Dehradun vs Muzaffarpur
Side-by-side air quality comparison between Dehradun and Muzaffarpur.
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 | Muzaffarpur |
|---|---|---|
| PM2.5(µg/m³) | 18.70 | 120.60 |
| PM10(µg/m³) | 18.70 | 135.00 |
| NO₂(µg/m³) | 35.70 | 48.60 |
| SO₂(µg/m³) | 3.50 | 19.60 |
| O₃(µg/m³) | 34.00 | 54.00 |
| CO(µg/m³) | 379.00 | 873.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Dehradun averaged an AQI of 106 while Muzaffarpur averaged 151 — a 45-point (42%) gap, with Muzaffarpur the more polluted and Dehradun the cleaner of the two. On 793 days when both cities reported, Dehradun was cleaner on 678 of them; the average daily gap was 96 AQI points.
Seasonality & days
Both cities see their worst air in January on average. Dehradun logged 0% Severe days and 62.8% Good-or-Satisfactory days; Muzaffarpur was 4.5% Severe and 30.900000000000002% Good-or-Satisfactory. Longest clean-air streaks: Dehradun 41 days, Muzaffarpur 26 days.
Year-over-year progress
Dehradun has worsened by 19 AQI points (21.8%) from 2022 to 2024; Muzaffarpur has improved by 62 AQI points (29.1%) over the same window. The worst recorded day for Dehradun reached AQI 327 at Doon University (UKPCB) on 2024-01-19; Muzaffarpur hit AQI 482 at Collectorate (BSPCB) on 2016-01-01.
Station-level disparity
Dehradun spans 1 CPCB stations with a 0-point spread (min 98, max 98); Muzaffarpur spans 3 stations with a 14-point spread (min 171, max 185).
Verdict
🏆 Dehradun has better air quality with an AQI of 31 compared to Muzaffarpur's 301. That's a significant difference of 270 points.