Kollam vs Sasaram
Side-by-side air quality comparison between Kollam and Sasaram.
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 Sasaram averaged 109 — a 25-point (30%) gap, with Sasaram the more polluted and Kollam the cleaner of the two. On 776 days when both cities reported, Kollam was cleaner on 582 of them; the average daily gap was 82 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; Sasaram was 0.1% Severe and 37% Good-or-Satisfactory. Longest clean-air streaks: Kollam 65 days, Sasaram 27 days.
Year-over-year progress
Kollam has improved by 2 AQI points (2.3%) from 2020 to 2024; Sasaram has improved by 166 AQI points (60.4%) over the same window. The worst recorded day for Kollam reached AQI 272 at Polayathode Kollam (PCB) on 2024-04-06; Sasaram hit AQI 401 at Dada Peer (BSPCB) on 2021-11-28.
Station-level disparity
Kollam spans 1 CPCB stations with a 0-point spread (min 84, max 84); Sasaram spans 1 stations with a 0-point spread (min 148, max 148).