Begusarai in Bihar is world’s most polluted metropolitan area.
According to Air Quality Report 2023 conducted by Swiss organisation IQAir, Begusarai in Bihar has been identified as the world’s most polluted metropolitan area.
New Delhi remains the world’s most polluted capital city for the fourth consecutive year since 2018.
India ranks third in terms of air quality, with an average annual PM2.5 concentration of 54.4 micrograms per cubic meter, following Bangladesh and Pakistan.
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