Arrah vs Bangalore
Side-by-side air quality comparison between Arrah and Bangalore.
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 | Bangalore |
|---|---|---|
| PM2.5(µg/m³) | 49.50 | 3.20 |
| PM10(µg/m³) | 75.90 | 3.40 |
| NO₂(µg/m³) | 0.50 | 2.30 |
| SO₂(µg/m³) | 7.50 | 2.70 |
| O₃(µg/m³) | 190.00 | 88.00 |
| CO(µg/m³) | 317.00 | 222.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Arrah averaged an AQI of 123 while Bangalore averaged 74 — a 49-point (66%) gap, with Arrah the more polluted and Bangalore the cleaner of the two. On 867 days when both cities reported, Bangalore was cleaner on 536 of them; the average daily gap was 74 AQI points.
Seasonality & days
Arrah peaks in January, while Bangalore peaks in March. Arrah logged 0.2% Severe days and 32.3% Good-or-Satisfactory days; Bangalore was 0.5% Severe and 42.6% Good-or-Satisfactory. Longest clean-air streaks: Arrah 11 days, Bangalore 31 days.
Year-over-year progress
Arrah has improved by 175 AQI points (58.7%) from 2021 to 2024; Bangalore has improved by 26 AQI points (26%) over the same window. The worst recorded day for Arrah reached AQI 420 at New DM Office (BSPCB) on 2021-12-21; Bangalore hit AQI 500 at Silk Board (KSPCB) on 2024-01-10.
Station-level disparity
Arrah spans 1 CPCB stations with a 0-point spread (min 162, max 162); Bangalore spans 14 stations with a 50-point spread (min 49, max 99).
Verdict
🏆 Bangalore has better air quality with an AQI of 5 compared to Arrah's 83. That's a significant difference of 78 points.