Mumbai vs Tiruchirappalli
Side-by-side air quality comparison between Mumbai 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 | Mumbai | Tiruchirappalli |
|---|---|---|
| PM2.5(µg/m³) | 17.50 | 5.60 |
| PM10(µg/m³) | 40.70 | 6.40 |
| NO₂(µg/m³) | 11.00 | 6.80 |
| SO₂(µg/m³) | 12.60 | 3.40 |
| O₃(µg/m³) | 42.00 | 40.00 |
| CO(µg/m³) | 196.00 | 134.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Mumbai averaged an AQI of 93 while Tiruchirappalli averaged 50 — a 43-point (86%) gap, with Mumbai the more polluted and Tiruchirappalli the cleaner of the two. On 82 days when both cities reported, Tiruchirappalli was cleaner on 82 of them; the average daily gap was 166 AQI points.
Seasonality & days
Mumbai peaks in December, while Tiruchirappalli peaks in January. Mumbai logged 0.5% Severe days and 34% Good-or-Satisfactory days; Tiruchirappalli was 0% Severe and 96.5% Good-or-Satisfactory. Longest clean-air streaks: Mumbai 58 days, Tiruchirappalli 46 days.
Year-over-year progress
Mumbai has improved by 4 AQI points (4.1%) from 2016 to 2024; Tiruchirappalli has improved by 23 AQI points (31.5%) over the same window. The worst recorded day for Mumbai reached AQI 500 at Vile Parle West (MPCB) on 2022-08-15; Tiruchirappalli hit AQI 114 at St Joseph College (TNPCB) on 2024-01-14.
Station-level disparity
Mumbai spans 29 CPCB stations with a 74-point spread (min 77, max 151); Tiruchirappalli spans 1 stations with a 0-point spread (min 52, max 52).
Verdict
🏆 Tiruchirappalli has better air quality with an AQI of 9 compared to Mumbai's 41.