Hubli-Dharwad vs Saharsa
Side-by-side air quality comparison between Hubli-Dharwad and Saharsa.
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 | Saharsa |
|---|---|---|
| PM2.5(µg/m³) | 5.50 | 100.60 |
| PM10(µg/m³) | 8.70 | 109.00 |
| NO₂(µg/m³) | 6.00 | 40.40 |
| SO₂(µg/m³) | 1.20 | 12.20 |
| O₃(µg/m³) | 36.00 | 21.00 |
| CO(µg/m³) | 114.00 | 719.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Hubli-Dharwad averaged an AQI of 64 while Saharsa averaged 139 — a 75-point (117%) gap, with Saharsa the more polluted and Hubli-Dharwad the cleaner of the two. On 867 days when both cities reported, Hubli-Dharwad was cleaner on 743 of them; the average daily gap was 109 AQI points.
Seasonality & days
Hubli-Dharwad peaks in February, while Saharsa peaks in January. Hubli-Dharwad logged 0% Severe days and 74.1% Good-or-Satisfactory days; Saharsa was 1.4% Severe and 28.4% Good-or-Satisfactory. Longest clean-air streaks: Hubli-Dharwad 180 days, Saharsa 20 days.
Year-over-year progress
Hubli-Dharwad has improved by 18 AQI points (22%) from 2018 to 2024; Saharsa has improved by 139 AQI points (50%) over the same window. The worst recorded day for Hubli-Dharwad reached AQI 500 at Deshpande Nagar (KSPCB) on 2018-05-21; Saharsa hit AQI 454 at Police Line (BSPCB) on 2022-12-13.
Station-level disparity
Hubli-Dharwad spans 2 CPCB stations with a 6-point spread (min 73, max 79); Saharsa spans 1 stations with a 0-point spread (min 188, max 188).
Verdict
🏆 Hubli-Dharwad has better air quality with an AQI of 9 compared to Saharsa's 236. That's a significant difference of 227 points.