Poor to critical air quality recorded in Delhi in last three years: CPCB

The CPCB also listed out the approach it was adopted for the upcoming winter season.

Poor to severe air quality was observed in the national capital for a total of 398 days out of 703 days, considered over a period of three years, according to the Central Pollution Control Board.

The CPCB also listed out the approach it was adopted for the upcoming winter season.

Some of the measures include field inspections by the CPCB, decentralized management of air quality -- a micro level action plan, linking micro-level action plan of various agencies, implementation of the Graded Response Action Plan in Delhi and NCR towns, a CPCB official told reporters.

The measures also included the formation of expert committees and panels and follow-up with agencies for directions, the official said.

In 2018 (till August 26), poor to severe air quality was observed for 120 days, while in 2017 it was 125 days and in 2016 it was 153.

The total number of days considered for the analysis was 227 in 2016 and 238 each in 2017 and 2018, the official added.

Moreover, reasons at the local level were listed as biomass burning, secondary particulates, vehicles, coal and fly ash, road and soil dust.

At the regional level, the pollution causing factors were stubble burning in Haryana and Punjab, while at the global level the pollution causing factors are transboundary dust storms and stubble burning.

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