Dewās vs Tumkur
Side-by-side air quality comparison between Dewās and Tumkur.
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 | Tumkur |
|---|---|---|
| PM2.5(µg/m³) | 31.30 | 3.40 |
| PM10(µg/m³) | 47.80 | 4.50 |
| NO₂(µg/m³) | 7.10 | 6.40 |
| SO₂(µg/m³) | 15.10 | 1.30 |
| O₃(µg/m³) | 66.00 | 35.00 |
| CO(µg/m³) | 208.00 | 124.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Dewās averaged an AQI of 98 while Tumkur averaged 88 — a 10-point (11%) gap, with Dewās the more polluted and Tumkur the cleaner of the two. On 482 days when both cities reported, Dewās was cleaner on 260 of them; the average daily gap was 49 AQI points.
Seasonality & days
Both cities see their worst air in December on average. Dewās logged 0% Severe days and 47.7% Good-or-Satisfactory days; Tumkur was 0% Severe and 54% Good-or-Satisfactory. Longest clean-air streaks: Dewās 101 days, Tumkur 20 days.
Year-over-year progress
Dewās has improved by 48 AQI points (32.9%) from 2017 to 2024; Tumkur has improved by 69 AQI points (43.9%) over the same window. The worst recorded day for Dewās reached AQI 327 at Bhopal Chauraha (MPPCB) on 2023-07-01; Tumkur hit AQI 355 at Thimmalapura (KSPCB) on 2023-02-15.
Station-level disparity
Dewās spans 1 CPCB stations with a 0-point spread (min 106, max 106); Tumkur spans 1 stations with a 0-point spread (min 97, max 97).
Verdict
🏆 Tumkur has better air quality with an AQI of 6 compared to Dewās's 53.