Chennai vs Kozhikode
Side-by-side air quality comparison between Chennai and Kozhikode.
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
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Chennai averaged an AQI of 68 while Kozhikode averaged 78 — a 10-point (15%) gap, with Kozhikode the more polluted and Chennai the cleaner of the two. On 944 days when both cities reported, Kozhikode was cleaner on 862 of them; the average daily gap was 45 AQI points.
Seasonality & days
Chennai peaks in December, while Kozhikode peaks in January. Chennai logged 0% Severe days and 57.5% Good-or-Satisfactory days; Kozhikode was 0.1% Severe and 99% Good-or-Satisfactory. Longest clean-air streaks: Chennai 53 days, Kozhikode 83 days.
Year-over-year progress
Chennai has improved by 25 AQI points (26.9%) from 2017 to 2024; Kozhikode has worsened by 29 AQI points (59.2%) over the same window. The worst recorded day for Chennai reached AQI 391 at Kodungaiyur (TNPCB) on 2021-05-14; Kozhikode hit AQI 417 at Palayam Kozhikode (PCB) on 2021-01-25.
Station-level disparity
Chennai spans 9 CPCB stations with a 27-point spread (min 63, max 90); Kozhikode spans 1 stations with a 0-point spread (min 59, max 59).