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Delhi's AQI improves slightly but remains in 'very poor' category

By Rajan Nath -- November 23, 2021 8:11 am -- Updated:Feb 15, 2021

Delhi air pollution: The air quality in the national capital continues to remain in the 'very poor' category for the tenth consecutive day on Tuesday, however, strong winds can improve the situation marginally, as per the System of Air Quality & Weather Forecasting & Research (SAFAR).

The overall Air Quality Index (AQI) in Delhi improved slightly and stood at 315 on Tuesday in comparison to 352 on Monday.

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As per the SAFAR, the PM 10 levels were recorded at 249 in the 'moderate' category and PM 2.5 levels were recorded at 139 in the 'very poor' category.

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The share of stubble burning to Delhi's PM2.5 percent is low and the effective fire count is 909, the SAFAR stated in its bulletin. The air quality of Delhi is likely to improve to the 'poor' or 'lower end of very poor' category for the next two days.

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"The AQI on Tuesday indicates 'lower end of very poor' category, a significant improvement from yesterday due to low fire count and strong winds at transport level blowing from northwest direction dispersing pollutants," he said.

"These winds are likely to continue tomorrow also leading to further improvement of air quality to 'poor' category (if no increase in fire count). Local surface winds are also relatively high today and tomorrow that increasing dispersion. So air quality is likely to improve to 'poor' or 'lower end of very poor' category for the next two days," it added.

Also, from November 24 onwards local as well as transport-level winds are likely to slow down resulting in slight deterioration of air quality but expected to be within the 'lower end of very poor' category range.

The pollution level in the National Capital Region (NCR), especially Noida and Gurugram, also showed a slight improvement.

The AQI of Noida and Gurugram was recorded in the 'Very Poor' category and stood at 349 and 321, respectively.

-PTC News