Hosur vs Ujjain
Side-by-side air quality comparison between Hosur 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 | Hosur | Ujjain |
|---|---|---|
| PM2.5(µg/m³) | 3.50 | 27.30 |
| PM10(µg/m³) | 4.40 | 52.60 |
| NO₂(µg/m³) | 1.50 | 0.70 |
| SO₂(µg/m³) | 2.40 | 6.50 |
| O₃(µg/m³) | 88.00 | 109.00 |
| CO(µg/m³) | 128.00 | 170.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2022, Hosur averaged an AQI of 90 while Ujjain averaged 116 — a 26-point (29%) gap, with Ujjain the more polluted and Hosur the cleaner of the two. On 89 days when both cities reported, Hosur was cleaner on 65 of them; the average daily gap was 41 AQI points.
Seasonality & days
Hosur peaks in December, while Ujjain peaks in November. Hosur logged 0% Severe days and 73.89999999999999% Good-or-Satisfactory days; Ujjain was 0.1% Severe and 33.800000000000004% Good-or-Satisfactory. Longest clean-air streaks: Hosur 10 days, Ujjain 67 days.
Year-over-year progress
The worst recorded day for Hosur reached AQI 232 at SIPCOT Phase-1 (TNPCB) on 2022-10-25; Ujjain hit AQI 500 at Mahakaleshwar Temple (MPPCB) on 2023-03-10.
Station-level disparity
Hosur spans 1 CPCB stations with a 0-point spread (min 90, max 90); Ujjain spans 1 stations with a 0-point spread (min 131, max 131).
Verdict
🏆 Hosur has better air quality with an AQI of 6 compared to Ujjain's 54.