Dehradun vs Tirumala
Side-by-side air quality comparison between Dehradun and Tirumala.
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 | Tirumala |
|---|---|---|
| PM2.5(µg/m³) | 20.80 | 5.30 |
| PM10(µg/m³) | 20.80 | 6.60 |
| NO₂(µg/m³) | 41.40 | 6.90 |
| SO₂(µg/m³) | 3.80 | 2.00 |
| O₃(µg/m³) | 25.00 | 55.00 |
| CO(µg/m³) | 395.00 | 149.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Dehradun averaged an AQI of 106 while Tirumala averaged 89 — a 17-point (19%) gap, with Dehradun the more polluted and Tirumala the cleaner of the two.
Seasonality & days
Dehradun peaks in January, while Tirumala peaks in November. Dehradun logged 0% Severe days and 62.8% Good-or-Satisfactory days; Tirumala was 0% Severe and 65.8% Good-or-Satisfactory. Longest clean-air streaks: Dehradun 41 days, Tirumala 39 days.
Year-over-year progress
The worst recorded day for Dehradun reached AQI 327 at Doon University (UKPCB) on 2024-01-19; Tirumala hit AQI 173 at Toll Gate (APPCB) on 2016-12-30.
Station-level disparity
Dehradun spans 1 CPCB stations with a 0-point spread (min 98, max 98); Tirumala spans 1 stations with a 0-point spread (min 89, max 89).
Verdict
🏆 Tirumala has better air quality with an AQI of 9 compared to Dehradun's 35.