Emerald Hills Air Quality

Monitoring Station · Redwood City, United States
30
Good
Air quality is satisfactory. Enjoy outdoor activities.
Last Reading

Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
28 12am
30
53
53 3am
53
53
53 6am
53
33
33 9am
33
33
26 12pm
33
33
— 3pm
—
—
— 6pm
—
—
— 9pm
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Station readings
28
30
CAMS model adj -1
34
34
54
54
54
54
54
54
34
34
34
34
27
34
34

Air Quality Forecast (24h)

PM2.57.1 µg/m³ ✓ WHO
Good
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Nearby Monitoring Stations

34
Redwood City, San Mateo, California
6.5 km PM2.5: 8.2 µg/m³
28
Berkeley-Palo Alto
10.7 km PM2.5: 6.7 µg/m³
35
Acterra!
14.8 km PM2.5: 8.5 µg/m³
35
Garden Ave Residence
22.3 km PM2.5: 8.3 µg/m³
40
Parkside Intermediate School
22.3 km PM2.5: 9.5 µg/m³
32
Belle Air School
22.4 km PM2.5: 7.6 µg/m³
32
San Bruno School District Office
22.8 km PM2.5: 7.6 µg/m³
33
N Foothhill Blvd
22.9 km PM2.5: 7.9 µg/m³

Nearby Cities

63 Redwood City 64 San Carlos 64 Belmont 68 Menlo Park 68 Palo Alto 68 East Palo Alto 64 Foster City 91 San Mateo 63 Los Altos

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-08-08T03:49 UTC.