Kannur vs Kochi
Side-by-side air quality comparison between Kannur and Kochi.
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 | Kannur | Kochi |
|---|---|---|
| PM2.5(µg/m³) | 7.00 | 8.60 |
| PM10(µg/m³) | 15.00 | 11.80 |
| NO₂(µg/m³) | 4.10 | 7.10 |
| SO₂(µg/m³) | 1.30 | 2.90 |
| O₃(µg/m³) | 54.00 | 48.00 |
| CO(µg/m³) | 173.00 | 143.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Kannur averaged an AQI of 65 while Kochi averaged 91 — a 26-point (40%) gap, with Kochi the more polluted and Kannur the cleaner of the two. On 1029 days when both cities reported, Kannur was cleaner on 691 of them; the average daily gap was 36 AQI points.
Seasonality & days
Kannur peaks in February, while Kochi peaks in January. Kannur logged 0% Severe days and 92% Good-or-Satisfactory days; Kochi was 0% Severe and 70.9% Good-or-Satisfactory. Longest clean-air streaks: Kannur 103 days, Kochi 80 days.
Year-over-year progress
Kannur has worsened by 11 AQI points (20.4%) from 2020 to 2024; Kochi has worsened by 7 AQI points (8.3%) over the same window. The worst recorded day for Kannur reached AQI 258 at Thavakkara Kannur (PCB) on 2021-04-14; Kochi hit AQI 293 at Vyttila Kochi (PCB) on 2022-12-08.
Station-level disparity
Kannur spans 1 CPCB stations with a 0-point spread (min 66, max 66); Kochi spans 1 stations with a 0-point spread (min 88, max 88).
Verdict
🏆 Kochi has better air quality with an AQI of 14 compared to Kannur's 15.