Gummidipoondi vs Thrissur
Side-by-side air quality comparison between Gummidipoondi 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 | Gummidipoondi | Thrissur |
|---|---|---|
| PM2.5(µg/m³) | 9.40 | 9.10 |
| PM10(µg/m³) | 11.90 | 11.40 |
| NO₂(µg/m³) | 9.50 | 9.00 |
| SO₂(µg/m³) | 8.60 | 3.40 |
| O₃(µg/m³) | 63.00 | 37.00 |
| CO(µg/m³) | 230.00 | 204.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Gummidipoondi averaged an AQI of 107 while Thrissur averaged 57 — a 50-point (88%) gap, with Gummidipoondi the more polluted and Thrissur the cleaner of the two. On 788 days when both cities reported, Thrissur was cleaner on 597 of them; the average daily gap was 46 AQI points.
Seasonality & days
Gummidipoondi peaks in November, while Thrissur peaks in February. Gummidipoondi logged 0% Severe days and 59.1% Good-or-Satisfactory days; Thrissur was 0% Severe and 88.4% Good-or-Satisfactory. Longest clean-air streaks: Gummidipoondi 49 days, Thrissur 52 days.
Year-over-year progress
Gummidipoondi has worsened by 8 AQI points (8.1%) from 2021 to 2024; Thrissur has improved by 21 AQI points (26.9%) over the same window. The worst recorded day for Gummidipoondi reached AQI 326 at Anthoni Pillai Nagar (TNPCB) on 2023-12-22; Thrissur hit AQI 181 at Corporation Ground Thrissur (PCB) on 2023-01-09.
Station-level disparity
Gummidipoondi spans 1 CPCB stations with a 0-point spread (min 99, max 99); Thrissur spans 1 stations with a 0-point spread (min 68, max 68).
Verdict
🏆 Thrissur has better air quality with an AQI of 15 compared to Gummidipoondi's 16.