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PM2.5

A woman wrapped in a shawl walks on the road during a cold winter evening in New Delhi. (Photo: Reuters)

Mapped: Bad air days across cities

2 min read . 29 Dec 2019
Photo: AP<br />

Fighting pollution, the Delhi way

4 min read . 11 Jan 2016
For decades, research on the health effects of air pollution has focused on the lungs, where the effects are most noticeable.<br />

Killer in the air

6 min read . 17 Nov 2014
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