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Delhi air pollution: Delhi air quality improves but remains in ‘poor’ category

New Delhi: On Wednesday morning, Delhi's air quality improved due to favorable wind speed, but still remained in the poor category. The Air Quality Index (AQI) improved from 303 at 6 pm on Tuesday to 262 at 6 am from 312 on Monday at 4 pm on Monday.

By Priyanka Verma 
Updated Date

New Delhi: On Wednesday morning, Delhi’s air quality improved due to favorable wind speed, but still remained in the poor category. The Air Quality Index (AQI) improved from 303 at 6 pm on Tuesday to 262 at 6 am from 312 on Monday at 4 pm on Monday.

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On the other hand, the air quality in Ghaziabad (262), Noida (246), Greater Noida (196), Gurugram (242) and Faridabad (243) was recorded in the moderate to poor category. An AQI between zero and 50 is considered good, 51 and 100 satisfactory, 101 and 200 moderate, 201 and 300 poor, 301 and 400 very poor, and 401 and 500 severe.

In the past two years, Delhi and its adjoining areas witnessed “severe” air quality on Diwali. Intense smog in the region significantly degraded the air quality as stubble burning was at its peak during November and calm winds also trapped pollutants.

The improvement in air quality this year has been attributed to the early Diwali season as compared to previous years, which saw moderate warm and windy conditions to prevent rapid accumulation of pollutants from crackers and reduce the impact of stubble burning .

Delhi’s particulate matter (PM) 2.5 pollution level was three to four times higher than the national standard of 60 micrograms per cubic meter for 24 hours on Wednesday morning.

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The committee credited the relatively better air quality this year to the reduction in incidents of stubble burning in Punjab along with better meteorological conditions and “less bursting of firecrackers”.

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