Dewās vs Kollam
Side-by-side air quality comparison between Dewās and Kollam.
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, Dewās averaged an AQI of 98 while Kollam averaged 84 — a 14-point (17%) gap, with Dewās the more polluted and Kollam the cleaner of the two. On 1319 days when both cities reported, Kollam was cleaner on 788 of them; the average daily gap was 41 AQI points.
Seasonality & days
Dewās peaks in December, while Kollam peaks in January. Dewās logged 0% Severe days and 47.7% Good-or-Satisfactory days; Kollam was 0% Severe and 81% Good-or-Satisfactory. Longest clean-air streaks: Dewās 101 days, Kollam 65 days.
Year-over-year progress
Dewās has improved by 48 AQI points (32.9%) from 2017 to 2024; Kollam has improved by 2 AQI points (2.3%) over the same window. The worst recorded day for Dewās reached AQI 327 at Bhopal Chauraha (MPPCB) on 2023-07-01; Kollam hit AQI 272 at Polayathode Kollam (PCB) on 2024-04-06.
Station-level disparity
Dewās spans 1 CPCB stations with a 0-point spread (min 106, max 106); Kollam spans 1 stations with a 0-point spread (min 84, max 84).