Dehradun vs Dhanbad
Side-by-side air quality comparison between Dehradun and Dhanbad.
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 | Dehradun | Dhanbad |
|---|---|---|
| PM2.5(µg/m³) | 20.80 | 92.20 |
| PM10(µg/m³) | 20.80 | 100.10 |
| NO₂(µg/m³) | 41.40 | 60.10 |
| SO₂(µg/m³) | 3.80 | 187.20 |
| O₃(µg/m³) | 25.00 | 36.00 |
| CO(µg/m³) | 395.00 | 755.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Dehradun averaged an AQI of 106 while Dhanbad averaged 161 — a 55-point (52%) gap, with Dhanbad the more polluted and Dehradun the cleaner of the two. On 211 days when both cities reported, Dehradun was cleaner on 167 of them; the average daily gap was 83 AQI points.
Seasonality & days
Dehradun peaks in January, while Dhanbad peaks in November. Dehradun logged 0% Severe days and 62.8% Good-or-Satisfactory days; Dhanbad was 0.4% Severe and 3.1% Good-or-Satisfactory. Longest clean-air streaks: Dehradun 41 days, Dhanbad 2 days.
Year-over-year progress
The worst recorded day for Dehradun reached AQI 327 at Doon University (UKPCB) on 2024-01-19; Dhanbad hit AQI 436 at Kalakusuma (DMC) on 2024-04-28.
Station-level disparity
Dehradun spans 1 CPCB stations with a 0-point spread (min 98, max 98); Dhanbad spans 2 stations with a 12-point spread (min 156, max 168).
Verdict
🏆 Dehradun has better air quality with an AQI of 35 compared to Dhanbad's 208. That's a significant difference of 173 points.