Dewās vs Tirupati
Side-by-side air quality comparison between Dewās and Tirupati.
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 | Dewās | Tirupati |
|---|---|---|
| PM2.5(µg/m³) | 32.20 | 9.00 |
| PM10(µg/m³) | 47.60 | 10.10 |
| NO₂(µg/m³) | 7.00 | 10.20 |
| SO₂(µg/m³) | 14.50 | 2.50 |
| O₃(µg/m³) | 70.00 | 53.00 |
| CO(µg/m³) | 224.00 | 153.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Dewās averaged an AQI of 98 while Tirupati averaged 75 — a 23-point (31%) gap, with Dewās the more polluted and Tirupati the cleaner of the two. On 452 days when both cities reported, Tirupati was cleaner on 326 of them; the average daily gap was 52 AQI points.
Seasonality & days
Dewās peaks in December, while Tirupati peaks in April. Dewās logged 0% Severe days and 47.7% Good-or-Satisfactory days; Tirupati was 0% Severe and 84% Good-or-Satisfactory. Longest clean-air streaks: Dewās 101 days, Tirupati 36 days.
Year-over-year progress
Dewās has improved by 48 AQI points (32.9%) from 2017 to 2024; Tirupati has improved by 20 AQI points (21.1%) over the same window. The worst recorded day for Dewās reached AQI 327 at Bhopal Chauraha (MPPCB) on 2023-07-01; Tirupati hit AQI 263 at Vaikuntapuram (APPCB) on 2022-11-16.
Station-level disparity
Dewās spans 1 CPCB stations with a 0-point spread (min 106, max 106); Tirupati spans 1 stations with a 0-point spread (min 75, max 75).
Verdict
🏆 Tirupati has better air quality with an AQI of 15 compared to Dewās's 55.