Hubli-Dharwad vs Karnal
Side-by-side air quality comparison between Hubli-Dharwad and Karnal.
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 | Karnal |
|---|---|---|
| PM2.5(µg/m³) | 5.50 | 110.80 |
| PM10(µg/m³) | 8.70 | 258.90 |
| NO₂(µg/m³) | 6.00 | 55.20 |
| SO₂(µg/m³) | 1.20 | 12.50 |
| O₃(µg/m³) | 36.00 | 10.00 |
| CO(µg/m³) | 114.00 | 1037.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Hubli-Dharwad averaged an AQI of 64 while Karnal averaged 102 — a 38-point (59%) gap, with Karnal the more polluted and Hubli-Dharwad the cleaner of the two. On 1718 days when both cities reported, Hubli-Dharwad was cleaner on 1239 of them; the average daily gap was 64 AQI points.
Seasonality & days
Hubli-Dharwad peaks in February, while Karnal peaks in November. Hubli-Dharwad logged 0% Severe days and 74.1% Good-or-Satisfactory days; Karnal was 0.1% Severe and 46.2% Good-or-Satisfactory. Longest clean-air streaks: Hubli-Dharwad 180 days, Karnal 53 days.
Year-over-year progress
Hubli-Dharwad has improved by 18 AQI points (22%) from 2018 to 2024; Karnal has improved by 71 AQI points (41%) over the same window. The worst recorded day for Hubli-Dharwad reached AQI 500 at Deshpande Nagar (KSPCB) on 2018-05-21; Karnal hit AQI 456 at Sector-12 (HSPCB) on 2019-11-03.
Station-level disparity
Hubli-Dharwad spans 2 CPCB stations with a 6-point spread (min 73, max 79); Karnal spans 1 stations with a 0-point spread (min 128, max 128).
Verdict
🏆 Hubli-Dharwad has better air quality with an AQI of 9 compared to Karnal's 270. That's a significant difference of 261 points.