Kollam vs Thanjavur
Side-by-side air quality comparison between Kollam and Thanjavur.
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 Thanjavur averaged 42 — a 42-point (100%) gap, with Kollam the more polluted and Thanjavur the cleaner of the two. On 55 days when both cities reported, Thanjavur was cleaner on 50 of them; the average daily gap was 28 AQI points.
Seasonality & days
Kollam peaks in January, while Thanjavur peaks in November. Kollam logged 0% Severe days and 81% Good-or-Satisfactory days; Thanjavur was 0% Severe and 98.60000000000001% Good-or-Satisfactory. Longest clean-air streaks: Kollam 65 days, Thanjavur 21 days.
Year-over-year progress
The worst recorded day for Kollam reached AQI 272 at Polayathode Kollam (PCB) on 2024-04-06; Thanjavur hit AQI 140 at Parisutham Nagar (TNPCB) on 2024-11-01.
Station-level disparity
Kollam spans 1 CPCB stations with a 0-point spread (min 84, max 84); Thanjavur spans 1 stations with a 0-point spread (min 42, max 42).