Kochi vs Ratlam
Side-by-side air quality comparison between Kochi and Ratlam.
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, Kochi averaged an AQI of 91 while Ratlam averaged 113 — a 22-point (24%) gap, with Ratlam the more polluted and Kochi the cleaner of the two. On 1060 days when both cities reported, Kochi was cleaner on 604 of them; the average daily gap was 42 AQI points.
Seasonality & days
Kochi peaks in January, while Ratlam peaks in November. Kochi logged 0% Severe days and 70.9% Good-or-Satisfactory days; Ratlam was 0% Severe and 46.4% Good-or-Satisfactory. Longest clean-air streaks: Kochi 80 days, Ratlam 59 days.
Year-over-year progress
Kochi has worsened by 7 AQI points (8.3%) from 2020 to 2024; Ratlam has improved by 19 AQI points (14.4%) over the same window. The worst recorded day for Kochi reached AQI 293 at Vyttila Kochi (PCB) on 2022-12-08; Ratlam hit AQI 302 at Shasthri Nagar Ratlam (Lab) on 2020-11-11.
Station-level disparity
Kochi spans 1 CPCB stations with a 0-point spread (min 88, max 88); Ratlam spans 1 stations with a 0-point spread (min 103, max 103).