Coimbatore vs Korba
Side-by-side air quality comparison between Coimbatore and Korba.
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 | Korba |
|---|---|---|
| PM2.5(µg/m³) | 2.70 | 48.10 |
| PM10(µg/m³) | 2.90 | 56.60 |
| NO₂(µg/m³) | 4.50 | 15.00 |
| SO₂(µg/m³) | 2.20 | 20.40 |
| O₃(µg/m³) | 43.00 | 86.00 |
| CO(µg/m³) | 159.00 | 325.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Coimbatore averaged an AQI of 66 while Korba averaged 67 — a 1-point (2%) gap, with Korba the more polluted and Coimbatore the cleaner of the two. On 287 days when both cities reported, Coimbatore was cleaner on 166 of them; the average daily gap was 35 AQI points.
Seasonality & days
Coimbatore peaks in November, while Korba peaks in January. Coimbatore logged 0% Severe days and 90.5% Good-or-Satisfactory days; Korba was 0% Severe and 78.8% Good-or-Satisfactory. Longest clean-air streaks: Coimbatore 32 days, Korba 83 days.
Year-over-year progress
Coimbatore has improved by 5 AQI points (7%) from 2019 to 2024; Korba has improved by 19 AQI points (22.1%) over the same window. The worst recorded day for Coimbatore reached AQI 279 at SIDCO Kurichi (TNPCB) on 2024-09-28; Korba hit AQI 313 at Urja Nagar (CECB) on 2023-01-04.
Station-level disparity
Coimbatore spans 2 CPCB stations with a 1-point spread (min 63, max 64); Korba spans 2 stations with a 13-point spread (min 62, max 75).
Verdict
🏆 Coimbatore has better air quality with an AQI of 5 compared to Korba's 81. That's a significant difference of 76 points.