Thrissur vs Tonk
Side-by-side air quality comparison between Thrissur and Tonk.
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 | Tonk |
|---|---|---|
| PM2.5(µg/m³) | 8.20 | 34.90 |
| PM10(µg/m³) | 9.70 | 75.90 |
| NO₂(µg/m³) | 10.20 | 14.10 |
| SO₂(µg/m³) | 3.20 | 4.50 |
| O₃(µg/m³) | 26.00 | 38.00 |
| CO(µg/m³) | 146.00 | 239.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Thrissur averaged an AQI of 57 while Tonk averaged 142 — a 85-point (149%) gap, with Tonk the more polluted and Thrissur the cleaner of the two. On 497 days when both cities reported, Thrissur was cleaner on 430 of them; the average daily gap was 87 AQI points.
Seasonality & days
Thrissur peaks in February, while Tonk peaks in November. Thrissur logged 0% Severe days and 88.4% Good-or-Satisfactory days; Tonk was 0% Severe and 28.200000000000003% Good-or-Satisfactory. Longest clean-air streaks: Thrissur 52 days, Tonk 11 days.
Year-over-year progress
Thrissur has improved by 21 AQI points (26.9%) from 2020 to 2024; Tonk has improved by 14 AQI points (9%) over the same window. The worst recorded day for Thrissur reached AQI 181 at Corporation Ground Thrissur (PCB) on 2023-01-09; Tonk hit AQI 368 at Shastri Nagar (RSPCB) on 2023-11-17.
Station-level disparity
Thrissur spans 1 CPCB stations with a 0-point spread (min 68, max 68); Tonk spans 1 stations with a 0-point spread (min 148, max 148).
Verdict
🏆 Thrissur has better air quality with an AQI of 14 compared to Tonk's 76. That's a significant difference of 62 points.