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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 | 60.8°F |
| Humidity | 64% |
| Wind | 13.8 mp/h |
| Pressure | 29.9 Hg |
live aqi city ranking
Real-time USA city ranking
| # | city | US AQI |
|---|---|---|
| 1 | Lake Arrowhead, California | 68 |
| 2 | Worcester, Massachusetts | 68 |
| 3 | Corpus Christi, Texas | 65 |
| 4 | Yucaipa, California | 64 |
| 5 | Durham, North Carolina | 61 |
| 6 | Muskegon, Michigan | 58 |
| 7 | Pahrump, Nevada | 58 |
| 8 | Carlsbad, New Mexico | 56 |
| 9 | Banning, California | 55 |
| 10 | Claremont, California | 55 |
(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 | Lower Sandstone | 54 |
| 2 | Antonio Court | 26 |
| 3 | 4139 Alpine Road | 22 |
| 4 | 14 Arastradero | 16 |
| 5 | LSAC Building 950 | 16 |
| 6 | 3249 Alpine Road | 15 |
| 7 | San Francisquito Creek Road | 15 |
| 8 | Ladera - Lucero and Mimosa | 13 |
| 9 | Sandstone Street | 13 |
| 10 | 10 Alhambra Court | 12 |
(local time)
SEE WORLD AQI RANKING
US AQI
22
live AQI index
Good
Overview
What is the current air quality near 4139 Alpine Road, Portola Valley?
| Air pollution level | Air quality index | Main pollutant |
|---|---|---|
| Good | 22 US AQI | PM2.5 |
| Pollutants | Concentration | |
|---|---|---|
| PM2.5 | 5.3µg/m³ | |
Health Recommendations
What is the current air quality near 4139 Alpine Road, Portola Valley?
 | Enjoy outdoor activities |
 | Open your windows to bring clean, fresh air indoors GET A MONITOR |
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 | Good 22 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?
- Pescadero 5
- Coalmine View 6
- Thomas Fogarty Winery 6
- Alpine Road 7
- Experimental Facilities Dept Shops EFD 9
- Hayfields Road 9
- Pomponio Court 10
- Alhambra Court 11
- Ash Lane 11
- Georgia Lane 11
- Granada Court 11
- Los Trancos Road 11
- Sausal Drive 11
- Vista Verde Way 11
- 10 Alhambra Court 12
- 9 Valley Oak Street 12
- Alpine Hills 12
- Bay Laurel 12
- Buck Meadow Drive 12
- Loop Road 12
- Millennium farm 12
- Ladera - Lucero and Mimosa 13
- Sandstone Street 13
- 3249 Alpine Road 15
- San Francisquito Creek Road 15
- 14 Arastradero 16
- LSAC Building 950 16
- 4139 Alpine Road 22
- Antonio Court 26
- Lower Sandstone 54
AQI US, Metric