Hubli-Dharwad vs Kolār
Side-by-side air quality comparison between Hubli-Dharwad 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
Pollutant-level comparison (PM2.5, PM10, O3, NO2, SO2, CO)▾
| Pollutant | Hubli-Dharwad | Kolār |
|---|---|---|
| PM2.5(µg/m³) | 5.50 | 5.90 |
| PM10(µg/m³) | 8.70 | 7.20 |
| NO₂(µg/m³) | 6.00 | 10.90 |
| SO₂(µg/m³) | 1.20 | 4.70 |
| O₃(µg/m³) | 36.00 | 35.00 |
| CO(µg/m³) | 114.00 | 189.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Hubli-Dharwad averaged an AQI of 64 while Kolār averaged 65 — a 1-point (2%) gap, with Kolār the more polluted and Hubli-Dharwad the cleaner of the two. On 1009 days when both cities reported, Kolār was cleaner on 619 of them; the average daily gap was 32 AQI points.
Seasonality & days
Hubli-Dharwad peaks in February, while Kolār peaks in September. Hubli-Dharwad logged 0% Severe days and 74.1% Good-or-Satisfactory days; Kolār was 0.9% Severe and 85.30000000000001% Good-or-Satisfactory. Longest clean-air streaks: Hubli-Dharwad 180 days, Kolār 17 days.
Year-over-year progress
Hubli-Dharwad has improved by 18 AQI points (22%) from 2018 to 2024; Kolār has improved by 56 AQI points (46.3%) over the same window. The worst recorded day for Hubli-Dharwad reached AQI 500 at Deshpande Nagar (KSPCB) on 2018-05-21; Kolār hit AQI 500 at Tamaka Ind Area (KSPCB) on 2018-09-18.
Station-level disparity
Hubli-Dharwad spans 2 CPCB stations with a 6-point spread (min 73, max 79); Kolār spans 1 stations with a 0-point spread (min 71, max 71).
Verdict
🏆 Hubli-Dharwad has better air quality with an AQI of 9 compared to Kolār's 10.