Kollam vs Thane
Side-by-side air quality comparison between Kollam and Thane.
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 Thane averaged 95 — a 11-point (13%) gap, with Thane the more polluted and Kollam the cleaner of the two. On 272 days when both cities reported, Kollam was cleaner on 172 of them; the average daily gap was 49 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; Thane was 0% Severe and 53.800000000000004% Good-or-Satisfactory. Longest clean-air streaks: Kollam 65 days, Thane 99 days.
Year-over-year progress
The worst recorded day for Kollam reached AQI 272 at Polayathode Kollam (PCB) on 2024-04-06; Thane hit AQI 302 at Kasarvadavali (MPCB) on 2024-03-21.
Station-level disparity
Kollam spans 1 CPCB stations with a 0-point spread (min 84, max 84); Thane spans 2 stations with a 9-point spread (min 90, max 99).