Emerald Hills Air Quality

Monitoring Station · Redwood City, United States
15
Good
Air quality is satisfactory. Enjoy outdoor activities.
Last Reading

Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
16 9pm
15
17
17 12am
17
17
17 3am
17
17
17 6am
17
17
17 9am
17
17
— 12pm
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— 3pm
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— 6pm
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Station readings
16
15
CAMS model adj -37
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54

Air Quality Forecast (24h)

PM2.53.7 µg/m³ ✓ WHO
Good
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Nearby Monitoring Stations

28
Redwood City, San Mateo, California
6.5 km PM2.5: 6.7 µg/m³
25
Redwood City, San Mateo, California
6.5 km PM2.5: 6.0 µg/m³
14
Berkeley-Palo Alto
10.7 km PM2.5: 3.4 µg/m³
15
Acterra!
14.8 km PM2.5: 3.7 µg/m³
18
Parkside Intermediate School
22.3 km PM2.5: 4.3 µg/m³
28
Parkside Intermediate School (redeployment)
22.3 km PM2.5: 6.6 µg/m³
17
Belle Air School
22.4 km PM2.5: 4.1 µg/m³
15
N Foothhill Blvd
22.9 km PM2.5: 3.7 µg/m³

Nearby Cities

17 Redwood City 18 San Carlos 18 Belmont 15 Menlo Park 15 Palo Alto 15 East Palo Alto 19 Foster City 20 San Mateo 16 Los Altos

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-06-09T00:59 UTC.