Dehradun vs Hassan
Side-by-side air quality comparison between Dehradun and Hassan.
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 | Hassan |
|---|---|---|
| PM2.5(µg/m³) | 20.80 | 2.60 |
| PM10(µg/m³) | 20.80 | 3.70 |
| NO₂(µg/m³) | 41.40 | 5.10 |
| SO₂(µg/m³) | 3.80 | 0.50 |
| O₃(µg/m³) | 25.00 | 34.00 |
| CO(µg/m³) | 395.00 | 117.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Dehradun averaged an AQI of 106 while Hassan averaged 60 — a 46-point (77%) gap, with Dehradun the more polluted and Hassan the cleaner of the two. On 544 days when both cities reported, Hassan was cleaner on 396 of them; the average daily gap was 44 AQI points.
Seasonality & days
Dehradun peaks in January, while Hassan peaks in March. Dehradun logged 0% Severe days and 62.8% Good-or-Satisfactory days; Hassan was 0% Severe and 92.5% Good-or-Satisfactory. Longest clean-air streaks: Dehradun 41 days, Hassan 51 days.
Year-over-year progress
Dehradun has worsened by 19 AQI points (21.8%) from 2022 to 2024; Hassan has improved by 4 AQI points (6.2%) over the same window. The worst recorded day for Dehradun reached AQI 327 at Doon University (UKPCB) on 2024-01-19; Hassan hit AQI 212 at BKatihalli (KSPCB) on 2024-05-11.
Station-level disparity
Dehradun spans 1 CPCB stations with a 0-point spread (min 98, max 98); Hassan spans 1 stations with a 0-point spread (min 63, max 63).
Verdict
🏆 Hassan has better air quality with an AQI of 4 compared to Dehradun's 35.