Coimbatore vs Hyderabad
Side-by-side air quality comparison between Coimbatore and Hyderabad.
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 | Hyderabad |
|---|---|---|
| PM2.5(µg/m³) | 2.70 | 20.50 |
| PM10(µg/m³) | 2.90 | 27.90 |
| NO₂(µg/m³) | 4.50 | 10.40 |
| SO₂(µg/m³) | 2.20 | 5.30 |
| O₃(µg/m³) | 43.00 | 63.00 |
| CO(µg/m³) | 159.00 | 281.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Coimbatore averaged an AQI of 66 while Hyderabad averaged 78 — a 12-point (18%) gap, with Hyderabad the more polluted and Coimbatore the cleaner of the two. On 1005 days when both cities reported, Coimbatore was cleaner on 875 of them; the average daily gap was 61 AQI points.
Seasonality & days
Coimbatore peaks in November, while Hyderabad peaks in December. Coimbatore logged 0% Severe days and 90.5% Good-or-Satisfactory days; Hyderabad was 0.2% Severe and 41.6% Good-or-Satisfactory. Longest clean-air streaks: Coimbatore 32 days, Hyderabad 71 days.
Year-over-year progress
Coimbatore has improved by 5 AQI points (7%) from 2019 to 2024; Hyderabad has improved by 24 AQI points (23.5%) over the same window. The worst recorded day for Coimbatore reached AQI 279 at SIDCO Kurichi (TNPCB) on 2024-09-28; Hyderabad hit AQI 500 at Sanathnagar (TSPCB) on 2024-04-28.
Station-level disparity
Coimbatore spans 2 CPCB stations with a 1-point spread (min 63, max 64); Hyderabad spans 14 stations with a 35-point spread (min 62, max 97).
Verdict
🏆 Coimbatore has better air quality with an AQI of 5 compared to Hyderabad's 34.