Delhi air quality oscillating between 'poor' and 'very poor'

Delhi air pollution,air emergency in Delhi,air pollution

Delhi air pollution,air emergency in Delhi,air pollution

"The share of PM2.5 is 60-70 per cent. Combination of several rapidly changing weather parameters play role in controlling the air pollution at this time and dynamics changes even if one parameter behaves erratically", he said.

"But, considering total emission loads, especially from firecracker bursting, witnessed in 2017, the air quality is expected to be "very poor" over the next 48 hours", he said.SAFAR's forecast said particulate matter (PM) in the air will reach its highest levels between midnight and 3am on November 7 and November 8 (Wednesday night to early Thursday morning), as pollution from crackers will start settling towards the surface.

PM2.5 levels above 300 and PM10 levels above 430 are categorised under "severe-plus emergency".

For Thursday and Friday, the System of Air Quality Weather Forecasting and Research (SAFAR) issued a revised forecast, when pollution levels are likely to rise to 335 and 301, both falling under the "very poor" category.

Meanwhile, the CPCB said it has recommended to the authorities that the entry of heavy vehicles in Delhi be banned after Diwali from November 8 to 10 when the air quality is expected to deteriorate further to "severe" level.

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The Supreme Court last month allowed the use of "green" firecrackers for Diwali to try to curb pollution, but it was unclear how the rule would be enforced or whether there was such a thing as an environmentally safe firework.

In Dwarka district, two cases were registered and two people were arrested, the officer said. A person was arrested in this connection, he added.

The AQI in Delhi on Tuesday morning was marginally above 400.

"This is the first smog episode of Delhi for this season".

The overall Air Quality Index was recorded at 394, which falls in the "very poor" category, according to data by the Central Pollution Control Board.

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Twenty-three out of 26 monitoring stations with AQI data across Delhi reported a severe pollution level, meaning most of the city's air would affect even the healthy people.

Delhi residents were bracing for the fall-out from Diwali, one of the year's biggest Hindu festivals, which is expected to add to the chronic air pollution problem in the Indian capital. Jawaharlal Nehru Stadium and Major Dhyan Chand National Stadium recorded PM 10 levels at 681 and 676 respectively.

Despite reappearing every winter, official efforts to combat Delhi's smog have been ineffectual.

Faridabad, Ghaziabad, Gurgaon, Noida and Greater Noida recorded "poor" quality air, according to the CPCB.

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