Its latest analysis found that ammonium sulfate accounts for 49% of PM2.5 pollution in Delhi during the post-monsoon period ...

About two-thirds of Delhi's air pollution in 2025 came from outside the city, largely from nearby NCR areas and neighbouring ...

New research shows ammonium sulphate makes up nearly one-third of Delhi’s PM2.5 pollution and poses serious health risks.

A recent analysis by CREA uncovers that secondary particles from coal-fired power plants are the main driver of PM2.5 ...

Around one-third of Delhi’s annual PM2.5 pollution is made up of secondary ammonium sulfate, with its share rising sharply ...

The Delhi government is planning to revive its stalled real-time source apportionment study, nearly two years after it was ...