Chandigarh vs Ujjain
Side-by-side air quality comparison between Chandigarh 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 | Chandigarh | Ujjain |
|---|---|---|
| PM2.5(µg/m³) | 50.90 | 32.40 |
| PM10(µg/m³) | 66.80 | 47.70 |
| NO₂(µg/m³) | 44.60 | 6.80 |
| SO₂(µg/m³) | 8.10 | 13.70 |
| O₃(µg/m³) | 11.00 | 66.00 |
| CO(µg/m³) | 714.00 | 215.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Chandigarh averaged an AQI of 153 while Ujjain averaged 116 — a 37-point (32%) gap, with Chandigarh the more polluted and Ujjain the cleaner of the two. On 1804 days when both cities reported, Ujjain was cleaner on 947 of them; the average daily gap was 59 AQI points.
Seasonality & days
Chandigarh peaks in January, while Ujjain peaks in November. Chandigarh logged 0.3% Severe days and 39.9% Good-or-Satisfactory days; Ujjain was 0.1% Severe and 33.800000000000004% Good-or-Satisfactory. Longest clean-air streaks: Chandigarh 92 days, Ujjain 67 days.
Year-over-year progress
Chandigarh has worsened by 27 AQI points (21.4%) from 2019 to 2024; Ujjain has improved by 71 AQI points (38%) over the same window. The worst recorded day for Chandigarh reached AQI 452 at Sector-53 (CPCC) on 2022-11-09; Ujjain hit AQI 500 at Mahakaleshwar Temple (MPPCB) on 2023-03-10.
Station-level disparity
Chandigarh spans 3 CPCB stations with a 43-point spread (min 107, max 150); 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 Chandigarh's 85.