ET Graphics: Smog season is here, again
Delhi’s air quality has deteriorated, as pollution levels reached alarming rates in neighbouring cities as well. Major factors contributing to this situation include vehicle emissions and agricultural fires from nearby states. Forecasts indicate t...

Delhi’s air quality has deteriorated
Data shows that 58 cities across India recorded air quality in poor, very poor or severe category on Friday. India’s average PM2.5 concentration in 2025 was nearly 10 times the World Health Organization (WHO) guideline.



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