Kollam vs Palwal
Side-by-side air quality comparison between Kollam and Palwal.
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 Palwal averaged 95 — a 11-point (13%) gap, with Palwal the more polluted and Kollam the cleaner of the two. On 1278 days when both cities reported, Kollam was cleaner on 781 of them; the average daily gap was 43 AQI points.
Seasonality & days
Kollam peaks in January, while Palwal peaks in November. Kollam logged 0% Severe days and 81% Good-or-Satisfactory days; Palwal was 0.2% Severe and 47.800000000000004% Good-or-Satisfactory. Longest clean-air streaks: Kollam 65 days, Palwal 37 days.
Year-over-year progress
Kollam has improved by 2 AQI points (2.3%) from 2020 to 2024; Palwal has improved by 91 AQI points (48.9%) over the same window. The worst recorded day for Kollam reached AQI 272 at Polayathode Kollam (PCB) on 2024-04-06; Palwal hit AQI 465 at Shyam Nagar (HSPCB) on 2019-11-14.
Station-level disparity
Kollam spans 1 CPCB stations with a 0-point spread (min 84, max 84); Palwal spans 1 stations with a 0-point spread (min 120, max 120).