India: Delhi’s air quality worst in 8 months

The 24-hour average AQI was recorded at 300 at 4 pm, which falls in the “poor” category. The last time the air quality hit such a poor level was on February 12 when the AQI was 320.

The national capital’s air quality hit an eight-month low and was recorded just a notch shy of the “very poor” category on Tuesday, largely due to calm winds and low temperature that allowed accumulation of pollutants. According to the Ministry of Earth Sciences’ Air Quality Early Warning System for Delhi, an increase was also observed in farm fires in Punjab, Haryana and neighbouring regions of Pakistan, but its impact on the capital’s air quality was marginal. The city’s air quality index (AQI) hit “very poor” levels in the morning and stood at 306 at 11 am. Thereafter, the pollution levels dipped slightly due to an improvement in the ventilation index.