Get a monitor and contributor to air quality data in your city.
Air Quality 
Air Monitors
Air Purifiers
For Business
News
Support
Air quality in Portola Valley
Air quality index (AQI) and PM2.5 air pollution in Portola Valley
4.7K people follow this city
Portola Valley Air Quality Map
Real-time Portola Valley air pollution map
AIR QUALITY DATA CONTRIBUTORS
Anonymous contributor
See all
Weather
What is the current weather in Portola Valley?
| Weather | Broken clouds |
| Temperature | 66.2°F |
| Humidity | 82% |
| Wind | 7.4 mp/h |
| Pressure | 30 Hg |
live aqi city ranking
Real-time USA city ranking
| # | city | US AQI |
|---|---|---|
| 1 |  Mecca, California | 90 |
| 2 | Beaver, Pennsylvania | 68 |
| 3 | Campo, California | 68 |
| 4 | Pahrump, Nevada | 68 |
| 5 | Yucaipa, California | 66 |
| 6 | Monaca, Pennsylvania | 65 |
| 7 | New Brighton, Pennsylvania | 65 |
| 8 | Oak Hills, California | 65 |
| 9 | Aliquippa, Pennsylvania | 64 |
| 10 | Lubbock, Texas | 63 |
(local time)
SEE WORLD AQI RANKING
3D animated air pollution map
live Portola Valley aqi ranking
Real-time Portola Valley air quality ranking
| # | station | US AQI |
|---|---|---|
| 1 | 3249 Alpine Road | 54 |
| 2 | Lower Sandstone | 52 |
| 3 | 4139 Alpine Road | 43 |
| 4 | 14 Arastradero | 19 |
| 5 | LSAC Building 950 | 19 |
| 6 | San Francisquito Creek Road | 16 |
| 7 | Ladera - Lucero and Mimosa | 14 |
| 8 | Sandstone Street | 13 |
| 9 | 10 Alhambra Court | 12 |
| 10 | 9 Valley Oak Street | 12 |
(local time)
SEE WORLD AQI RANKING
US AQI
12
live AQI index
Good
Overview
What is the current air quality in Portola Valley?
| Air pollution level | Air quality index | Main pollutant |
|---|---|---|
| Good | 12 US AQI | PM2.5 |
| Pollutants | Concentration | |
|---|---|---|
| PM2.5 | 2.2µg/m³ | |
✓
PM2.5 concentration in Portola Valley air currently meets the WHO annual air quality guideline value
Health Recommendations
What is the current air quality in Portola Valley?
 | Enjoy outdoor activities |
 | Open your windows to bring clean, fresh air indoors GET A MONITOR |
Forecast
Portola Valley air quality index (AQI) forecast
| Day | Pollution level | Weather | Temperature | Wind |
|---|---|---|---|---|
| Thursday, May 30 | Good 31 AQI US |  | 78.8° 48.2° |  6.7 mp/h |
| Friday, May 31 | Good 26 AQI US | | 68° 48.2° | 11.2 mp/h |
| Saturday, Jun 1 | Good 12 AQI US | | 71.6° 53.6° | 8.9 mp/h |
| Today | Good 12 AQI US | | 62.6° 50° | 8.9 mp/h |
| Monday, Jun 3 | Good 35 AQI US | | 75.2° 48.2° | 11.2 mp/h |
| Tuesday, Jun 4 | Moderate 61 AQI US  | | 75.2° 53.6° | 8.9 mp/h |
| Wednesday, Jun 5 | Good 43 AQI US | | 68° 51.8° | 6.7 mp/h |
| Thursday, Jun 6 | Good 34 AQI US | | 68° 50° | 6.7 mp/h |
| Friday, Jun 7 | Good 33 AQI US | | 66.2° 51.8° | 8.9 mp/h |
| Saturday, Jun 8 | Good 30 AQI US | | 68° 50° | 6.7 mp/h |
Interested in hourly forecast? Get the app
News
The latest air quality news and resources.
How to best protect from air pollution?
Portola Valley air quality data attribution
26Contributors
- 26 Anonymous contributors
26 stations
26 Anonymous Contributors
1 Data source
Data validated and calibrated by IQAirWhere is the cleanest air quality in Portola Valley?
- Alpine Road 2
- Pescadero 2
- Alpine Hills 8
- Experimental Facilities Dept Shops EFD 8
- Ash Lane 9
- Hayfields Road 9
- Buck Meadow Drive 11
- Loop Road 11
- Millennium farm 11
- 10 Alhambra Court 12
- 9 Valley Oak Street 12
- Alhambra Court 12
- Bay Laurel 12
- Georgia Lane 12
- Granada Court 12
- Los Trancos Road 12
- Pomponio Court 12
- Sausal Drive 12
- Sandstone Street 13
- Ladera - Lucero and Mimosa 14
- San Francisquito Creek Road 16
- 14 Arastradero 19
- LSAC Building 950 19
- 4139 Alpine Road 43
- Lower Sandstone 52
- 3249 Alpine Road 54
AQI US, Metric