Air Quality History for Union, United States
Historical PM2.5 and AQI trend from monitoring stations near Union, United States.
19
Current AQI
Good Station
Good Station
Air Quality Index Station
187hPM2.5 Station
187h · 1 stationTemperature GFS model
80ptPrecipitation GFS model
mm/dayDaily Summary Station
| Date | AQI | Range | PM2.5 avg | PM10 avg | Hours | Stations |
|---|---|---|---|---|---|---|
| 2026-06-09 | 58 | 20–96 | 19.0 µg/m³ | 21.2 | 2h | 1 |
| 2026-06-08 | 22 | 22–22 | 5.2 µg/m³ | 5.3 | 1h | 1 |
| 2026-06-07 | 32 | 4–167 | 11.4 µg/m³ | 11.6 | 14h | 1 |
| 2026-06-06 | 55 | 12–176 | 17.6 µg/m³ | 17.9 | 24h | 1 |
| 2026-06-05 | 23 | 6–49 | 5.6 µg/m³ | 5.9 | 23h | 1 |
| 2026-06-04 | 9 | 2–20 | 2.2 µg/m³ | 2.3 | 10h | 1 |
| 2026-06-03 | 7 | 4–14 | 1.7 µg/m³ | 1.7 | 8h | 1 |
| 2026-06-02 | 8 | 4–14 | 1.9 µg/m³ | 2.1 | 8h | 1 |
| 2026-06-01 | 6 | 3–13 | 1.6 µg/m³ | 1.7 | 7h | 1 |
| 2026-05-31 | 40 | 4–160 | 16.7 µg/m³ | 17.8 | 9h | 1 |
| 2026-05-30 | 8 | 8–8 | 2.0 µg/m³ | 2.0 | 1h | 1 |
| 2026-05-29 | 6 | 5–7 | 1.5 µg/m³ | 1.5 | 2h | 1 |
| 2026-05-28 | 25 | 8–75 | 7.0 µg/m³ | 7.0 | 5h | 1 |
| 2026-05-27 | 21 | 4–52 | 5.0 µg/m³ | 5.1 | 21h | 1 |
| 2026-05-26 | 21 | 3–57 | 5.2 µg/m³ | 5.4 | 16h | 1 |
| 2026-05-25 | 41 | 11–184 | 16.3 µg/m³ | 16.9 | 18h | 1 |
| 2026-05-24 | 8 | 4–13 | 1.5 µg/m³ | 1.8 | 5h | 1 |
| 2026-05-23 | 4 | 4–5 | 1.1 µg/m³ | 1.2 | 2h | 1 |
| 2026-05-22 | 26 | 6–60 | 6.7 µg/m³ | 7.4 | 4h | 1 |
| 2026-05-21 | 14 | 6–22 | 3.3 µg/m³ | 3.5 | 2h | 1 |
| 2026-05-20 | 14 | 7–19 | 3.4 µg/m³ | 3.5 | 5h | 1 |