Lucknow coughs through most polluted day of season

LUCKNOW: With Air Quality Index (AQI) of Lucknow touching 382 (severe) on Friday, the city not only witnessed its most polluted day post-monsoon so far, but also saw the worst air quality on November 1 in three years.
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According to data from the Central Pollution Control Board (CPCB), Lucknow’s AQI was in the hazardous category, exposure to which can lead to serious respiratory issues.

In 2017 and 2018, AQI on November 1 was 301 and 302 respectively.
According to live monitoring by CPCB on Friday evening, PM2.5 concentration in Lucknow peaked to 450 microgram per cubic metre of air in Lalbagh, making it the most polluted locality of the city. It was followed by Talkatora, Aliganj and Nishatganj with PM2.5 concentration recorded 403, 289 and 280 respectively.
Lucknow University air quality monitoring station director Prof Dhruvsen Singh said, “It was not just PM2.5 concentration but even gaseous pollutants peaked in the city with carbon dioxide and ozone levels recorded 428.64 and 46.6 respectively.
After Diwali on October 27, pollution level in the city has increased by around 150 units.