Bhilwara vs Kollam
Side-by-side air quality comparison between Bhilwara 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, Bhilwara averaged an AQI of 98 while Kollam averaged 84 — a 14-point (17%) gap, with Bhilwara the more polluted and Kollam the cleaner of the two. On 391 days when both cities reported, Kollam was cleaner on 273 of them; the average daily gap was 54 AQI points.
Seasonality & days
Bhilwara peaks in December, while Kollam peaks in January. Bhilwara logged 0% Severe days and 54.900000000000006% Good-or-Satisfactory days; Kollam was 0% Severe and 81% Good-or-Satisfactory. Longest clean-air streaks: Bhilwara 35 days, Kollam 65 days.
Year-over-year progress
Bhilwara has improved by 37 AQI points (27.4%) from 2023 to 2024; Kollam has improved by 2 AQI points (2.3%) over the same window. The worst recorded day for Bhilwara reached AQI 331 at Pratap Nagar (RSPCB) on 2023-12-27; Kollam hit AQI 272 at Polayathode Kollam (PCB) on 2024-04-06.
Station-level disparity
Bhilwara spans 1 CPCB stations with a 0-point spread (min 111, max 111); Kollam spans 1 stations with a 0-point spread (min 84, max 84).