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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 |
Weather
What is the current weather near 4139 Alpine Road, Portola Valley?
| Weather | Broken clouds |
| Temperature | 51.8°F |
| Humidity | 75% |
| Wind | 14 mp/h |
| Pressure | 29.8 Hg |
live aqi city ranking
Real-time USA city ranking
| # | city | US AQI |
|---|---|---|
| 1 | Campo, California | 98 |
| 2 | Bass Lake, California | 92 |
| 3 | Palm Desert, California | 86 |
| 4 | Yucaipa, California | 78 |
| 5 | Santa Clarita, California | 76 |
| 6 | La Crescenta-Montrose, California | 75 |
| 7 | Lake Arrowhead, California | 74 |
| 8 | San Fernando, California | 71 |
| 9 | Palmdale, California | 70 |
| 10 | La Canada Flintridge, California | 67 |
(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 | 40 |
| 2 | Antonio Court | 30 |
| 3 | 10 Alhambra Court | 18 |
| 4 | 14 Arastradero | 18 |
| 5 | Granada Court | 18 |
| 6 | Loop Road | 18 |
| 7 | 9 Valley Oak Street | 17 |
| 8 | LSAC Building 950 | 17 |
| 9 | Ladera - Lucero and Mimosa | 17 |
| 10 | San Francisquito Creek Road | 17 |
(local time)
SEE WORLD AQI RANKING
US AQI
14
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 | 14 US AQI | PM2.5 |
| Pollutants | Concentration | |
|---|---|---|
| PM2.5 | 3.4µg/m³ | |
Health Recommendations
What is the current air quality near 4139 Alpine Road, Portola Valley?
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 | 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 |
|---|---|---|---|---|
| Saturday, Apr 20 | Good 15 AQI US | |||
| Sunday, Apr 21 | Good 17 AQI US | |||
| Today | Good 14 AQI US | |||
| Tuesday, Apr 23 | Good 19 AQI US |  | 60.8° 46.4° |  8.9 mp/h |
| Wednesday, Apr 24 | Good 19 AQI US | | 62.6° 48.2° | 8.9 mp/h |
| Thursday, Apr 25 | Good 19 AQI US |  20% | 59° 46.4° | 8.9 mp/h |
| Friday, Apr 26 | Good 11 AQI US | 40% | 57.2° 46.4° | 17.9 mp/h |
| Saturday, Apr 27 | Good 9 AQI US |  | 60.8° 42.8° | 8.9 mp/h |
| Sunday, Apr 28 | Good 12 AQI US | | 62.6° 44.6° | 8.9 mp/h |
| Monday, Apr 29 | Good 18 AQI US | | 60.8° 44.6° | 11.2 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?
- Alpine Hills 1
- Ash Lane 1
- Coalmine View 1
- Thomas Fogarty Winery 1
- Georgia Lane 5
- Bay Laurel 12
- Experimental Facilities Dept Shops EFD 13
- Hayfields Road 13
- Pescadero 13
- Pomponio Court 13
- 4139 Alpine Road 14
- 3249 Alpine Road 15
- Alhambra Court 15
- Sausal Drive 15
- Stonegate Road 15
- Vista Verde Way 15
- Buck Meadow Drive 16
- Los Trancos Road 16
- Millennium farm 16
- Sandstone Street 16
- 9 Valley Oak Street 17
- LSAC Building 950 17
- Ladera - Lucero and Mimosa 17
- San Francisquito Creek Road 17
- 10 Alhambra Court 18
- 14 Arastradero 18
- Granada Court 18
- Loop Road 18
- Antonio Court 30
- Lower Sandstone 40
AQI US, Metric