Kollam vs Korba
Side-by-side air quality comparison between Kollam and Korba.
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 Korba averaged 67 — a 17-point (25%) gap, with Kollam the more polluted and Korba the cleaner of the two. On 566 days when both cities reported, Korba was cleaner on 320 of them; the average daily gap was 37 AQI points.
Seasonality & days
Both cities see their worst air in January on average. Kollam logged 0% Severe days and 81% Good-or-Satisfactory days; Korba was 0% Severe and 78.8% Good-or-Satisfactory. Longest clean-air streaks: Kollam 65 days, Korba 83 days.
Year-over-year progress
Kollam has improved by 2 AQI points (2.3%) from 2020 to 2024; Korba has improved by 19 AQI points (22.1%) over the same window. The worst recorded day for Kollam reached AQI 272 at Polayathode Kollam (PCB) on 2024-04-06; Korba hit AQI 313 at Urja Nagar (CECB) on 2023-01-04.
Station-level disparity
Kollam spans 1 CPCB stations with a 0-point spread (min 84, max 84); Korba spans 2 stations with a 13-point spread (min 62, max 75).