Arrah vs Rourkela
Side-by-side air quality comparison between Arrah and Rourkela.
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 | Rourkela |
|---|---|---|
| PM2.5(µg/m³) | 99.00 | 107.60 |
| PM10(µg/m³) | 115.50 | 119.70 |
| NO₂(µg/m³) | 53.70 | 48.00 |
| SO₂(µg/m³) | 13.70 | 17.00 |
| O₃(µg/m³) | 10.00 | 26.00 |
| CO(µg/m³) | 944.00 | 365.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Arrah averaged an AQI of 123 while Rourkela averaged 115 — a 8-point (7%) gap, with Arrah the more polluted and Rourkela the cleaner of the two. On 260 days when both cities reported, Arrah was cleaner on 169 of them; the average daily gap was 73 AQI points.
Seasonality & days
Arrah peaks in January, while Rourkela peaks in November. Arrah logged 0.2% Severe days and 32.3% Good-or-Satisfactory days; Rourkela was 0% Severe and 32.9% Good-or-Satisfactory. Longest clean-air streaks: Arrah 11 days, Rourkela 60 days.
Year-over-year progress
Arrah has improved by 175 AQI points (58.7%) from 2021 to 2024; Rourkela has improved by 112 AQI points (49.3%) over the same window. The worst recorded day for Arrah reached AQI 420 at New DM Office (BSPCB) on 2021-12-21; Rourkela hit AQI 344 at Raghunathpali (OSPCB) on 2024-01-01.
Station-level disparity
Arrah spans 1 CPCB stations with a 0-point spread (min 162, max 162); Rourkela spans 3 stations with a 29-point spread (min 106, max 135).
Verdict
🏆 Arrah has better air quality with an AQI of 231 compared to Rourkela's 259.