AddAir quality in San Mateo County
Air quality index (AQI⁺) and PM2.5 air pollution in San Mateo County • 15 Followers • 13:00, Jun 03 Local time
23
US AQI⁺Good
Main pollutant:
PM2.5
4.2 µg/m³
15°
12 km/h
69 %
Hourly forecast
San Mateo County air quality index (AQI⁺) forecast
Daily forecast
San Mateo County air quality index (AQI⁺) forecast
| Today | 27 | 90% | 16° 9° |  21 km/h | 84% |
| Thu | 30 |  | 17° 11° | 9 km/h | 74% |
| Fri | 48 |  | 19° 9° | 13 km/h | 74% |
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 Moderate | 50% |
 Weed None | 0% |
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 Moderate | 50% |
Weed None | 0% |
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
City ranking
Real-time USA AQI⁺ city ranking
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
City ranking
Real-time USA AQI⁺ city ranking
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?
- Upland Road5
- Star Hill Road station7
- Bear Gulch Road8
- Skyline Boulevard8
- Top of Kings Mountain10
- Santa Clara Avenue at Barton Street18
- Kings Mountain North19
- Kings Mountain North #219
- Newton Drive19
- Alpine Road20
- 480 Tunitas Creek Road21
- Filbert Road21
- Talbot Avenue - East Sharp Park21
- Menlo Oaks 222
- Ralston Road22
- San Gregorio22
- Pescadero Station23
- Skyline - Chapman Rd23
- Stanford Weekend Acres23
- Ware Road23
- West Ranch Road23
- Durham Road24
- Portola Hts - 5 Points24
- Skyline Boulevard MAC24
- Lynton Avenue25
- Experimental Facilities Dept Shops EFD26
- Skyline Resort26
- 920 Bear Gulch Road27
- Alberta Glen27
- Alexander Avenue27
- 265 Old Spanish Trail28
- Arlington Way28
- Dirt Alpine28
- Menlo Oaks Drive28
- Old Spanish Trail28
- Rocky Creek Road30
- Los Trancos Road31
- Menlo Oaks32
- Sand Hill Road station32
- Palomar Park35
- Stockbridge near Alameda44
