Coimbatore vs Pune
Side-by-side air quality comparison between Coimbatore and Pune.
Live AQI from Open-Meteo CAMS (~45 km global model, updated hourly). Multi-year history from CPCB station data via aqinow.co pipeline (2016–2024, station-level daily records).
AQI Comparison
Pollutant-level comparison (PM2.5, PM10, O3, NO2, SO2, CO)▾
| Pollutant | Coimbatore | Pune |
|---|---|---|
| PM2.5(µg/m³) | 2.70 | 16.30 |
| PM10(µg/m³) | 2.90 | 35.50 |
| NO₂(µg/m³) | 4.50 | 10.00 |
| SO₂(µg/m³) | 2.20 | 9.20 |
| O₃(µg/m³) | 43.00 | 36.00 |
| CO(µg/m³) | 159.00 | 152.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Coimbatore averaged an AQI of 66 while Pune averaged 97 — a 31-point (47%) gap, with Pune the more polluted and Coimbatore the cleaner of the two. On 875 days when both cities reported, Coimbatore was cleaner on 762 of them; the average daily gap was 70 AQI points.
Seasonality & days
Both cities see their worst air in November on average. Coimbatore logged 0% Severe days and 90.5% Good-or-Satisfactory days; Pune was 0.1% Severe and 44.8% Good-or-Satisfactory. Longest clean-air streaks: Coimbatore 32 days, Pune 92 days.
Year-over-year progress
Coimbatore has improved by 5 AQI points (7%) from 2019 to 2024; Pune has improved by 7 AQI points (6.7%) over the same window. The worst recorded day for Coimbatore reached AQI 279 at SIDCO Kurichi (TNPCB) on 2024-09-28; Pune hit AQI 435 at Alandi (IITM) on 2024-01-29.
Station-level disparity
Coimbatore spans 2 CPCB stations with a 1-point spread (min 63, max 64); Pune spans 12 stations with a 54-point spread (min 68, max 122).
Verdict
🏆 Coimbatore has better air quality with an AQI of 5 compared to Pune's 36.