Delhi air quality further deteriorates, AQI slips to 368

By Rajan Nath -- November 26, 2021 9:11 am -- Updated:Feb 15, 2021

Delhi air pollution: The overall Air Quality Index (AQI) in the national capital on Friday morning slipped to 368 in the 'very poor' category, according to the System of Air Quality and Weather Forecasting and Research (SAFAR).

The PM 10 was recorded at 376 in the 'very poor' category and PM 2.5 was recorded at 224 in the 'very poor' category at 7:50 am. Gurugram and Noida recorded AQI of 350 and 463 respectively in the "very poor" and "severe" categories.

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The Air Quality Index in Delhi remained in 'Very Poor' category. "Local surface winds are relatively low for the next 3 days that reduces the dispersion of pollutants leading to the deterioration of air quality but within the 'upper end of very poor' category for the next three days," SAFAR said in a bulletin.

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It further said that on November 29 local surface winds are likely to increase resulting in improvement of air quality but remain within the 'Very Poor' category.

"Local emissions and weather (Mixing layer height and wind speed) are likely to be the dominant factors controlling air quality. Effective fire count is 219 and its percent share in Delhi's PM2.5 is 6 percent," it added.

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As per the India Meteorological Department (IMD), Delhi today recorded a minimum temperature of 11 degrees Celsius, while the maximum temperature recorded was 28 degrees Celsius.

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'.

-PTC News