Scroll Explains Video: Without this level of air pollution, Indians could be living an extra 4 to 9 years Air Quality Life Index did a study to find out the direct impact of air pollution on human life expectancy. Neelima & Makrand Sanghvi Sep 22, 2017 · 09:00 am Play We welcome your comments at letters@scroll.in. Air Pollution Life Expectancy New Delhi Air Quality Life Index World Health Organisation