Arrah vs Dewās
Side-by-side air quality comparison between Arrah and Dewās.
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 | Arrah | Dewās |
|---|---|---|
| PM2.5(µg/m³) | 99.00 | 32.60 |
| PM10(µg/m³) | 115.50 | 47.00 |
| NO₂(µg/m³) | 53.70 | 6.50 |
| SO₂(µg/m³) | 13.70 | 12.50 |
| O₃(µg/m³) | 10.00 | 74.00 |
| CO(µg/m³) | 944.00 | 243.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Arrah averaged an AQI of 123 while Dewās averaged 98 — a 25-point (26%) gap, with Arrah the more polluted and Dewās the cleaner of the two. On 800 days when both cities reported, Dewās was cleaner on 630 of them; the average daily gap was 75 AQI points.
Seasonality & days
Arrah peaks in January, while Dewās peaks in December. Arrah logged 0.2% Severe days and 32.3% Good-or-Satisfactory days; Dewās was 0% Severe and 47.7% Good-or-Satisfactory. Longest clean-air streaks: Arrah 11 days, Dewās 101 days.
Year-over-year progress
Arrah has improved by 175 AQI points (58.7%) from 2021 to 2024; Dewās has improved by 48 AQI points (32.9%) over the same window. The worst recorded day for Arrah reached AQI 420 at New DM Office (BSPCB) on 2021-12-21; Dewās hit AQI 327 at Bhopal Chauraha (MPPCB) on 2023-07-01.
Station-level disparity
Arrah spans 1 CPCB stations with a 0-point spread (min 162, max 162); Dewās spans 1 stations with a 0-point spread (min 106, max 106).
Verdict
🏆 Dewās has better air quality with an AQI of 55 compared to Arrah's 231. That's a significant difference of 176 points.