India AQI Comparison — Compare PM2.5 Between Any Two Cities
Live side-by-side AQI for Indian cities, plus 9 years of CPCB station history from 2016 to 2024. Covering 214 cities, 551 monitoring stations, and 605,654 daily readings.
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Featured Comparisons
Delhi vs Mumbai→
Live AQI + 2016–2024 history
Delhi vs Bangalore→
Live AQI + 2016–2024 history
Delhi vs Kolkata→
Live AQI + 2016–2024 history
Mumbai vs Pune→
Live AQI + 2016–2024 history
Delhi vs Chennai→
Live AQI + 2016–2024 history
Bangalore vs Hyderabad→
Live AQI + 2016–2024 history
Delhi vs Lucknow→
Live AQI + 2016–2024 history
Mumbai vs Ahmedabad→
Live AQI + 2016–2024 history
Delhi vs Jaipur→
Live AQI + 2016–2024 history
Bangalore vs Chennai→
Live AQI + 2016–2024 history
Kolkata vs Patna→
Live AQI + 2016–2024 history
Delhi vs Gurgaon→
Live AQI + 2016–2024 history
What's in a comparison page?
- Live AQI strip — current AQI for both cities, pulled from the Open-Meteo CAMS global air-quality model (~45 km resolution, updated hourly).
- Yearly average trend chart — dual-line plot of annual AQI averages from 2016 through 2024, aggregated across every CPCB station in each city.
- Monthly seasonal heatmap — 12-month pattern showing when each city typically peaks (usually November–January in North India, post-monsoon elsewhere).
- Worst recorded days — top 10 all-time highs per city, with the specific station and date.
- Station leaderboard — top 5 worst CPCB stations in each city, ranked by multi-year average AQI.
- Programmatic summary — deterministic prose restating the numbers above, so every pair has an SEO-ready paragraph.
Full CPCB history is available for 214 Indian cities. For cities outside that set, comparison pages fall back to live-only data.