US EditionStudy Based on Satellite Assessment Finds Widespread PM2.5 Pollution Across India
Delhi's annual PM2.5 average was 101 µg/m³, 2.5 times above India's standard, with 447 districts nationwide surpassing air quality limits, CREA reported.
- On Nov 25, a satellite-based analysis found Delhi recorded an annual mean PM2.5 of 11 micrograms per cubic metre, with over 447 districts breaching the NAAQS.
- The CREA study, covering March 2024–February 2025, examined annual PM2.5 concentrations using satellite-based analysis and recommended improved satellite monitoring to track pollution sources.
- Regional data show Chandigarh recorded 70 micrograms per cubic metre, Haryana 63 and Tripura 62, while Assam, Bihar, West Bengal, Punjab, Meghalaya and Nagaland also exceeded the national standard.
- Experts warned long-term PM2.5 exposure raises risks of respiratory and cardiovascular diseases, strokes, and premature death, and the report calls for coordinated central and state governments’ efforts with accelerated policy implementation, strengthened monitoring, and stricter emission controls.
- Data also reveal the most polluted districts are concentrated in a few states, with Delhi and Assam each accounting for 11 of the top 50, while Ladakh, Andaman and Nicobar Islands, and Lakshadweep were excluded due to insufficient monitoring.
13 Articles
13 Articles
Study based on satellite assessment finds widespread PM2.5 pollution across India
Satellite data show 60% of India’s districts breach PM2.5 standards, with Delhi topping the list, and the Indo-Gangetic and Northeast airsheds emerging as year-round pollution hotspots, a report by the Centre for Research on Energy and Clean Air says
Delhi Records Highest PM2.5 Levels In India; 447 Districts Breach Air Quality Standard: Report
A new satellite-based analysis reveals that Delhi has the highest annual PM2.5 concentration in India at 101 micrograms per cubic metre—2.5 times the national limit and 20 times the WHO guideline. Chandigarh, Haryana, Tripura, and Assam also recorded dangerously high pollution levels.
Delhi tops India in PM2.5 pollution; 447 districts exceed national air quality limit: Report
New Delhi, Delhi is the most polluted state. Its annual PM2.5 concentration is 101 micrograms per cubic metre. This is 2.5 times the Indian standard. Chandigarh is second. Many districts across India exceed air quality standards. Delhi and Assam have the most polluted districts. This analysis uses satellite data from March 2024 to February 2025.
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