Arrah vs Patna
Side-by-side air quality comparison between Arrah and Patna.
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 Patna averaged 172 — a 49-point (40%) gap, with Patna the more polluted and Arrah the cleaner of the two. On 867 days when both cities reported, Arrah was cleaner on 823 of them; the average daily gap was 99 AQI points.
Seasonality & days
Arrah peaks in January, while Patna peaks in December. Arrah logged 0.2% Severe days and 32.3% Good-or-Satisfactory days; Patna was 7.5% Severe and 19.400000000000002% Good-or-Satisfactory. Longest clean-air streaks: Arrah 11 days, Patna 30 days.
Year-over-year progress
Arrah has improved by 175 AQI points (58.7%) from 2021 to 2024; Patna has improved by 40 AQI points (18.9%) over the same window. The worst recorded day for Arrah reached AQI 420 at New DM Office (BSPCB) on 2021-12-21; Patna hit AQI 491 at IGSC Planetarium Complex (BSPCB) on 2016-01-01.
Station-level disparity
Arrah spans 1 CPCB stations with a 0-point spread (min 162, max 162); Patna spans 6 stations with a 39-point spread (min 154, max 193).