Ambala vs Prayagraj
Side-by-side air quality comparison between Ambala and Prayagraj.
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 | Prayagraj |
|---|---|---|
| PM2.5(µg/m³) | 44.90 | 61.00 |
| PM10(µg/m³) | 117.80 | 73.80 |
| NO₂(µg/m³) | 13.20 | 45.90 |
| SO₂(µg/m³) | 11.50 | 15.60 |
| O₃(µg/m³) | 100.00 | 36.00 |
| CO(µg/m³) | 547.00 | 240.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Ambala averaged an AQI of 94 while Prayagraj averaged 80 — a 14-point (18%) gap, with Ambala the more polluted and Prayagraj the cleaner of the two. On 856 days when both cities reported, Prayagraj was cleaner on 477 of them; the average daily gap was 45 AQI points.
Seasonality & days
Both cities see their worst air in November on average. Ambala logged 0.2% Severe days and 46.5% Good-or-Satisfactory days; Prayagraj was 0.2% Severe and 48% Good-or-Satisfactory. Longest clean-air streaks: Ambala 44 days, Prayagraj 69 days.
Year-over-year progress
Ambala has improved by 52 AQI points (35.6%) from 2019 to 2024; Prayagraj has improved by 42 AQI points (34.4%) over the same window. The worst recorded day for Ambala reached AQI 452 at Patti Mehar (HSPCB) on 2020-11-04; Prayagraj hit AQI 416 at Nagar Nigam (UPPCB) on 2021-11-08.
Station-level disparity
Ambala spans 1 CPCB stations with a 0-point spread (min 126, max 126); Prayagraj spans 3 stations with a 9-point spread (min 96, max 105).
Verdict
🏆 Prayagraj has better air quality with an AQI of 104 compared to Ambala's 113.