Arrah vs Noida
Side-by-side air quality comparison between Arrah and Noida.
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 | Noida |
|---|---|---|
| PM2.5(µg/m³) | 102.90 | 69.60 |
| PM10(µg/m³) | 117.10 | 137.40 |
| NO₂(µg/m³) | 42.70 | 30.10 |
| SO₂(µg/m³) | 15.30 | 17.90 |
| O₃(µg/m³) | 46.00 | 65.00 |
| CO(µg/m³) | 841.00 | 562.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Arrah averaged an AQI of 123 while Noida averaged 182 — a 59-point (48%) gap, with Noida the more polluted and Arrah the cleaner of the two. On 559 days when both cities reported, Arrah was cleaner on 469 of them; the average daily gap was 101 AQI points.
Seasonality & days
Arrah peaks in January, while Noida peaks in November. Arrah logged 0.2% Severe days and 32.3% Good-or-Satisfactory days; Noida was 8.9% Severe and 16.5% Good-or-Satisfactory. Longest clean-air streaks: Arrah 11 days, Noida 14 days.
Year-over-year progress
Arrah has improved by 175 AQI points (58.7%) from 2021 to 2024; Noida has improved by 79 AQI points (30.3%) over the same window. The worst recorded day for Arrah reached AQI 420 at New DM Office (BSPCB) on 2021-12-21; Noida hit AQI 500 at Sector-1 (UPPCB) on 2019-11-01.
Station-level disparity
Arrah spans 1 CPCB stations with a 0-point spread (min 162, max 162); Noida spans 4 stations with a 15-point spread (min 195, max 210).
Verdict
🏆 Noida has better air quality with an AQI of 133 compared to Arrah's 244. That's a significant difference of 111 points.