Acterra!

Monitoring Station · Palo Alto, United States
23
Good
Air quality is satisfactory. Enjoy outdoor activities.
Last Reading

Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
27 7pm
23
28
28 10pm
28
28
28 1am
28
28
28 4am
28
40
53 7am
53
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— 10am
—
—
— 1pm
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— 4pm
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Station readings
27
23
CAMS model adj +3
25
25
25
25
25
25
25
25
25
25
25
37
50
50

Air Quality Trend (24h)

PM2.55.4 µg/m³ ✓ WHO
Good

Nearby Monitoring Stations

17
Berkeley-Palo Alto
4.6 km PM2.5: 4.1 µg/m³
18
Redwood City, San Mateo, California
10.5 km
17
Redwood City, San Mateo, California
10.5 km
28
N Foothhill Blvd
12.5 km PM2.5: 6.6 µg/m³
23
Environment Education Center
13.7 km PM2.5: 5.4 µg/m³
25
Cupertino City Hall
14.2 km PM2.5: 5.9 µg/m³
31
JFK Middle School
14.3 km PM2.5: 7.5 µg/m³
17
Emerald Hills
14.8 km PM2.5: 4.0 µg/m³

Nearby Cities

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

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-04-09T22:25 UTC.