Delhi was found to have the largest fraction of daily and yearly deaths attributable to PM2.5 air pollution, caused by particles sized 2.5 micrometres or less in diameter.
Air pollution (iStock)
On average, 7.2 percent of all daily deaths in 10 of the most polluted cities in India were linked to PM2.5 levels higher than WHO guidelines for safe exposure, according to a study published in the Lancet journal. Researchers said daily exposure to pollution is linked with a higher risk of death, and locally created pollution could be possibly causing these deaths.