Mixed Success Of Firecracker Ban, But Delhi Air Quality Improves From Last Year

| October 20 , 2017 , 10:15 IST

Although the Supreme Court ban on the sale of firecrackers in Delhi NCR did not ensure a complete ban on the bursting of crackers which continued sporadically through the capital region, the air pollution has noted a significant improvement from last year.

According to Central Pollution Control Board (CPCB) data, on Thursday the day of Diwali, the Air Quality Index (AQI) value was 319 which rose to 342-355 on Friday, the morning after Diwali. Last year, the AQI value on the day of Diwali was 150 which rose to 999 the next day.

An AQI level of between 0-50 is considered good, 51-100 is satisfactory, 101-200 is moderate, 201-300 is poor, 301-400 is very poor and 401 and above is considered severe.

ALSO READ: 627,000 Die Every Year Of Particulate Air Pollution

The System of Air Quality and Weather Forecasting and Research (SAFAR), reported that around 11 pm, the 24-hour rolling average of PM 2.5 and PM 10 were 154 and 256 micrograms per cubic metre respectively, an increase from the permissible levels of PM 2.5 at 60 and PM 10 at 100.

A similar situation was noted in the national capital regions of Gurgaon, Noida and Ghaziabad.

If the AQI level falls into the category of 'very poor', those already suffering from respiratory conditions may face complications from being exposed to the air. If the AQI level falls further, into the 'severe' category, then those who do not suffer from respiratory ailments stand at the risk of complications.

Other than firecrackers, factors contributing to air pollution include crop burnings in nearby Punjab and Haryana, diesel generators and vehicle generated pollution. Ahead of Diwali, the Supreme Court appointed the Environment Pollution Prevention and Control Authority, banned diesel generators in Delhi after the air quality entered the 'Red Zone'.