Dehradun vs Sirsa
Side-by-side air quality comparison between Dehradun and Sirsa.
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 | Sirsa |
|---|---|---|
| PM2.5(µg/m³) | 14.40 | 70.50 |
| PM10(µg/m³) | 14.60 | 238.00 |
| NO₂(µg/m³) | 25.40 | 27.50 |
| SO₂(µg/m³) | 4.10 | 8.40 |
| O₃(µg/m³) | 71.00 | 54.00 |
| CO(µg/m³) | 350.00 | 316.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Dehradun averaged an AQI of 106 while Sirsa averaged 115 — a 9-point (8%) gap, with Sirsa the more polluted and Dehradun the cleaner of the two. On 441 days when both cities reported, Dehradun was cleaner on 308 of them; the average daily gap was 58 AQI points.
Seasonality & days
Dehradun peaks in January, while Sirsa peaks in November. Dehradun logged 0% Severe days and 62.8% Good-or-Satisfactory days; Sirsa was 0.5% Severe and 41.300000000000004% Good-or-Satisfactory. Longest clean-air streaks: Dehradun 41 days, Sirsa 40 days.
Year-over-year progress
Dehradun has worsened by 19 AQI points (21.8%) from 2022 to 2024; Sirsa has improved by 48 AQI points (29.4%) over the same window. The worst recorded day for Dehradun reached AQI 327 at Doon University (UKPCB) on 2024-01-19; Sirsa hit AQI 462 at F-Block (HSPCB) on 2019-11-01.
Station-level disparity
Dehradun spans 1 CPCB stations with a 0-point spread (min 98, max 98); Sirsa spans 1 stations with a 0-point spread (min 132, max 132).
Verdict
🏆 Dehradun has better air quality with an AQI of 24 compared to Sirsa's 192. That's a significant difference of 168 points.