Air Quality 
Air Monitors
Air Purifiers
For Business
News
Support
Pollen count and allergy info for Portola Valley
Portola Valley pollen and allergy report
Today's Pollen Count in Lower Sandstone
Pollen types
 | Index | N/A |
 | Tree pollen | N/A |
 | Grass pollen | N/A |
 | Weed pollen | N/A |
Air quality
Air quality of Lower Sandstone today
| AQI US AQI | Moderate | |
| PM2.5 µg/m³ | Moderate |
3D animated air pollution map
Allergy forecast
Lower Sandstone pollen count forecast
| Day | Index | Tree | Grass | Weed | Wind | Weather | Temperature |
|---|---|---|---|---|---|---|---|
| Today | High | High | Low | None |  6.7 mp/h |  | 68° 48.2° |
| Monday, May 13 | Low | Low | Low | None | 6.7 mp/h | | 68° 46.4° |
| Tuesday, May 14 | Low | Low | Low | None | 4.5 mp/h | | 69.8° 48.2° |
AQI US, Metric