Mumbai vs Thrissur
Side-by-side air quality comparison between Mumbai and Thrissur.
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 | Thrissur |
|---|---|---|
| PM2.5(µg/m³) | 17.50 | 8.60 |
| PM10(µg/m³) | 40.70 | 10.10 |
| NO₂(µg/m³) | 11.00 | 9.80 |
| SO₂(µg/m³) | 12.60 | 3.30 |
| O₃(µg/m³) | 42.00 | 29.00 |
| CO(µg/m³) | 196.00 | 163.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Mumbai averaged an AQI of 93 while Thrissur averaged 57 — a 36-point (63%) gap, with Mumbai the more polluted and Thrissur the cleaner of the two. On 851 days when both cities reported, Thrissur was cleaner on 845 of them; the average daily gap was 135 AQI points.
Seasonality & days
Mumbai peaks in December, while Thrissur peaks in February. Mumbai logged 0.5% Severe days and 34% Good-or-Satisfactory days; Thrissur was 0% Severe and 88.4% Good-or-Satisfactory. Longest clean-air streaks: Mumbai 58 days, Thrissur 52 days.
Year-over-year progress
Mumbai has improved by 4 AQI points (4.1%) from 2016 to 2024; Thrissur has improved by 21 AQI points (26.9%) over the same window. The worst recorded day for Mumbai reached AQI 500 at Vile Parle West (MPCB) on 2022-08-15; Thrissur hit AQI 181 at Corporation Ground Thrissur (PCB) on 2023-01-09.
Station-level disparity
Mumbai spans 29 CPCB stations with a 74-point spread (min 77, max 151); Thrissur spans 1 stations with a 0-point spread (min 68, max 68).
Verdict
🏆 Thrissur has better air quality with an AQI of 14 compared to Mumbai's 41.