Tiruchirappalli vs Tumkur
Side-by-side air quality comparison between Tiruchirappalli and Tumkur.
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 | Tumkur |
|---|---|---|
| PM2.5(µg/m³) | 5.60 | 3.40 |
| PM10(µg/m³) | 6.40 | 4.50 |
| NO₂(µg/m³) | 6.80 | 6.40 |
| SO₂(µg/m³) | 3.40 | 1.30 |
| O₃(µg/m³) | 40.00 | 35.00 |
| CO(µg/m³) | 134.00 | 124.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Tiruchirappalli averaged an AQI of 50 while Tumkur averaged 88 — a 38-point (76%) gap, with Tumkur the more polluted and Tiruchirappalli the cleaner of the two. On 56 days when both cities reported, Tiruchirappalli was cleaner on 55 of them; the average daily gap was 54 AQI points.
Seasonality & days
Tiruchirappalli peaks in January, while Tumkur peaks in December. Tiruchirappalli logged 0% Severe days and 96.5% Good-or-Satisfactory days; Tumkur was 0% Severe and 54% Good-or-Satisfactory. Longest clean-air streaks: Tiruchirappalli 46 days, Tumkur 20 days.
Year-over-year progress
Tiruchirappalli has improved by 23 AQI points (31.5%) from 2023 to 2024; Tumkur has improved by 69 AQI points (43.9%) over the same window. The worst recorded day for Tiruchirappalli reached AQI 114 at St Joseph College (TNPCB) on 2024-01-14; Tumkur hit AQI 355 at Thimmalapura (KSPCB) on 2023-02-15.
Station-level disparity
Tiruchirappalli spans 1 CPCB stations with a 0-point spread (min 52, max 52); Tumkur spans 1 stations with a 0-point spread (min 97, max 97).
Verdict
🏆 Tumkur has better air quality with an AQI of 6 compared to Tiruchirappalli's 9.