Dehradun vs Dindigul
Side-by-side air quality comparison between Dehradun and Dindigul.
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 | Dindigul |
|---|---|---|
| PM2.5(µg/m³) | 14.40 | 20.10 |
| PM10(µg/m³) | 14.60 | 21.60 |
| NO₂(µg/m³) | 25.40 | 20.20 |
| SO₂(µg/m³) | 4.10 | 3.40 |
| O₃(µg/m³) | 71.00 | 23.00 |
| CO(µg/m³) | 350.00 | 209.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Dehradun averaged an AQI of 106 while Dindigul averaged 61 — a 45-point (74%) gap, with Dehradun the more polluted and Dindigul the cleaner of the two. On 223 days when both cities reported, Dindigul was cleaner on 133 of them; the average daily gap was 65 AQI points.
Seasonality & days
Dehradun peaks in January, while Dindigul peaks in February. Dehradun logged 0% Severe days and 62.8% Good-or-Satisfactory days; Dindigul was 0% Severe and 67.3% Good-or-Satisfactory. Longest clean-air streaks: Dehradun 41 days, Dindigul 22 days.
Year-over-year progress
Dehradun has worsened by 19 AQI points (21.8%) from 2022 to 2024; Dindigul has improved by 29 AQI points (32.2%) over the same window. The worst recorded day for Dehradun reached AQI 327 at Doon University (UKPCB) on 2024-01-19; Dindigul hit AQI 352 at Mendonsa Colony (TNPCB) on 2023-03-12.
Station-level disparity
Dehradun spans 1 CPCB stations with a 0-point spread (min 98, max 98); Dindigul spans 1 stations with a 0-point spread (min 102, max 102).
Verdict
🏆 Dehradun has better air quality with an AQI of 24 compared to Dindigul's 34.