Bilaspur vs Dehradun
Side-by-side air quality comparison between Bilaspur 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
Pollutant-level comparison (PM2.5, PM10, O3, NO2, SO2, CO)▾
| Pollutant | Bilaspur | Dehradun |
|---|---|---|
| PM2.5(µg/m³) | 38.80 | 14.40 |
| PM10(µg/m³) | 47.40 | 14.60 |
| NO₂(µg/m³) | 22.60 | 25.40 |
| SO₂(µg/m³) | 15.90 | 4.10 |
| O₃(µg/m³) | 56.00 | 71.00 |
| CO(µg/m³) | 481.00 | 350.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Bilaspur averaged an AQI of 61 while Dehradun averaged 106 — a 45-point (74%) gap, with Dehradun the more polluted and Bilaspur the cleaner of the two. On 670 days when both cities reported, Bilaspur was cleaner on 435 of them; the average daily gap was 46 AQI points.
Seasonality & days
Bilaspur peaks in December, while Dehradun peaks in January. Bilaspur logged 0% Severe days and 88% Good-or-Satisfactory days; Dehradun was 0% Severe and 62.8% Good-or-Satisfactory. Longest clean-air streaks: Bilaspur 66 days, Dehradun 41 days.
Year-over-year progress
Bilaspur has improved by 22 AQI points (26.5%) from 2021 to 2024; Dehradun has worsened by 19 AQI points (21.8%) over the same window. The worst recorded day for Bilaspur reached AQI 259 at Mangala (NTPC) on 2023-03-09; Dehradun hit AQI 327 at Doon University (UKPCB) on 2024-01-19.
Station-level disparity
Bilaspur spans 1 CPCB stations with a 0-point spread (min 69, max 69); Dehradun spans 1 stations with a 0-point spread (min 98, max 98).
Verdict
🏆 Dehradun has better air quality with an AQI of 24 compared to Bilaspur's 65.