Arrah vs Puducherry
Side-by-side air quality comparison between Arrah and Puducherry.
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 Puducherry averaged 55 — a 68-point (124%) gap, with Arrah the more polluted and Puducherry the cleaner of the two. On 823 days when both cities reported, Puducherry was cleaner on 767 of them; the average daily gap was 107 AQI points.
Seasonality & days
Arrah peaks in January, while Puducherry peaks in December. Arrah logged 0.2% Severe days and 32.3% Good-or-Satisfactory days; Puducherry was 0% Severe and 95.4% Good-or-Satisfactory. Longest clean-air streaks: Arrah 11 days, Puducherry 117 days.
Year-over-year progress
Arrah has improved by 175 AQI points (58.7%) from 2021 to 2024; Puducherry has worsened by 1 AQI points (1.9%) over the same window. The worst recorded day for Arrah reached AQI 420 at New DM Office (BSPCB) on 2021-12-21; Puducherry hit AQI 274 at Jawahar Nagar (PPCC) on 2022-10-25.
Station-level disparity
Arrah spans 1 CPCB stations with a 0-point spread (min 162, max 162); Puducherry spans 1 stations with a 0-point spread (min 56, max 56).