Hubli-Dharwad vs Tiruchirappalli
Side-by-side air quality comparison between Hubli-Dharwad and Tiruchirappalli.
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 | Tiruchirappalli |
|---|---|---|
| PM2.5(µg/m³) | 3.90 | 3.70 |
| PM10(µg/m³) | 8.30 | 4.40 |
| NO₂(µg/m³) | 1.10 | 1.10 |
| SO₂(µg/m³) | 0.70 | 1.90 |
| O₃(µg/m³) | 72.00 | 90.00 |
| CO(µg/m³) | 111.00 | 116.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Hubli-Dharwad averaged an AQI of 64 while Tiruchirappalli averaged 50 — a 14-point (28%) gap, with Hubli-Dharwad the more polluted and Tiruchirappalli the cleaner of the two. On 87 days when both cities reported, Tiruchirappalli was cleaner on 76 of them; the average daily gap was 37 AQI points.
Seasonality & days
Hubli-Dharwad peaks in February, while Tiruchirappalli peaks in January. Hubli-Dharwad logged 0% Severe days and 74.1% Good-or-Satisfactory days; Tiruchirappalli was 0% Severe and 96.5% Good-or-Satisfactory. Longest clean-air streaks: Hubli-Dharwad 180 days, Tiruchirappalli 46 days.
Year-over-year progress
Hubli-Dharwad has improved by 18 AQI points (22%) from 2018 to 2024; Tiruchirappalli has improved by 23 AQI points (31.5%) over the same window. The worst recorded day for Hubli-Dharwad reached AQI 500 at Deshpande Nagar (KSPCB) on 2018-05-21; Tiruchirappalli hit AQI 114 at St Joseph College (TNPCB) on 2024-01-14.
Station-level disparity
Hubli-Dharwad spans 2 CPCB stations with a 6-point spread (min 73, max 79); Tiruchirappalli spans 1 stations with a 0-point spread (min 52, max 52).
Verdict
🏆 Tiruchirappalli has better air quality with an AQI of 6 compared to Hubli-Dharwad's 8.