Dindigul vs Tiruchirappalli
Side-by-side air quality comparison between Dindigul and Tiruchirappalli.
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 | Dindigul | Tiruchirappalli |
|---|---|---|
| PM2.5(µg/m³) | 18.20 | 6.00 |
| PM10(µg/m³) | 19.70 | 7.80 |
| NO₂(µg/m³) | 28.00 | 6.70 |
| SO₂(µg/m³) | 2.70 | 3.00 |
| O₃(µg/m³) | 1.00 | 40.00 |
| CO(µg/m³) | 215.00 | 131.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Dindigul averaged an AQI of 61 while Tiruchirappalli averaged 50 — a 11-point (22%) gap, with Dindigul the more polluted and Tiruchirappalli the cleaner of the two. On 55 days when both cities reported, Tiruchirappalli was cleaner on 55 of them; the average daily gap was 32 AQI points.
Seasonality & days
Dindigul peaks in February, while Tiruchirappalli peaks in January. Dindigul logged 0% Severe days and 67.3% Good-or-Satisfactory days; Tiruchirappalli was 0% Severe and 96.5% Good-or-Satisfactory. Longest clean-air streaks: Dindigul 22 days, Tiruchirappalli 46 days.
Year-over-year progress
Dindigul has improved by 29 AQI points (32.2%) from 2022 to 2024; Tiruchirappalli has improved by 23 AQI points (31.5%) over the same window. The worst recorded day for Dindigul reached AQI 352 at Mendonsa Colony (TNPCB) on 2023-03-12; Tiruchirappalli hit AQI 114 at St Joseph College (TNPCB) on 2024-01-14.
Station-level disparity
Dindigul spans 1 CPCB stations with a 0-point spread (min 102, max 102); Tiruchirappalli spans 1 stations with a 0-point spread (min 52, max 52).
Verdict
🏆 Tiruchirappalli has better air quality with an AQI of 10 compared to Dindigul's 30.