What are the worst polluters in Delhi as per TERI?

Vehicles are the largest emitters of PM2.5 (fine particulate matter) in Delhi, making up around 47% of the total estimated PM2.5 emission, a 2021 draft report on emission inventory by TERI said. Vehicles are followed by road dust, which made up 20% of the total emissions, the report said. Two-wheelers are largest source of PM2.5 among vehicles, it added.