptions can help us practise the journalism to which we are committed.

Support quality journalism and subscribe to Business Standard.

Digital Editor

First Published: Mon, June 01 2015. 00:46 IST
RECOMMENDED FOR YOU
.