Arrah vs Korba
Side-by-side air quality comparison between Arrah and Korba.
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
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Arrah averaged an AQI of 123 while Korba averaged 67 — a 56-point (84%) gap, with Arrah the more polluted and Korba the cleaner of the two. On 537 days when both cities reported, Korba was cleaner on 444 of them; the average daily gap was 84 AQI points.
Seasonality & days
Both cities see their worst air in January on average. Arrah logged 0.2% Severe days and 32.3% Good-or-Satisfactory days; Korba was 0% Severe and 78.8% Good-or-Satisfactory. Longest clean-air streaks: Arrah 11 days, Korba 83 days.
Year-over-year progress
Arrah has improved by 175 AQI points (58.7%) from 2021 to 2024; Korba has improved by 19 AQI points (22.1%) over the same window. The worst recorded day for Arrah reached AQI 420 at New DM Office (BSPCB) on 2021-12-21; Korba hit AQI 313 at Urja Nagar (CECB) on 2023-01-04.
Station-level disparity
Arrah spans 1 CPCB stations with a 0-point spread (min 162, max 162); Korba spans 2 stations with a 13-point spread (min 62, max 75).