Acterra!

Monitoring Station · Palo Alto, United States
27
Good
Air quality is satisfactory. Enjoy outdoor activities.
Last Reading

Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
28 5pm
28
27
29 8pm
29
29
29 11pm
29
29
29 2am
29
29
29 5am
41
54
— 8am
—
—
— 11am
—
—
— 2pm
—
—
Station readings
28
28
27
CAMS model adj +4
25
25
25
25
25
25
25
25
25
25
25
25
25
37
50

Air Quality Trend (24h)

PM2.56.5 µg/m³ ✓ WHO
Good

Nearby Monitoring Stations

21
Berkeley-Palo Alto
4.6 km PM2.5: 5.1 µg/m³
17
Redwood City, San Mateo, California
10.5 km
28
N Foothhill Blvd
12.5 km PM2.5: 6.7 µg/m³
22
Environment Education Center
13.7 km PM2.5: 5.3 µg/m³
25
Cupertino City Hall
14.2 km PM2.5: 5.9 µg/m³
34
JFK Middle School
14.3 km PM2.5: 8.1 µg/m³
18
Emerald Hills
14.8 km PM2.5: 4.3 µg/m³
34
San Jose - Jackson St, Santa Clara, California
20.6 km

Nearby Cities

25 Palo Alto 25 East Palo Alto 27 Los Altos 27 Mountain View 25 Menlo Park 27 Sunnyvale 14 Redwood City 27 Cupertino 28 Santa Clara

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-04-09T20:34 UTC.