Delhi: Air Quality Index Falls Back To 'Poor' After Three Months

Delhi's Air Quality Index (AQI) fell back to 'Poor Category' on October 7 after three months break from June, according to data by the Central Pollution Control Board. Experts stated that the changing weather and farm-fires in border states could have caused the dip. Reportedly, the System of Air Quality and Weather Forecasting Research stated PM 2.5 as major pollutant during winters and opined that the AQI could further worsen.