NE Grant St Collocation
Monitoring Station
· Hillsboro, United States
28
Good
Air quality is satisfactory. Enjoy outdoor activities.
Last Reading
Nearby Monitoring Stations
GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast
Calibrated
28
6pm
28
11
11
9pm
0
0
0
12am
0
11
24
3am
49
49
49
6am
49
—
—
9am
—
—
—
12pm
—
—
—
3pm
—
—
Station readings
28
28
CAMS model
adj -26
37
37
37
37
25
25
25
25
37
50
75
75
75
75
Air Quality Trend (24h)
PM2.56.6 µg/m³
✓ WHO
Good
Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-04-09T21:20 UTC.