Thrissur vs Virudhunagar
Side-by-side air quality comparison between Thrissur and Virudhunagar.
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 | Thrissur | Virudhunagar |
|---|---|---|
| PM2.5(µg/m³) | 8.20 | 5.00 |
| PM10(µg/m³) | 9.70 | 6.00 |
| NO₂(µg/m³) | 10.20 | 7.30 |
| SO₂(µg/m³) | 3.20 | 3.00 |
| O₃(µg/m³) | 26.00 | 33.00 |
| CO(µg/m³) | 146.00 | 124.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Thrissur averaged an AQI of 57 while Virudhunagar averaged 52 — a 5-point (10%) gap, with Thrissur the more polluted and Virudhunagar the cleaner of the two. On 160 days when both cities reported, Virudhunagar was cleaner on 104 of them; the average daily gap was 21 AQI points.
Seasonality & days
Thrissur peaks in February, while Virudhunagar peaks in November. Thrissur logged 0% Severe days and 88.4% Good-or-Satisfactory days; Virudhunagar was 0% Severe and 92.3% Good-or-Satisfactory. Longest clean-air streaks: Thrissur 52 days, Virudhunagar 31 days.
Year-over-year progress
The worst recorded day for Thrissur reached AQI 181 at Corporation Ground Thrissur (PCB) on 2023-01-09; Virudhunagar hit AQI 173 at Collectorate Office (TNPCB) on 2024-11-07.
Station-level disparity
Thrissur spans 1 CPCB stations with a 0-point spread (min 68, max 68); Virudhunagar spans 1 stations with a 0-point spread (min 52, max 52).
Verdict
🏆 Virudhunagar has better air quality with an AQI of 8 compared to Thrissur's 14.