Ambala vs Ujjain
Side-by-side air quality comparison between Ambala and Ujjain.
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 | Ujjain |
|---|---|---|
| PM2.5(µg/m³) | 47.60 | 32.40 |
| PM10(µg/m³) | 70.10 | 47.70 |
| NO₂(µg/m³) | 23.90 | 6.80 |
| SO₂(µg/m³) | 10.30 | 13.70 |
| O₃(µg/m³) | 56.00 | 66.00 |
| CO(µg/m³) | 618.00 | 215.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Ambala averaged an AQI of 94 while Ujjain averaged 116 — a 22-point (23%) gap, with Ujjain the more polluted and Ambala the cleaner of the two. On 1877 days when both cities reported, Ambala was cleaner on 984 of them; the average daily gap was 51 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; Ujjain was 0.1% Severe and 33.800000000000004% Good-or-Satisfactory. Longest clean-air streaks: Ambala 44 days, Ujjain 67 days.
Year-over-year progress
Ambala has improved by 52 AQI points (35.6%) from 2019 to 2024; Ujjain has improved by 71 AQI points (38%) over the same window. The worst recorded day for Ambala reached AQI 452 at Patti Mehar (HSPCB) on 2020-11-04; Ujjain hit AQI 500 at Mahakaleshwar Temple (MPPCB) on 2023-03-10.
Station-level disparity
Ambala spans 1 CPCB stations with a 0-point spread (min 126, max 126); Ujjain spans 1 stations with a 0-point spread (min 131, max 131).
Verdict
🏆 Ujjain has better air quality with an AQI of 55 compared to Ambala's 80.