Coimbatore vs Kaithal
Side-by-side air quality comparison between Coimbatore and Kaithal.
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 | Kaithal |
|---|---|---|
| PM2.5(µg/m³) | 2.50 | 96.90 |
| PM10(µg/m³) | 3.00 | 409.80 |
| NO₂(µg/m³) | 4.60 | 23.20 |
| SO₂(µg/m³) | 2.00 | 11.60 |
| O₃(µg/m³) | 40.00 | 49.00 |
| CO(µg/m³) | 163.00 | 744.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Coimbatore averaged an AQI of 66 while Kaithal averaged 126 — a 60-point (91%) gap, with Kaithal the more polluted and Coimbatore the cleaner of the two. On 950 days when both cities reported, Coimbatore was cleaner on 795 of them; the average daily gap was 78 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; Kaithal was 0.7% Severe and 41.400000000000006% Good-or-Satisfactory. Longest clean-air streaks: Coimbatore 32 days, Kaithal 39 days.
Year-over-year progress
Coimbatore has improved by 5 AQI points (7%) from 2019 to 2024; Kaithal has improved by 8 AQI points (6%) over the same window. The worst recorded day for Coimbatore reached AQI 279 at SIDCO Kurichi (TNPCB) on 2024-09-28; Kaithal hit AQI 467 at Rishi Nagar (HSPCB) on 2019-11-03.
Station-level disparity
Coimbatore spans 2 CPCB stations with a 1-point spread (min 63, max 64); Kaithal spans 1 stations with a 0-point spread (min 136, max 136).
Verdict
🏆 Coimbatore has better air quality with an AQI of 4 compared to Kaithal's 375. That's a significant difference of 371 points.