Chennai vs Kolhapur
Side-by-side air quality comparison between Chennai and Kolhapur.
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 Kolhapur averaged 100 — a 32-point (47%) gap, with Kolhapur the more polluted and Chennai the cleaner of the two. On 364 days when both cities reported, Chennai was cleaner on 202 of them; the average daily gap was 51 AQI points.
Seasonality & days
Chennai peaks in December, while Kolhapur peaks in November. Chennai logged 0% Severe days and 57.5% Good-or-Satisfactory days; Kolhapur was 0% Severe and 46.400000000000006% Good-or-Satisfactory. Longest clean-air streaks: Chennai 53 days, Kolhapur 81 days.
Year-over-year progress
The worst recorded day for Chennai reached AQI 391 at Kodungaiyur (TNPCB) on 2021-05-14; Kolhapur hit AQI 321 at Shivaji University (MPCB) on 2024-11-12.
Station-level disparity
Chennai spans 9 CPCB stations with a 27-point spread (min 63, max 90); Kolhapur spans 2 stations with a 19-point spread (min 90, max 109).