Ambala vs Arrah
Side-by-side air quality comparison between Ambala and Arrah.
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 | Ambala | Arrah |
|---|---|---|
| PM2.5(µg/m³) | 47.60 | 99.00 |
| PM10(µg/m³) | 70.10 | 115.50 |
| NO₂(µg/m³) | 23.90 | 53.70 |
| SO₂(µg/m³) | 10.30 | 13.70 |
| O₃(µg/m³) | 56.00 | 10.00 |
| CO(µg/m³) | 618.00 | 944.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Ambala averaged an AQI of 94 while Arrah averaged 123 — a 29-point (31%) gap, with Arrah the more polluted and Ambala the cleaner of the two. On 771 days when both cities reported, Ambala was cleaner on 496 of them; the average daily gap was 77 AQI points.
Seasonality & days
Ambala peaks in November, while Arrah peaks in January. Ambala logged 0.2% Severe days and 46.5% Good-or-Satisfactory days; Arrah was 0.2% Severe and 32.3% Good-or-Satisfactory. Longest clean-air streaks: Ambala 44 days, Arrah 11 days.
Year-over-year progress
Ambala has improved by 52 AQI points (35.6%) from 2019 to 2024; Arrah has improved by 175 AQI points (58.7%) over the same window. The worst recorded day for Ambala reached AQI 452 at Patti Mehar (HSPCB) on 2020-11-04; Arrah hit AQI 420 at New DM Office (BSPCB) on 2021-12-21.
Station-level disparity
Ambala spans 1 CPCB stations with a 0-point spread (min 126, max 126); Arrah spans 1 stations with a 0-point spread (min 162, max 162).
Verdict
🏆 Ambala has better air quality with an AQI of 80 compared to Arrah's 231. That's a significant difference of 151 points.