Hassan vs Kolār
Side-by-side air quality comparison between Hassan and Kolār.
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, Hassan averaged an AQI of 60 while Kolār averaged 65 — a 5-point (8%) gap, with Kolār the more polluted and Hassan the cleaner of the two. On 529 days when both cities reported, Hassan was cleaner on 304 of them; the average daily gap was 28 AQI points.
Seasonality & days
Hassan peaks in March, while Kolār peaks in September. Hassan logged 0% Severe days and 92.5% Good-or-Satisfactory days; Kolār was 0.9% Severe and 85.30000000000001% Good-or-Satisfactory. Longest clean-air streaks: Hassan 51 days, Kolār 17 days.
Year-over-year progress
Hassan has improved by 4 AQI points (6.2%) from 2021 to 2024; Kolār has improved by 56 AQI points (46.3%) over the same window. The worst recorded day for Hassan reached AQI 212 at BKatihalli (KSPCB) on 2024-05-11; Kolār hit AQI 500 at Tamaka Ind Area (KSPCB) on 2018-09-18.
Station-level disparity
Hassan spans 1 CPCB stations with a 0-point spread (min 63, max 63); Kolār spans 1 stations with a 0-point spread (min 71, max 71).