Bulandshahr vs Dehradun
Side-by-side air quality comparison between Bulandshahr and Dehradun.
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, Bulandshahr averaged an AQI of 142 while Dehradun averaged 106 — a 36-point (34%) gap, with Bulandshahr the more polluted and Dehradun the cleaner of the two. On 791 days when both cities reported, Dehradun was cleaner on 636 of them; the average daily gap was 57 AQI points.
Seasonality & days
Bulandshahr peaks in November, while Dehradun peaks in January. Bulandshahr logged 3.2% Severe days and 27.099999999999998% Good-or-Satisfactory days; Dehradun was 0% Severe and 62.8% Good-or-Satisfactory. Longest clean-air streaks: Bulandshahr 41 days, Dehradun 41 days.
Year-over-year progress
Bulandshahr has improved by 82 AQI points (36.6%) from 2018 to 2024; Dehradun has worsened by 19 AQI points (21.8%) over the same window. The worst recorded day for Bulandshahr reached AQI 500 at Yamunapuram (UPPCB) on 2018-06-13; Dehradun hit AQI 327 at Doon University (UKPCB) on 2024-01-19.
Station-level disparity
Bulandshahr spans 1 CPCB stations with a 0-point spread (min 180, max 180); Dehradun spans 1 stations with a 0-point spread (min 98, max 98).