Despite the favourable December weather, a thin veil of smog lingered in parts of the city on Tuesday. Pics/Shadab Khan
The smog is being attributed to a mix of factors: rising particulate matter from traffic, ongoing construction dust, and emissions from industrial sources, experts suggest
Experts note that primary pollutants like nitrogen oxides (from vehicle exhausts and factories), and particulate matter (PM2.5 and PM10) remain high — even though the AQI has not yet crossed into 'poor' or 'unhealthy' territory
Deonar, with an AQI of 145, and Vile Parle, at 139, recorded the highest AQI levels among the affected areas in Mumbai

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