Prayagraj vs Ujjain
Side-by-side air quality comparison between Prayagraj 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 | Prayagraj | Ujjain |
|---|---|---|
| PM2.5(µg/m³) | 32.10 | 27.30 |
| PM10(µg/m³) | 75.90 | 52.60 |
| NO₂(µg/m³) | 0.60 | 0.70 |
| SO₂(µg/m³) | 5.40 | 6.50 |
| O₃(µg/m³) | 155.00 | 109.00 |
| CO(µg/m³) | 202.00 | 170.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Prayagraj averaged an AQI of 80 while Ujjain averaged 116 — a 36-point (45%) gap, with Ujjain the more polluted and Prayagraj the cleaner of the two. On 872 days when both cities reported, Prayagraj was cleaner on 510 of them; the average daily gap was 43 AQI points.
Seasonality & days
Both cities see their worst air in November on average. Prayagraj logged 0.2% Severe days and 48% Good-or-Satisfactory days; Ujjain was 0.1% Severe and 33.800000000000004% Good-or-Satisfactory. Longest clean-air streaks: Prayagraj 69 days, Ujjain 67 days.
Year-over-year progress
Prayagraj has improved by 42 AQI points (34.4%) from 2021 to 2024; Ujjain has improved by 71 AQI points (38%) over the same window. The worst recorded day for Prayagraj reached AQI 416 at Nagar Nigam (UPPCB) on 2021-11-08; Ujjain hit AQI 500 at Mahakaleshwar Temple (MPPCB) on 2023-03-10.
Station-level disparity
Prayagraj spans 3 CPCB stations with a 9-point spread (min 96, max 105); Ujjain spans 1 stations with a 0-point spread (min 131, max 131).
Verdict
🏆 Ujjain has better air quality with an AQI of 54 compared to Prayagraj's 76.