11 Delhi-Bound Trains Delayed as Dense Fog Dips Visibility in the Capital6Photo© news18.com

11 Delhi-Bound Trains Delayed as Dense Fog Dips Visibility in the Capital

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Delhi's air quality deteriorated on Friday even as authorities said rainfall predicted in the next couple of days might lower the pollution levels. The city's air quality was in the "very poor" category.

According to Central Pollution Control Board (CPCB) data, the overall air quality index (AQI) in the city was 348, which falls in the ''very poor'' category. An AQI between 100 and 200 comes under ''moderate'' category, 201 and 300 is considered ''poor'', 301 and 400 ''very poor'', while that between 401 and 500 is ''severe''.

Mundka, ITO and Nehru Nagar recorded ''severe'' airquality, while 30 areas recorded ''very poor'' air qualityand four areas ''poor'' air quality, the CPCB said.