Arrah vs Mumbai
Side-by-side air quality comparison between Arrah and Mumbai.
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 | Mumbai |
|---|---|---|
| PM2.5(µg/m³) | 99.00 | 17.80 |
| PM10(µg/m³) | 115.50 | 42.60 |
| NO₂(µg/m³) | 53.70 | 10.10 |
| SO₂(µg/m³) | 13.70 | 10.60 |
| O₃(µg/m³) | 10.00 | 42.00 |
| CO(µg/m³) | 944.00 | 173.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Arrah averaged an AQI of 123 while Mumbai averaged 93 — a 30-point (32%) gap, with Arrah the more polluted and Mumbai the cleaner of the two. On 559 days when both cities reported, Arrah was cleaner on 432 of them; the average daily gap was 94 AQI points.
Seasonality & days
Arrah peaks in January, while Mumbai peaks in December. Arrah logged 0.2% Severe days and 32.3% Good-or-Satisfactory days; Mumbai was 0.5% Severe and 34% Good-or-Satisfactory. Longest clean-air streaks: Arrah 11 days, Mumbai 58 days.
Year-over-year progress
Arrah has improved by 175 AQI points (58.7%) from 2021 to 2024; Mumbai has improved by 4 AQI points (4.1%) over the same window. The worst recorded day for Arrah reached AQI 420 at New DM Office (BSPCB) on 2021-12-21; Mumbai hit AQI 500 at Vile Parle West (MPCB) on 2022-08-15.
Station-level disparity
Arrah spans 1 CPCB stations with a 0-point spread (min 162, max 162); Mumbai spans 29 stations with a 74-point spread (min 77, max 151).
Verdict
🏆 Mumbai has better air quality with an AQI of 43 compared to Arrah's 231. That's a significant difference of 188 points.