Chandigarh vs Thrissur
Side-by-side air quality comparison between Chandigarh and Thrissur.
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 | Chandigarh | Thrissur |
|---|---|---|
| PM2.5(µg/m³) | 46.30 | 8.60 |
| PM10(µg/m³) | 63.60 | 10.10 |
| NO₂(µg/m³) | 30.10 | 9.80 |
| SO₂(µg/m³) | 10.30 | 3.30 |
| O₃(µg/m³) | 64.00 | 29.00 |
| CO(µg/m³) | 602.00 | 163.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Chandigarh averaged an AQI of 153 while Thrissur averaged 57 — a 96-point (168%) gap, with Chandigarh the more polluted and Thrissur the cleaner of the two. On 1162 days when both cities reported, Thrissur was cleaner on 1025 of them; the average daily gap was 87 AQI points.
Seasonality & days
Chandigarh peaks in January, while Thrissur peaks in February. Chandigarh logged 0.3% Severe days and 39.9% Good-or-Satisfactory days; Thrissur was 0% Severe and 88.4% Good-or-Satisfactory. Longest clean-air streaks: Chandigarh 92 days, Thrissur 52 days.
Year-over-year progress
Chandigarh has worsened by 27 AQI points (21.4%) from 2019 to 2024; Thrissur has improved by 21 AQI points (26.9%) over the same window. The worst recorded day for Chandigarh reached AQI 452 at Sector-53 (CPCC) on 2022-11-09; Thrissur hit AQI 181 at Corporation Ground Thrissur (PCB) on 2023-01-09.
Station-level disparity
Chandigarh spans 3 CPCB stations with a 43-point spread (min 107, max 150); Thrissur spans 1 stations with a 0-point spread (min 68, max 68).
Verdict
🏆 Thrissur has better air quality with an AQI of 14 compared to Chandigarh's 78. That's a significant difference of 64 points.