New Delhi, Oct. 22 -- Globally, Indians had the highest exposure to particulate matter 2.5 - a pollutant that causes respiratory ailments last year - according to the State of Global Air 2020 (SOGA) report, which underscores the immediate need to tackle the issue at a time when air quality levels have been plunging in the National Capital Region.

India is followed by Nepal, Niger, Qatar and Nigeria in recording high PM 2.5 exposure, a pollutant that causes several respiratory ailments and exacerbates many others underlying medical conditions, according to the report released on Wednesday.

It also said India has been recording an increase in PM 2.5 pollution since 2010. Central Pollution Control Board data from 2019 also shows that the nat...