Asansol vs Ujjain
Side-by-side air quality comparison between Asansol 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 | Asansol | Ujjain |
|---|---|---|
| PM2.5(µg/m³) | 91.00 | 29.30 |
| PM10(µg/m³) | 96.20 | 46.00 |
| NO₂(µg/m³) | 48.00 | 7.60 |
| SO₂(µg/m³) | 91.90 | 16.00 |
| O₃(µg/m³) | 58.00 | 53.00 |
| CO(µg/m³) | 838.00 | 208.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Asansol averaged an AQI of 145 while Ujjain averaged 116 — a 29-point (25%) gap, with Asansol the more polluted and Ujjain the cleaner of the two. On 1896 days when both cities reported, Asansol was cleaner on 997 of them; the average daily gap was 56 AQI points.
Seasonality & days
Asansol peaks in December, while Ujjain peaks in November. Asansol logged 0% Severe days and 43.3% Good-or-Satisfactory days; Ujjain was 0.1% Severe and 33.800000000000004% Good-or-Satisfactory. Longest clean-air streaks: Asansol 44 days, Ujjain 67 days.
Year-over-year progress
Asansol has worsened by 12 AQI points (9%) from 2018 to 2024; Ujjain has improved by 71 AQI points (38%) over the same window. The worst recorded day for Asansol reached AQI 394 at Court Area (WBPCB) on 2022-12-13; Ujjain hit AQI 500 at Mahakaleshwar Temple (MPPCB) on 2023-03-10.
Station-level disparity
Asansol spans 4 CPCB stations with a 40-point spread (min 123, max 163); 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 Asansol's 204. That's a significant difference of 155 points.