Charkhi Dādri vs Dehradun
Side-by-side air quality comparison between Charkhi Dādri 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 | Charkhi Dādri | Dehradun |
|---|---|---|
| PM2.5(µg/m³) | 67.50 | 20.80 |
| PM10(µg/m³) | 175.10 | 20.80 |
| NO₂(µg/m³) | 19.80 | 41.40 |
| SO₂(µg/m³) | 10.70 | 3.80 |
| O₃(µg/m³) | 65.00 | 25.00 |
| CO(µg/m³) | 544.00 | 395.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Charkhi Dādri averaged an AQI of 145 while Dehradun averaged 106 — a 39-point (37%) gap, with Charkhi Dādri the more polluted and Dehradun the cleaner of the two. On 767 days when both cities reported, Dehradun was cleaner on 593 of them; the average daily gap was 71 AQI points.
Seasonality & days
Charkhi Dādri peaks in November, while Dehradun peaks in January. Charkhi Dādri logged 0.7% Severe days and 28% Good-or-Satisfactory days; Dehradun was 0% Severe and 62.8% Good-or-Satisfactory. Longest clean-air streaks: Charkhi Dādri 48 days, Dehradun 41 days.
Year-over-year progress
Charkhi Dādri has improved by 51 AQI points (26%) from 2020 to 2024; Dehradun has worsened by 19 AQI points (21.8%) over the same window. The worst recorded day for Charkhi Dādri reached AQI 470 at Mini Secretariat Charkhi (HSPCB) on 2021-11-12; Dehradun hit AQI 327 at Doon University (UKPCB) on 2024-01-19.
Station-level disparity
Charkhi Dādri spans 1 CPCB stations with a 0-point spread (min 162, max 162); Dehradun spans 1 stations with a 0-point spread (min 98, max 98).
Verdict
🏆 Dehradun has better air quality with an AQI of 35 compared to Charkhi Dādri's 151. That's a significant difference of 116 points.