Arrah vs Bulandshahr
Side-by-side air quality comparison between Arrah and Bulandshahr.
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 | Bulandshahr |
|---|---|---|
| PM2.5(µg/m³) | 99.00 | 71.00 |
| PM10(µg/m³) | 115.50 | 110.10 |
| NO₂(µg/m³) | 53.70 | 35.60 |
| SO₂(µg/m³) | 13.70 | 9.70 |
| O₃(µg/m³) | 10.00 | 39.00 |
| CO(µg/m³) | 944.00 | 517.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Arrah averaged an AQI of 123 while Bulandshahr averaged 142 — a 19-point (15%) gap, with Bulandshahr the more polluted and Arrah the cleaner of the two. On 861 days when both cities reported, Bulandshahr was cleaner on 433 of them; the average daily gap was 65 AQI points.
Seasonality & days
Arrah peaks in January, while Bulandshahr peaks in November. Arrah logged 0.2% Severe days and 32.3% Good-or-Satisfactory days; Bulandshahr was 3.2% Severe and 27.099999999999998% Good-or-Satisfactory. Longest clean-air streaks: Arrah 11 days, Bulandshahr 41 days.
Year-over-year progress
Arrah has improved by 175 AQI points (58.7%) from 2021 to 2024; Bulandshahr has improved by 82 AQI points (36.6%) over the same window. The worst recorded day for Arrah reached AQI 420 at New DM Office (BSPCB) on 2021-12-21; Bulandshahr hit AQI 500 at Yamunapuram (UPPCB) on 2018-06-13.
Station-level disparity
Arrah spans 1 CPCB stations with a 0-point spread (min 162, max 162); Bulandshahr spans 1 stations with a 0-point spread (min 180, max 180).
Verdict
🏆 Bulandshahr has better air quality with an AQI of 137 compared to Arrah's 231. That's a significant difference of 94 points.