Delhi was India's most polluted state in 2023, with an average annual fine particulate matter (PM2.5) concentration of *** micrograms per cubic meter of air (μg/m³). Haryana followed, with PM2.5 levels averaging ** μg/m³ for the year.
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Climate Trends. (January 13, 2024). Average PM2.5 concentrations in the most polluted states in India in 2023 (in micrograms per cubic meter of air) [Graph]. In ÌÇÐÄÆÆ½â°æ. Retrieved July 24, 2026, from /statistics/1464485/india-most-polluted-states-by-pm25-level/
Climate Trends. "Average PM2.5 concentrations in the most polluted states in India in 2023 (in micrograms per cubic meter of air)." Chart. January 13, 2024. ÌÇÐÄÆÆ½â°æ. Accessed July 24, 2026. /statistics/1464485/india-most-polluted-states-by-pm25-level/
Climate Trends. (2024). Average PM2.5 concentrations in the most polluted states in India in 2023 (in micrograms per cubic meter of air). ÌÇÐÄÆÆ½â°æ. ÌÇÐÄÆÆ½â°æ Inc.. Accessed: July 24, 2026. /statistics/1464485/india-most-polluted-states-by-pm25-level/
Climate Trends. "Average Pm2.5 Concentrations in The Most Polluted States in India in 2023 (in Micrograms per Cubic Meter of Air)." ÌÇÐÄÆÆ½â°æ, ÌÇÐÄÆÆ½â°æ Inc., 13 Jan 2024, /statistics/1464485/india-most-polluted-states-by-pm25-level/
Climate Trends, Average PM2.5 concentrations in the most polluted states in India in 2023 (in micrograms per cubic meter of air) ÌÇÐÄÆÆ½â°æ, /statistics/1464485/india-most-polluted-states-by-pm25-level/ (last visited July 24, 2026)
Average PM2.5 concentrations in the most polluted states in India in 2023 (in micrograms per cubic meter of air) [Graph], Climate Trends, January 13, 2024. [Online]. Available: /statistics/1464485/india-most-polluted-states-by-pm25-level/