Dehradun vs Sasaram
Side-by-side air quality comparison between Dehradun and Sasaram.
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
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Dehradun averaged an AQI of 106 while Sasaram averaged 109 — a 3-point (3%) gap, with Sasaram the more polluted and Dehradun the cleaner of the two. On 637 days when both cities reported, Dehradun was cleaner on 382 of them; the average daily gap was 53 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; Sasaram was 0.1% Severe and 37% Good-or-Satisfactory. Longest clean-air streaks: Dehradun 41 days, Sasaram 27 days.
Year-over-year progress
Dehradun has worsened by 19 AQI points (21.8%) from 2022 to 2024; Sasaram has improved by 166 AQI points (60.4%) over the same window. The worst recorded day for Dehradun reached AQI 327 at Doon University (UKPCB) on 2024-01-19; Sasaram hit AQI 401 at Dada Peer (BSPCB) on 2021-11-28.
Station-level disparity
Dehradun spans 1 CPCB stations with a 0-point spread (min 98, max 98); Sasaram spans 1 stations with a 0-point spread (min 148, max 148).