Coimbatore vs Kalaburagi
Side-by-side air quality comparison between Coimbatore and Kalaburagi.
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 | Kalaburagi |
|---|---|---|
| PM2.5(µg/m³) | 2.70 | 13.80 |
| PM10(µg/m³) | 2.90 | 20.60 |
| NO₂(µg/m³) | 4.50 | 7.80 |
| SO₂(µg/m³) | 2.20 | 3.60 |
| O₃(µg/m³) | 43.00 | 48.00 |
| CO(µg/m³) | 159.00 | 181.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Coimbatore averaged an AQI of 66 while Kalaburagi averaged 49 — a 17-point (35%) gap, with Coimbatore the more polluted and Kalaburagi the cleaner of the two. On 783 days when both cities reported, Kalaburagi was cleaner on 391 of them; the average daily gap was 35 AQI points.
Seasonality & days
Coimbatore peaks in November, while Kalaburagi peaks in December. Coimbatore logged 0% Severe days and 90.5% Good-or-Satisfactory days; Kalaburagi was 0.6% Severe and 69.6% Good-or-Satisfactory. Longest clean-air streaks: Coimbatore 32 days, Kalaburagi 120 days.
Year-over-year progress
Coimbatore has improved by 5 AQI points (7%) from 2019 to 2024; Kalaburagi has improved by 56 AQI points (53.3%) over the same window. The worst recorded day for Coimbatore reached AQI 279 at SIDCO Kurichi (TNPCB) on 2024-09-28; Kalaburagi hit AQI 500 at Lal Bahadur Shastri Nagar (KSPCB) on 2020-10-26.
Station-level disparity
Coimbatore spans 2 CPCB stations with a 1-point spread (min 63, max 64); Kalaburagi spans 2 stations with a 40-point spread (min 43, max 83).
Verdict
🏆 Coimbatore has better air quality with an AQI of 5 compared to Kalaburagi's 23.