Noida vs Ujjain
Side-by-side air quality comparison between Noida 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 | Noida | Ujjain |
|---|---|---|
| PM2.5(µg/m³) | 69.60 | 29.30 |
| PM10(µg/m³) | 137.40 | 46.00 |
| NO₂(µg/m³) | 30.10 | 7.60 |
| SO₂(µg/m³) | 17.90 | 16.00 |
| O₃(µg/m³) | 65.00 | 53.00 |
| CO(µg/m³) | 562.00 | 208.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Noida averaged an AQI of 182 while Ujjain averaged 116 — a 66-point (57%) gap, with Noida the more polluted and Ujjain the cleaner of the two. On 2130 days when both cities reported, Ujjain was cleaner on 1886 of them; the average daily gap was 107 AQI points.
Seasonality & days
Both cities see their worst air in November on average. Noida logged 8.9% Severe days and 16.5% Good-or-Satisfactory days; Ujjain was 0.1% Severe and 33.800000000000004% Good-or-Satisfactory. Longest clean-air streaks: Noida 14 days, Ujjain 67 days.
Year-over-year progress
Noida has improved by 79 AQI points (30.3%) from 2017 to 2024; Ujjain has improved by 71 AQI points (38%) over the same window. The worst recorded day for Noida reached AQI 500 at Sector-1 (UPPCB) on 2019-11-01; Ujjain hit AQI 500 at Mahakaleshwar Temple (MPPCB) on 2023-03-10.
Station-level disparity
Noida spans 4 CPCB stations with a 15-point spread (min 195, max 210); Ujjain spans 1 stations with a 0-point spread (min 131, max 131).
Verdict
🏆 Ujjain has better air quality with an AQI of 49 compared to Noida's 133. That's a significant difference of 84 points.