Samay | UP/Uttarakhand | MP/Chattisgarh | Bihar/Jharkhand | Rajasthan | Aalami Samay

PICS: 7 million died of air pollution in 2012

Air pollution killed seven million people in 2012: WHO

In the past, for example, the WHO did not take into account the overlap between exposure to both forms, and only assessed urban pollution. Satellite imagery has made it easier to assess rural pollution, and new knowledge about the health impact of exposure has enabled a better count.