On "severe" days, farm fires contributed a quarter to half of PM2.5 concentration in Delhi

AQI, PM2.5, and contribution of stubble burning to Delhi's PM2.5

PM2.5 data for 36 of 40 stations with 24-hour averages for 90% or more days in 2021

Source: CPCB AQI bulletins; CCR, CAAQM; SAFAR Get the data