Delhi's air quality improves after Diwali celebrations despite firecracker use

hindustantimes.com

Delhi's air quality improved on Friday after a spike during Diwali celebrations, where firecracker use violated a winter ban. The Air Quality Index (AQI) peaked at 362 (very poor) but dropped to 354 by noon, aided by clearer skies and winds. On Diwali, PM 2.5 levels reached alarming highs, with concentrations in some areas 31 times above the national standard. The average PM 2.5 level was 609 micrograms per cubic meter at midnight, significantly worse than last year's AQI of 218 on the same day. Weather conditions, including higher temperatures and consistent winds, helped disperse pollutants. October was recorded as Delhi's warmest in 73 years, with average temperatures above normal, contributing to the air quality changes.


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