Kollam vs Sikar
Side-by-side air quality comparison between Kollam and Sikar.
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 Sikar averaged 139 — a 55-point (65%) gap, with Sikar the more polluted and Kollam the cleaner of the two. On 499 days when both cities reported, Kollam was cleaner on 396 of them; the average daily gap was 66 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; Sikar was 0.2% Severe and 34% Good-or-Satisfactory. Longest clean-air streaks: Kollam 65 days, Sikar 32 days.
Year-over-year progress
Kollam has improved by 2 AQI points (2.3%) from 2020 to 2024; Sikar has worsened by 4 AQI points (3%) over the same window. The worst recorded day for Kollam reached AQI 272 at Polayathode Kollam (PCB) on 2024-04-06; Sikar hit AQI 452 at Radhakishan Pura (RSPCB) on 2023-11-16.
Station-level disparity
Kollam spans 1 CPCB stations with a 0-point spread (min 84, max 84); Sikar spans 1 stations with a 0-point spread (min 137, max 137).