Published on: April 26, 2025
PM10 POLLUTION STUDY (2021–2024)
PM10 POLLUTION STUDY (2021–2024)
NEWS
- A four-year analysis of PM10 pollutant levels across Indian cities.
- Conducted by Respirer Living Sciences.
- Aimed to identify critically affected areas, contributing factors, and propose data-driven interventions.
KEY FINDINGS
- All 11 cities analyzed exceeded the national annual PM10 standard of 60 µg/m³.
- PM10 remains a persistent environmental and health hazard.
- No significant downward trend in pollution levels, despite interventions.
WORST-AFFECTED CITIES
- Delhi: 214.3 µg/m³ (highest)
- Patna: 189.1 µg/m³
- Chandigarh: 136.9 µg/m³
- Lucknow: 118.8 µg/m³
- Ahmedabad: 108.2 µg/m³
SEASONAL TRENDS
- Winter: Pollution levels spike due to:
- Temperature inversions
- Biomass burning
- Summer: Lower levels due to:
- Better atmospheric dispersion
SOUTHERN CITIES OVERVIEW
- All southern metros still breached national limits, though less severe than northern cities.
- Bengaluru: 71.3 µg/m³
- Chennai: 63.2 µg/m³
- Hyderabad: 75.8 µg/m³
- Mumbai: 90 µg/m³
- Pune: 86.8 µg/m³
- Kolkata: 91.6 µg/m³ (showed signs of improvement)
BENGALURU’S AIR QUALITY: A CLOSER LOOK
Major Pollution Contributors
- Traffic congestion on IT corridors
- Widespread construction activities
- Open waste burning
- Dry weather conditions
Worst-Hit Locations
- Monitoring stations:
- Silk Board
- RVCE-Mailasandra
- City Railway Station
- Kasturi Nagar
- Residential areas:
- BTM Layout
- Hombegowda Nagar