Arrah vs Lucknow
Side-by-side air quality comparison between Arrah and Lucknow.
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 | Lucknow |
|---|---|---|
| PM2.5(µg/m³) | 102.90 | 105.20 |
| PM10(µg/m³) | 117.10 | 155.50 |
| NO₂(µg/m³) | 42.70 | 59.70 |
| SO₂(µg/m³) | 15.30 | 25.50 |
| O₃(µg/m³) | 46.00 | 41.00 |
| CO(µg/m³) | 841.00 | 416.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Arrah averaged an AQI of 123 while Lucknow averaged 127 — a 4-point (3%) gap, with Lucknow the more polluted and Arrah the cleaner of the two. On 559 days when both cities reported, Arrah was cleaner on 427 of them; the average daily gap was 75 AQI points.
Seasonality & days
Arrah peaks in January, while Lucknow peaks in November. Arrah logged 0.2% Severe days and 32.3% Good-or-Satisfactory days; Lucknow was 6.6% Severe and 19.4% Good-or-Satisfactory. Longest clean-air streaks: Arrah 11 days, Lucknow 45 days.
Year-over-year progress
Arrah has improved by 175 AQI points (58.7%) from 2021 to 2024; Lucknow has improved by 89 AQI points (41.2%) over the same window. The worst recorded day for Arrah reached AQI 420 at New DM Office (BSPCB) on 2021-12-21; Lucknow hit AQI 500 at Lalbagh (CPCB) on 2017-11-09.
Station-level disparity
Arrah spans 1 CPCB stations with a 0-point spread (min 162, max 162); Lucknow spans 7 stations with a 119-point spread (min 97, max 216).
Verdict
🏆 Arrah has better air quality with an AQI of 244 compared to Lucknow's 251.