Haldia vs Hubli-Dharwad
Side-by-side air quality comparison between Haldia and Hubli-Dharwad.
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 | Haldia | Hubli-Dharwad |
|---|---|---|
| PM2.5(µg/m³) | 46.60 | 5.30 |
| PM10(µg/m³) | 51.90 | 8.40 |
| NO₂(µg/m³) | 11.40 | 5.20 |
| SO₂(µg/m³) | 10.40 | 1.20 |
| O₃(µg/m³) | 96.00 | 39.00 |
| CO(µg/m³) | 284.00 | 117.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Haldia averaged an AQI of 90 while Hubli-Dharwad averaged 64 — a 26-point (41%) gap, with Haldia the more polluted and Hubli-Dharwad the cleaner of the two. On 677 days when both cities reported, Haldia was cleaner on 376 of them; the average daily gap was 42 AQI points.
Seasonality & days
Haldia peaks in December, while Hubli-Dharwad peaks in February. Haldia logged 0% Severe days and 65.4% Good-or-Satisfactory days; Hubli-Dharwad was 0% Severe and 74.1% Good-or-Satisfactory. Longest clean-air streaks: Haldia 51 days, Hubli-Dharwad 180 days.
Year-over-year progress
Haldia has worsened by 8 AQI points (9.8%) from 2023 to 2024; Hubli-Dharwad has improved by 18 AQI points (22%) over the same window. The worst recorded day for Haldia reached AQI 322 at Priyambada Housing Estate (WBPCB) on 2024-11-26; Hubli-Dharwad hit AQI 500 at Deshpande Nagar (KSPCB) on 2018-05-21.
Station-level disparity
Haldia spans 1 CPCB stations with a 0-point spread (min 86, max 86); Hubli-Dharwad spans 2 stations with a 6-point spread (min 73, max 79).
Verdict
🏆 Hubli-Dharwad has better air quality with an AQI of 9 compared to Haldia's 78. That's a significant difference of 69 points.