Air Quality History for Alum Rock, United States
Historical PM2.5 and AQI trend from monitoring stations near Alum Rock, United States.
54
Current AQI
Moderate Station
Moderate Station
Air Quality Index Station
458hPM2.5 Station
458h · 79 stationsTemperature GFS model
80ptPrecipitation GFS model
mm/dayDaily Summary Station
| Date | AQI | Range | PM2.5 avg | Hours | Stations |
|---|---|---|---|---|---|
| 2026-07-21 | 31 | 24–56 | 7.4 µg/m³ | 23h | 76 |
| 2026-07-20 | 26 | 19–75 | 6.5 µg/m³ | 24h | 72 |
| 2026-07-19 | 28 | 23–57 | 6.6 µg/m³ | 24h | 75 |
| 2026-07-18 | 30 | 24–52 | 7.1 µg/m³ | 24h | 75 |
| 2026-07-17 | 35 | 31–38 | 8.4 µg/m³ | 24h | 77 |
| 2026-07-16 | 43 | 20–250 | 16.2 µg/m³ | 24h | 73 |
| 2026-07-15 | 35 | 29–58 | 8.6 µg/m³ | 24h | 76 |
| 2026-07-14 | 33 | 28–63 | 8.1 µg/m³ | 24h | 75 |
| 2026-07-13 | 29 | 25–40 | 7.1 µg/m³ | 24h | 77 |
| 2026-07-12 | 24 | 21–33 | 5.9 µg/m³ | 24h | 73 |
| 2026-07-11 | 27 | 11–61 | 6.6 µg/m³ | 24h | 60 |
| 2026-07-10 | 37 | 29–56 | 8.9 µg/m³ | 24h | 73 |
| 2026-07-09 | 25 | 18–48 | 6.0 µg/m³ | 24h | 75 |
| 2026-07-08 | 26 | 24–28 | 6.2 µg/m³ | 24h | 79 |
| 2026-07-07 | 21 | 17–33 | 5.1 µg/m³ | 24h | 79 |
| 2026-07-06 | 19 | 15–26 | 4.5 µg/m³ | 13h | 73 |
| 2026-07-05 | 33 | 17–78 | 8.8 µg/m³ | 24h | 80 |
| 2026-07-04 | 23 | 20–28 | 5.6 µg/m³ | 24h | 80 |
| 2026-07-03 | 28 | 24–34 | 6.7 µg/m³ | 24h | 80 |
| 2026-07-02 | 34 | 28–71 | 8.5 µg/m³ | 14h | 63 |