Kochi vs Mumbai
Side-by-side air quality comparison between Kochi and Mumbai.
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 | Kochi | Mumbai |
|---|---|---|
| PM2.5(µg/m³) | 7.80 | 17.80 |
| PM10(µg/m³) | 9.90 | 42.60 |
| NO₂(µg/m³) | 10.00 | 10.10 |
| SO₂(µg/m³) | 2.70 | 10.60 |
| O₃(µg/m³) | 24.00 | 42.00 |
| CO(µg/m³) | 125.00 | 173.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Kochi averaged an AQI of 91 while Mumbai averaged 93 — a 2-point (2%) gap, with Mumbai the more polluted and Kochi the cleaner of the two. On 902 days when both cities reported, Kochi was cleaner on 776 of them; the average daily gap was 105 AQI points.
Seasonality & days
Kochi peaks in January, while Mumbai peaks in December. Kochi logged 0% Severe days and 70.9% Good-or-Satisfactory days; Mumbai was 0.5% Severe and 34% Good-or-Satisfactory. Longest clean-air streaks: Kochi 80 days, Mumbai 58 days.
Year-over-year progress
Kochi has worsened by 7 AQI points (8.3%) from 2020 to 2024; Mumbai has improved by 4 AQI points (4.1%) over the same window. The worst recorded day for Kochi reached AQI 293 at Vyttila Kochi (PCB) on 2022-12-08; Mumbai hit AQI 500 at Vile Parle West (MPCB) on 2022-08-15.
Station-level disparity
Kochi spans 1 CPCB stations with a 0-point spread (min 88, max 88); Mumbai spans 29 stations with a 74-point spread (min 77, max 151).
Verdict
🏆 Kochi has better air quality with an AQI of 13 compared to Mumbai's 43.