The report notes air pollution exposure collectively reduces life expectancy by 20 months on average worldwide. Across the world, air pollution is responsible for more deaths than many better-known risk factors such as malnutrition, alcohol use and physical inactivity, states the report.
Every year, after Diwali, people in the Capital are engulfed in a thick cloud of smog. We spoke to people and doctors in the city to find out how smog affects the eye and if it could be prevented at all.
On Tuesday, the level of PM2.5 (particles in the air with a diameter of less than 2.5 micrometres) and PM10 (particles in the air with a diameter of less than 10 micrometres) in Delhi was recorded at 238 and 399 respectively.