Coimbatore vs Pimpri-Chinchwad
Side-by-side air quality comparison between Coimbatore and Pimpri-Chinchwad.
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 | Pimpri-Chinchwad |
|---|---|---|
| PM2.5(µg/m³) | 2.30 | 18.90 |
| PM10(µg/m³) | 2.90 | 42.60 |
| NO₂(µg/m³) | 2.00 | 1.10 |
| SO₂(µg/m³) | 1.30 | 4.30 |
| O₃(µg/m³) | 68.00 | 111.00 |
| CO(µg/m³) | 142.00 | 128.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Coimbatore averaged an AQI of 66 while Pimpri-Chinchwad averaged 114 — a 48-point (73%) gap, with Pimpri-Chinchwad the more polluted and Coimbatore the cleaner of the two. On 295 days when both cities reported, Coimbatore was cleaner on 240 of them; the average daily gap was 79 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; Pimpri-Chinchwad was 0% Severe and 42% Good-or-Satisfactory. Longest clean-air streaks: Coimbatore 32 days, Pimpri-Chinchwad 82 days.
Year-over-year progress
The worst recorded day for Coimbatore reached AQI 279 at SIDCO Kurichi (TNPCB) on 2024-09-28; Pimpri-Chinchwad hit AQI 341 at Thergaon Pimpri (MPCB) on 2024-11-23.
Station-level disparity
Coimbatore spans 2 CPCB stations with a 1-point spread (min 63, max 64); Pimpri-Chinchwad spans 4 stations with a 20-point spread (min 107, max 127).
Verdict
🏆 Coimbatore has better air quality with an AQI of 4 compared to Pimpri-Chinchwad's 43.