Hubli-Dharwad vs Puducherry
Side-by-side air quality comparison between Hubli-Dharwad and Puducherry.
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 | Puducherry |
|---|---|---|
| PM2.5(µg/m³) | 5.30 | 16.40 |
| PM10(µg/m³) | 8.40 | 19.20 |
| NO₂(µg/m³) | 5.20 | 18.50 |
| SO₂(µg/m³) | 1.20 | 8.80 |
| O₃(µg/m³) | 39.00 | 37.00 |
| CO(µg/m³) | 117.00 | 394.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Hubli-Dharwad averaged an AQI of 64 while Puducherry averaged 55 — a 9-point (16%) gap, with Hubli-Dharwad the more polluted and Puducherry the cleaner of the two. On 1293 days when both cities reported, Puducherry was cleaner on 969 of them; the average daily gap was 34 AQI points.
Seasonality & days
Hubli-Dharwad peaks in February, while Puducherry peaks in December. Hubli-Dharwad logged 0% Severe days and 74.1% Good-or-Satisfactory days; Puducherry was 0% Severe and 95.4% Good-or-Satisfactory. Longest clean-air streaks: Hubli-Dharwad 180 days, Puducherry 117 days.
Year-over-year progress
Hubli-Dharwad has improved by 18 AQI points (22%) from 2018 to 2024; Puducherry has worsened by 1 AQI points (1.9%) over the same window. The worst recorded day for Hubli-Dharwad reached AQI 500 at Deshpande Nagar (KSPCB) on 2018-05-21; Puducherry hit AQI 274 at Jawahar Nagar (PPCC) on 2022-10-25.
Station-level disparity
Hubli-Dharwad spans 2 CPCB stations with a 6-point spread (min 73, max 79); Puducherry spans 1 stations with a 0-point spread (min 56, max 56).
Verdict
🏆 Hubli-Dharwad has better air quality with an AQI of 9 compared to Puducherry's 27.