NE Grant St Collocation Air Quality
Monitoring Station
· Hillsboro, United States
29
Good
Air quality is satisfactory. Enjoy outdoor activities.
Last Reading
Nearby Monitoring Stations
GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast
Calibrated
30
9pm
23
23
23
12am
23
23
23
3am
23
23
21
6am
21
21
21
9am
21
21
—
12pm
—
—
—
3pm
—
—
—
6pm
—
—
CAMS model
adj -4
34
27
27
27
27
27
27
27
27
25
25
25
25
25
25
Air Quality Forecast (24h)
PM2.57.0 µg/m³
✓ WHO
Good
Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-05-29T00:25 UTC.