AddAir quality in San Mateo County
Air quality index (AQI⁺) and PM2.5 air pollution in San Mateo County • 15 Followers • 07:00, Jun 01 Local time
23
US AQI⁺Good
Main pollutant:
PM2.5
4.2 µg/m³
16°
2 km/h
38 %
Hourly forecast
San Mateo County air quality index (AQI⁺) forecast
Daily forecast
San Mateo County air quality index (AQI⁺) forecast
| Today | 29 | | 21° 15° |  9 km/h | 58% |
| Tue | 33 | | 19° 11° | 12 km/h | 72% |
| Wed | 46 | | 19° 11° | 17 km/h | 68% |
Air pollutants
What is the current air quality in San Mateo County?
PM2.5 concentration currently meets the WHO annual PM2.5 guideline.
Health recommendations
 Enjoy outdoor activities |
 Open your windows to bring clean, fresh air indoors Get a monitor |
Protect yourself from air pollution in San Mateo County
Monitor the air you breathe
Get accurate AirVisual air quality readings and real-time insights for cleaner air. Monitors that reveal pollution sources, highlight when air purifier use is needed.
Medical grade air purifiers
Trusted worldwide, the HealthPro Series uses HyperHEPA technology. Filters ultrafine particles other air purifiers miss, delivering medical-grade protection.
Powerful, stylish air purifiers
Compact and powerful, the Atem Series combines Swiss engineering with high-performance air purification, filtering ultrafine particles with HyperHEPA technology.
Pollen
What is the pollen count in San Mateo County today?
Index
Moderate
 Tree Low | 25% |
 Grass Low | 25% |
 Weed Moderate | 50% |
Source:
wetter.comHealth recommendations
Enjoy outdoor activities |
Open your windows to bring clean, fresh air indoors Get a monitor |
Pollen
What is the pollen count in San Mateo County today?
Index
Moderate
Tree Low | 25% |
Grass Low | 25% |
Weed Moderate | 50% |
Source:
wetter.comProtect yourself from air pollution in San Mateo County
Monitor the air you breathe
Get accurate AirVisual air quality readings and real-time insights for cleaner air. Monitors that reveal pollution sources, highlight when air purifier use is needed.
Medical grade air purifiers
Trusted worldwide, the HealthPro Series uses HyperHEPA technology. Filters ultrafine particles other air purifiers miss, delivering medical-grade protection.
Powerful, stylish air purifiers
Compact and powerful, the Atem Series combines Swiss engineering with high-performance air purification, filtering ultrafine particles with HyperHEPA technology.
Most polluted locations near San Mateo County
Worldwide AQI⁺ ranking
Station ranking
Real-time AQI⁺ station ranking for stations in San Mateo County
Historic air quality near San Mateo County
History
Historic air quality graph for San Mateo County
Historic air quality near San Mateo County
History
Historic air quality graph for San Mateo County
Most polluted locations near San Mateo County
Worldwide AQI⁺ rankingStation ranking
Real-time AQI⁺ station ranking for stations in San Mateo County
Measure your own air quality
Get a monitor and contribute air quality data in your city.
Where is the cleanest air quality in San Mateo County?
- Alexander Avenue1
- Experimental Facilities Dept Shops EFD1
- Bear Gulch Road4
- Star Hill Road station7
- Menlo Oaks8
- Santa Clara Avenue at Barton Street8
- 480 Tunitas Creek Road9
- Top of Kings Mountain9
- Menlo Oaks 210
- Sand Hill Road station10
- Pescadero Station11
- San Gregorio13
- Stanford Weekend Acres13
- Cerrito Avenue14
- Skyline Boulevard17
- Alpine Road19
- Los Trancos Road20
- Filbert Road21
- 265 Old Spanish Trail23
- Durham Road23
- Kings Mountain North #223
- Skyline - Chapman Rd23
- 920 Bear Gulch Road24
- Alberta Glen24
- Old Spanish Trail24
- Palomar Park24
- Skyline Boulevard MAC24
- Dirt Alpine25
- Portola Hts - 5 Points25
- Rocky Creek Road25
- Ware Road25
- Kings Mountain North26
- West Ranch Road26
- Lynton Avenue27
- Skyline Resort27
- Stockbridge near Alameda28
- Talbot Avenue - East Sharp Park39
