Thornhill ES

Monitoring Station · Orinda, United States
20
Good
Air quality is satisfactory. Enjoy outdoor activities.
Last Reading

Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
25 3pm
21
20
22 6pm
22
22
22 9pm
22
22
22 12am
9
9
22 3am
22
22
— 6am
—
—
— 9am
—
—
— 12pm
—
—
Station readings
25
21
20
CAMS model adj -3
25
25
25
25
25
25
25
25
25
25
12
12
25
25
25

Air Quality Trend (24h)

PM2.54.9 µg/m³ ✓ WHO
Good

Nearby Monitoring Stations

22
Montclair ES
0.7 km PM2.5: 5.3 µg/m³
17
Hillcrest ES
1.9 km PM2.5: 4.1 µg/m³
20
Montera MS/Joaquin Miller ES
2.0 km PM2.5: 4.8 µg/m³
17
Chabot ES
3.2 km PM2.5: 4.1 µg/m³
22
Glenview ES
3.4 km PM2.5: 5.2 µg/m³
17
Oakland Tech HS
3.9 km PM2.5: 4.1 µg/m³
18
Edna Brewer MS
4.0 km PM2.5: 4.4 µg/m³
21
Bret Harte MS
4.1 km PM2.5: 5.0 µg/m³

Nearby Cities

19 Orinda 18 Oakland 18 Berkeley 19 Moraga 18 Alameda 18 El Cerrito 19 San Leandro 20 Walnut Creek 19 Pleasant Hill

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-04-09T18:59 UTC.