Arrah vs Motihari
Side-by-side air quality comparison between Arrah and Motihari.
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 | Motihari |
|---|---|---|
| PM2.5(µg/m³) | 99.00 | 156.00 |
| PM10(µg/m³) | 115.50 | 175.10 |
| NO₂(µg/m³) | 53.70 | 76.90 |
| SO₂(µg/m³) | 13.70 | 22.40 |
| O₃(µg/m³) | 10.00 | 0.00 |
| CO(µg/m³) | 944.00 | 1456.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Arrah averaged an AQI of 123 while Motihari averaged 116 — a 7-point (6%) gap, with Arrah the more polluted and Motihari the cleaner of the two. On 725 days when both cities reported, Motihari was cleaner on 439 of them; the average daily gap was 52 AQI points.
Seasonality & days
Arrah peaks in January, while Motihari peaks in November. Arrah logged 0.2% Severe days and 32.3% Good-or-Satisfactory days; Motihari was 1.2% Severe and 39.1% Good-or-Satisfactory. Longest clean-air streaks: Arrah 11 days, Motihari 26 days.
Year-over-year progress
Arrah has improved by 175 AQI points (58.7%) from 2021 to 2024; Motihari has improved by 106 AQI points (47.7%) over the same window. The worst recorded day for Arrah reached AQI 420 at New DM Office (BSPCB) on 2021-12-21; Motihari hit AQI 448 at Gandak Colony (BSPCB) on 2022-11-17.
Station-level disparity
Arrah spans 1 CPCB stations with a 0-point spread (min 162, max 162); Motihari spans 1 stations with a 0-point spread (min 153, max 153).
Verdict
🏆 Arrah has better air quality with an AQI of 231 compared to Motihari's 328. That's a significant difference of 97 points.