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Air quality near Old Spanish Trail, Portola Valley
Air quality index (AQI) and PM2.5 air pollution near Old Spanish Trail, Portola Valley
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Air Quality Map
Real-time Old Spanish Trail air pollution map
AIR QUALITY DATA CONTRIBUTORS
Find out more about contributors and data sourcesPollen
What is the pollen count in Old Spanish Trail today?
 | Index | Very high | |
 | Tree pollen | Very high | |
 | Grass pollen | Low | |
 | Weed pollen | None |
Source: tomorrow.io
Weather
What is the current weather near Old Spanish Trail, Portola Valley?
| Weather | Broken clouds |
| Temperature | 62.6°F |
| Humidity | 62% |
| Wind | 6 mp/h |
| Pressure | 30 Hg |
live aqi city ranking
Real-time USA city ranking
| # | city | US AQI |
|---|---|---|
| 1 | San Bernardino, California | 79 |
| 2 | San Antonio, Texas | 77 |
| 3 | Yucaipa, California | 71 |
| 4 | San Fernando, California | 70 |
| 5 | Redlands, California | 69 |
| 6 | Glendale, California | 68 |
| 7 | Nipomo, California | 67 |
| 8 | Pasadena, California | 64 |
| 9 | San Gabriel, California | 64 |
| 10 | San Jacinto, California | 63 |
(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 | 64 |
| 2 | Antonio Court | 25 |
| 3 | LSAC Building 950 | 20 |
| 4 | 14 Arastradero | 19 |
| 5 | 4139 Alpine Road | 19 |
| 6 | Ladera - Lucero and Mimosa | 18 |
| 7 | San Francisquito Creek Road | 18 |
| 8 | 3249 Alpine Road | 17 |
| 9 | 9 Valley Oak Street | 17 |
| 10 | Alhambra Court | 17 |
(local time)
SEE WORLD AQI RANKING
US AQI
55
live AQI index
Moderate
Overview
What is the current air quality near Old Spanish Trail, Portola Valley?
| Air pollution level | Air quality index | Main pollutant |
|---|---|---|
| Moderate | 55 US AQI | PM2.5 |
| Pollutants | Concentration | |
|---|---|---|
| PM2.5 | 14µg/m³ | |
Health Recommendations
What is the current air quality near Old Spanish Trail, 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
Old Spanish Trail, Portola Valley air quality index (AQI) forecast
| Day | Pollution level | Weather | Temperature | Wind |
|---|---|---|---|---|
| Wednesday, Mar 20 | Good 10 AQI US  | | 62.6° 44.6° |  4.5 mp/h |
| Thursday, Mar 21 | Good 16 AQI US |  90% | 60.8° 46.4° | 13.4 mp/h |
| Friday, Mar 22 | Good 13 AQI US | 100% | 50° 42.8° | 13.4 mp/h |
| Saturday, Mar 23 | Good 10 AQI US | 100% | 51.8° 42.8° | 11.2 mp/h |
| Sunday, Mar 24 | Good 13 AQI US | | 51.8° 41° | 8.9 mp/h |
| Monday, Mar 25 | Good 7 AQI US | 20% | 57.2° 41° | 6.7 mp/h |
| Tuesday, Mar 26 | Good 8 AQI US | 100% | 48.2° 41° | 15.7 mp/h |
| Wednesday, Mar 27 | Good 4 AQI US | 20% | 53.6° 41° | 6.7 mp/h |
Interested in hourly forecast? Get the app
News
The latest air quality news and resources.
Old Spanish Trail air quality data attribution
Contributor
Anonymous Contributor
Data source
Data validated and calibrated by IQAirWhere is the cleanest air quality in Portola Valley?
No locations are available.
AQI US, Metric