Delhi ‘most polluted’ major city in the world on Tuesday (October 21, 2025) morning, according to IQAir’s (a Swiss air quality technology company) live data for over 120 cities
Delhi ‘most polluted’ major city in the world on Tuesday (October 21, 2025) morning, according to IQAir’s (a Swiss air quality technology company) live data for over 120 cities
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