Hubli-Dharwad vs Karur
Side-by-side air quality comparison between Hubli-Dharwad and Karur.
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 | Karur |
|---|---|---|
| PM2.5(µg/m³) | 5.50 | 3.80 |
| PM10(µg/m³) | 8.70 | 4.40 |
| NO₂(µg/m³) | 6.00 | 7.30 |
| SO₂(µg/m³) | 1.20 | 2.70 |
| O₃(µg/m³) | 36.00 | 37.00 |
| CO(µg/m³) | 114.00 | 117.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Hubli-Dharwad averaged an AQI of 64 while Karur averaged 71 — a 7-point (11%) gap, with Karur the more polluted and Hubli-Dharwad the cleaner of the two. On 70 days when both cities reported, Karur was cleaner on 42 of them; the average daily gap was 34 AQI points.
Seasonality & days
Hubli-Dharwad peaks in February, while Karur peaks in December. Hubli-Dharwad logged 0% Severe days and 74.1% Good-or-Satisfactory days; Karur was 0% Severe and 80.3% Good-or-Satisfactory. Longest clean-air streaks: Hubli-Dharwad 180 days, Karur 34 days.
Year-over-year progress
The worst recorded day for Hubli-Dharwad reached AQI 500 at Deshpande Nagar (KSPCB) on 2018-05-21; Karur hit AQI 149 at Kamadenu Nagar (TNPCB) on 2024-11-26.
Station-level disparity
Hubli-Dharwad spans 2 CPCB stations with a 6-point spread (min 73, max 79); Karur spans 1 stations with a 0-point spread (min 71, max 71).
Verdict
🏆 Karur has better air quality with an AQI of 6 compared to Hubli-Dharwad's 9.