Kollam vs Satna
Side-by-side air quality comparison between Kollam and Satna.
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, Kollam averaged an AQI of 84 while Satna averaged 66 — a 18-point (27%) gap, with Kollam the more polluted and Satna the cleaner of the two. On 1313 days when both cities reported, Satna was cleaner on 838 of them; the average daily gap was 33 AQI points.
Seasonality & days
Kollam peaks in January, while Satna peaks in November. Kollam logged 0% Severe days and 81% Good-or-Satisfactory days; Satna was 0.2% Severe and 74.1% Good-or-Satisfactory. Longest clean-air streaks: Kollam 65 days, Satna 146 days.
Year-over-year progress
Kollam has improved by 2 AQI points (2.3%) from 2020 to 2024; Satna has improved by 58 AQI points (46.8%) over the same window. The worst recorded day for Kollam reached AQI 272 at Polayathode Kollam (PCB) on 2024-04-06; Satna hit AQI 500 at Bandhavgar Colony Satna (Cement) on 2018-05-27.
Station-level disparity
Kollam spans 1 CPCB stations with a 0-point spread (min 84, max 84); Satna spans 1 stations with a 0-point spread (min 85, max 85).