This is an archive article published on November 13, 2017
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Crisis is in the air

Delhi has become world’s air pollution outcaste. Its decision-makers haven’t understood the consequences.

Written by: Darryl D’Monte
7 min readNov 13, 2017 08:13 AM IST First published on: Nov 13, 2017 at 12:54 AM IST
Delhi pollution, Delhi smog, NGT, AAP, Odd-Even Scheme Thick smog in New Delhi on Tuesday (Express File Photo by Prem Nath Pandey)

The first thing that the Central and Delhi governments should own up to regarding the air pollution crisis is that everyone was forewarned and cannot pretend to be taken unawares. This “winter of our discontent” is the season when, as temperatures dip, pollutants hover around the surface of the city and do not waft upwards. Things will only get more acute towards January. To make matters worse, smoke from burning farm waste descends on the capital from surrounding states at this time, which is a far more intractable problem.

Three years ago, the writing on the wall was the revelation by the World Health Organisation (WHO) that Delhi was the most polluted city in the world, and 13 out of the 20 worst impacted were in north India. The tell-tale parameter is the smallest measurable particulate matter — PM of less than 2.5 microns — which was an annual average of 153 micrograms per cubic metre that year, well above the WHO limit of 35. Beijing, which was previously the black sheep of the world’s urban air contamination, recorded 53 micrograms.

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