Angul vs Arrah
Side-by-side air quality comparison between Angul and Arrah.
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 | Angul | Arrah |
|---|---|---|
| PM2.5(µg/m³) | 65.90 | 99.00 |
| PM10(µg/m³) | 72.20 | 115.50 |
| NO₂(µg/m³) | 25.60 | 53.70 |
| SO₂(µg/m³) | 5.80 | 13.70 |
| O₃(µg/m³) | 19.00 | 10.00 |
| CO(µg/m³) | 715.00 | 944.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Angul averaged an AQI of 149 while Arrah averaged 123 — a 26-point (21%) gap, with Angul the more polluted and Arrah the cleaner of the two. On 283 days when both cities reported, Arrah was cleaner on 190 of them; the average daily gap was 64 AQI points.
Seasonality & days
Both cities see their worst air in January on average. Angul logged 0% Severe days and 32.1% Good-or-Satisfactory days; Arrah was 0.2% Severe and 32.3% Good-or-Satisfactory. Longest clean-air streaks: Angul 23 days, Arrah 11 days.
Year-over-year progress
Angul has improved by 89 AQI points (37.4%) from 2023 to 2024; Arrah has improved by 175 AQI points (58.7%) over the same window. The worst recorded day for Angul reached AQI 370 at Hakimapada (OSPCB) on 2024-01-29; Arrah hit AQI 420 at New DM Office (BSPCB) on 2021-12-21.
Station-level disparity
Angul spans 1 CPCB stations with a 0-point spread (min 163, max 163); Arrah spans 1 stations with a 0-point spread (min 162, max 162).
Verdict
🏆 Angul has better air quality with an AQI of 120 compared to Arrah's 231. That's a significant difference of 111 points.