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LATEST NEWS UPDATES | Delhi's air not worst in India: CPCB data -Jayashree Nandi

Delhi's air not worst in India: CPCB data -Jayashree Nandi

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published Published on Feb 6, 2016   modified Modified on Feb 6, 2016
-The Times of India

NEW DELHI: The capital lost a dubious crown on Friday with the country's pollution watchdog saying it is not India's most polluted city, perhaps not even the second worst. But Central Pollution Control Board's (CPCB) data for the September 2015-January 2016 period clearly shows that Delhi's air is far from healthy.

CPCB has published air quality indices (AQI) for 24 cities that help in comparing pollution levels at a glance with a colour code and a numerical value. In India, AQIs are determined based on the concentrations of seven pollutants, including PM2.5 (fine, respirable particles), sulphur dioxide (SO2), nitrogen dioxide (NO2) and carbon monoxide (CO).

In January, when Varanasi in UP and Muzaffarpur in Bihar had "severe" AQI values of 409, Delhi scored a "very poor" with 362. Even neighbouring Faridabad was worse with an AQI of 399. Only three cities—Bengaluru, Haldia and Panchkula—had moderate air quality during the period.

Although the AQIs will draw attention to the problem of air pollution in smaller cities, experts say the indices are at best indicative because in most cities CPCB has very few monitoring stations, and sometimes these are out of order. For instance, Muzaffarpur, Gaya, Faridabad and Varanasi have only one station each.

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The Times of India, 6 February, 2016, http://timesofindia.indiatimes.com/india/Delhis-air-not-worst-in-India-CPCB-data/articleshow/50873367.cms


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