Tiruchirappalli vs Tonk
Side-by-side air quality comparison between Tiruchirappalli 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 | Tiruchirappalli | Tonk |
|---|---|---|
| PM2.5(µg/m³) | 5.40 | 34.90 |
| PM10(µg/m³) | 6.60 | 75.90 |
| NO₂(µg/m³) | 7.20 | 14.10 |
| SO₂(µg/m³) | 3.10 | 4.50 |
| O₃(µg/m³) | 38.00 | 38.00 |
| CO(µg/m³) | 134.00 | 239.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Tiruchirappalli averaged an AQI of 50 while Tonk averaged 142 — a 92-point (184%) gap, with Tonk the more polluted and Tiruchirappalli the cleaner of the two. On 80 days when both cities reported, Tiruchirappalli was cleaner on 80 of them; the average daily gap was 153 AQI points.
Seasonality & days
Tiruchirappalli peaks in January, while Tonk peaks in November. Tiruchirappalli logged 0% Severe days and 96.5% Good-or-Satisfactory days; Tonk was 0% Severe and 28.200000000000003% Good-or-Satisfactory. Longest clean-air streaks: Tiruchirappalli 46 days, Tonk 11 days.
Year-over-year progress
Tiruchirappalli has improved by 23 AQI points (31.5%) from 2023 to 2024; Tonk has improved by 14 AQI points (9%) over the same window. The worst recorded day for Tiruchirappalli reached AQI 114 at St Joseph College (TNPCB) on 2024-01-14; Tonk hit AQI 368 at Shastri Nagar (RSPCB) on 2023-11-17.
Station-level disparity
Tiruchirappalli spans 1 CPCB stations with a 0-point spread (min 52, max 52); Tonk spans 1 stations with a 0-point spread (min 148, max 148).
Verdict
🏆 Tiruchirappalli has better air quality with an AQI of 9 compared to Tonk's 76. That's a significant difference of 67 points.