Cuddalore vs Hubli-Dharwad
Side-by-side air quality comparison between Cuddalore 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 | Cuddalore | Hubli-Dharwad |
|---|---|---|
| PM2.5(µg/m³) | 13.10 | 5.50 |
| PM10(µg/m³) | 16.60 | 8.70 |
| NO₂(µg/m³) | 17.00 | 6.00 |
| SO₂(µg/m³) | 7.60 | 1.20 |
| O₃(µg/m³) | 36.00 | 36.00 |
| CO(µg/m³) | 507.00 | 114.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Cuddalore averaged an AQI of 52 while Hubli-Dharwad averaged 64 — a 12-point (23%) gap, with Hubli-Dharwad the more polluted and Cuddalore the cleaner of the two. On 309 days when both cities reported, Cuddalore was cleaner on 221 of them; the average daily gap was 28 AQI points.
Seasonality & days
Cuddalore peaks in January, while Hubli-Dharwad peaks in February. Cuddalore logged 0% Severe days and 90.6% Good-or-Satisfactory days; Hubli-Dharwad was 0% Severe and 74.1% Good-or-Satisfactory. Longest clean-air streaks: Cuddalore 34 days, Hubli-Dharwad 180 days.
Year-over-year progress
The worst recorded day for Cuddalore reached AQI 329 at Kudikadu (TNPCB) on 2024-04-05; Hubli-Dharwad hit AQI 500 at Deshpande Nagar (KSPCB) on 2018-05-21.
Station-level disparity
Cuddalore spans 2 CPCB stations with a 11-point spread (min 46, max 57); 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 Cuddalore's 22.