AddAir quality in San Mateo County
Air quality index (AQI⁺) and PM2.5 air pollution in San Mateo County • 15 Followers • 13:00, Jun 04 Local time
28
US AQI⁺Good
Main pollutant:
PM2.5
5.1 µg/m³
17°
6 km/h
70 %
Hourly forecast
San Mateo County air quality index (AQI⁺) forecast
Daily forecast
San Mateo County air quality index (AQI⁺) forecast
| Today | 28 |  90% | 17° 9° |  14 km/h | 88% |
| Fri | 34 |  | 17° 10° | 17 km/h | 83% |
| Sat | 32 | 90% | 13° 9° | 20 km/h | 93% |
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
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?
- Top of Kings Mountain3
- Cerrito Avenue9
- Experimental Facilities Dept Shops EFD11
- Ralston Road13
- Star Hill Road station17
- Old Spanish Trail18
- Santa Clara Avenue at Barton Street19
- Skyline - Chapman Rd19
- Dirt Alpine20
- Sand Hill Road station21
- 920 Bear Gulch Road23
- Menlo Oaks 223
- Portola Hts - 5 Points23
- Stanford Weekend Acres23
- 265 Old Spanish Trail24
- Alpine Road25
- Los Trancos Road25
- Filbert Road26
- Skyline Resort26
- Alexander Avenue27
- Rocky Creek Road27
- 480 Tunitas Creek Road29
- Menlo Oaks Drive29
- Talbot Avenue - East Sharp Park29
- Lynton Avenue31
- Durham Road32
- Palomar Park32
- Skyline Boulevard MAC32
- West Ranch Road32
- Arlington Way33
- Kings Mountain North #233
- Menlo Oaks33
- Ware Road33
- Alberta Glen36
- San Gregorio37
- Kings Mountain North38
- Stockbridge near Alameda56
