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Air quality near 4139 Alpine Road, Portola Valley
Air quality index (AQI) and PM2.5 air pollution near 4139 Alpine Road, Portola Valley
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Air Quality Map
Real-time 4139 Alpine Road air pollution map
AIR QUALITY DATA CONTRIBUTORS
Find out more about contributors and data sourcesPollen
What is the pollen count in 4139 Alpine Road today?
 | Index | Moderate | |
 | Tree pollen | Moderate | |
 | Grass pollen | Low | |
 | Weed pollen | None |
Source: tomorrow.io
Weather
What is the current weather near 4139 Alpine Road, Portola Valley?
| Weather | Clear sky |
| Temperature | 66.2°F |
| Humidity | 51% |
| Wind | 20.7 mp/h |
| Pressure | 29.9 Hg |
live aqi city ranking
Real-time USA city ranking
| # | city | US AQI |
|---|---|---|
| 1 | Durham, North Carolina | 128 |
| 2 | Yucaipa, California | 71 |
| 3 | Chapel Hill, North Carolina | 70 |
| 4 | Lake Arrowhead, California | 67 |
| 5 | San Antonio, Texas | 67 |
| 6 | San Bernardino, California | 66 |
| 7 | Vernal, Utah | 65 |
| 8 | Redlands, California | 64 |
| 9 | Corpus Christi, Texas | 61 |
| 10 | Pahrump, Nevada | 61 |
(local time)
SEE WORLD AQI RANKING
3D animated air pollution map
live aqi station ranking
Real-time Portola Valley air quality ranking
| # | station | US AQI |
|---|---|---|
| 1 | 4139 Alpine Road | 76 |
| 2 | Lower Sandstone | 58 |
| 3 | LSAC Building 950 | 21 |
| 4 | 14 Arastradero | 20 |
| 5 | Alpine Hills | 19 |
| 6 | San Francisquito Creek Road | 19 |
| 7 | 3249 Alpine Road | 18 |
| 8 | Ladera - Lucero and Mimosa | 18 |
| 9 | Loop Road | 18 |
| 10 | Los Trancos Road | 18 |
(local time)
SEE WORLD AQI RANKING
US AQI
76
live AQI index
Moderate
Overview
What is the current air quality near 4139 Alpine Road, Portola Valley?
| Air pollution level | Air quality index | Main pollutant |
|---|---|---|
| Moderate | 76 US AQI | PM2.5 |
| Pollutants | Concentration | |
|---|---|---|
| PM2.5 | 24.2µg/m³ | |
Health Recommendations
What is the current air quality near 4139 Alpine Road, Portola Valley?
 | Sensitive groups should reduce outdoor exercise |
 | Close your windows to avoid dirty outdoor air GET A MONITOR |
 | Sensitive groups should wear a mask outdoors GET A MASK |
 | Sensitive groups should run an air purifier GET AN AIR PURIFIER |
Forecast
4139 Alpine Road, Portola Valley air quality index (AQI) forecast
| Day | Pollution level | Weather | Temperature | Wind |
|---|---|---|---|---|
| Tuesday, Apr 30 | Good 19 AQI US  | |||
| Wednesday, May 1 | Good 17 AQI US | |||
| Thursday, May 2 | Good 21 AQI US | |||
| Today | Moderate 76 AQI US |  100% | 53.6° 42.8° |  11.2 mp/h |
| Saturday, May 4 | Good 11 AQI US | | 55.4° 41° | 11.2 mp/h |
| Sunday, May 5 | Good 12 AQI US |  | 57.2° 42.8° | 6.7 mp/h |
| Monday, May 6 | Good 17 AQI US | | 60.8° 44.6° | 8.9 mp/h |
| Tuesday, May 7 | Good 14 AQI US | | 69.8° 48.2° | 8.9 mp/h |
| Wednesday, May 8 | Good 15 AQI US | | 75.2° 53.6° | 11.2 mp/h |
| Thursday, May 9 | Good 15 AQI US | | 78.8° 55.4° | 4.5 mp/h |
Interested in hourly forecast? Get the app
News
The latest air quality news and resources.
4139 Alpine Road air quality data attribution
Contributor
Anonymous Contributor
Data source
Data validated and calibrated by IQAirWhere is the cleanest air quality in Portola Valley?
- Coalmine View 6
- Thomas Fogarty Winery 6
- Alpine Road 11
- Pescadero 11
- Hayfields Road 12
- Pomponio Court 12
- Georgia Lane 14
- Bay Laurel 15
- Sausal Drive 15
- Alhambra Court 16
- Ash Lane 16
- Buck Meadow Drive 16
- Sandstone Street 16
- Vista Verde Way 16
- 10 Alhambra Court 17
- 9 Valley Oak Street 17
- Experimental Facilities Dept Shops EFD 17
- Granada Court 17
- 3249 Alpine Road 18
- Ladera - Lucero and Mimosa 18
- Loop Road 18
- Los Trancos Road 18
- Millennium farm 18
- Alpine Hills 19
- San Francisquito Creek Road 19
- 14 Arastradero 20
- LSAC Building 950 21
- Lower Sandstone 58
- 4139 Alpine Road 76
AQI US, Metric