Dehradun vs Surat
Side-by-side air quality comparison between Dehradun and Surat.
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 | Surat |
|---|---|---|
| PM2.5(µg/m³) | 18.70 | 23.90 |
| PM10(µg/m³) | 18.70 | 45.10 |
| NO₂(µg/m³) | 35.70 | 22.90 |
| SO₂(µg/m³) | 3.50 | 38.50 |
| O₃(µg/m³) | 34.00 | 33.00 |
| CO(µg/m³) | 379.00 | 249.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Dehradun averaged an AQI of 106 while Surat averaged 83 — a 23-point (28%) gap, with Dehradun the more polluted and Surat the cleaner of the two. On 507 days when both cities reported, Dehradun was cleaner on 273 of them; the average daily gap was 69 AQI points.
Seasonality & days
Dehradun peaks in January, while Surat peaks in November. Dehradun logged 0% Severe days and 62.8% Good-or-Satisfactory days; Surat was 0% Severe and 55.9% Good-or-Satisfactory. Longest clean-air streaks: Dehradun 41 days, Surat 55 days.
Year-over-year progress
Dehradun has worsened by 19 AQI points (21.8%) from 2022 to 2024; Surat has improved by 139 AQI points (62.6%) over the same window. The worst recorded day for Dehradun reached AQI 327 at Doon University (UKPCB) on 2024-01-19; Surat hit AQI 384 at Science Center (SMC) on 2023-08-19.
Station-level disparity
Dehradun spans 1 CPCB stations with a 0-point spread (min 98, max 98); Surat spans 1 stations with a 0-point spread (min 123, max 123).
Verdict
🏆 Dehradun has better air quality with an AQI of 31 compared to Surat's 45.