AddAir quality in San Mateo County
Air quality index (AQI⁺) and PM2.5 air pollution in San Mateo County • 15 Followers • 19:00, May 31 Local time
28
US AQI⁺Good
Main pollutant:
PM2.5
5 µg/m³
16°
5 km/h
69 %
Hourly forecast
San Mateo County air quality index (AQI⁺) forecast
Daily forecast
San Mateo County air quality index (AQI⁺) forecast
| Today | 46 |  | 21° 15° |  9 km/h | 58% |
| Mon | 33 | | 19° 10° | 12 km/h | 73% |
| Tue | 46 | | 20° 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
High
 Tree None | 0% |
 Grass High | 75% |
 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
High
Tree None | 0% |
Grass High | 75% |
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
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?
- Bear Gulch Road2
- Skyline Boulevard10
- Top of Kings Mountain12
- Star Hill Road station16
- Stockbridge near Alameda17
- Upland Road18
- Kings Mountain North #220
- Ware Road21
- Filbert Road23
- Newton Drive23
- Menlo Oaks 225
- Portola Hts - 5 Points25
- Santa Clara Avenue at Barton Street25
- Stanford Weekend Acres25
- 480 Tunitas Creek Road26
- Alpine Road27
- Cerrito Avenue27
- Dirt Alpine27
- Kings Mountain North27
- Menlo Oaks Drive27
- Alexander Avenue28
- Durham Road28
- Lynton Avenue28
- Palomar Park28
- Rocky Creek Road28
- 265 Old Spanish Trail29
- 920 Bear Gulch Road29
- Belle Roche Court29
- Los Trancos Road29
- Talbot Avenue - East Sharp Park29
- Experimental Facilities Dept Shops EFD30
- Sand Hill Road station30
- Skyline Resort30
- Alberta Glen31
- Old Spanish Trail31
- Menlo Oaks32
- West Ranch Road32
- Arlington Way33
- Skyline Boulevard MAC36
- San Gregorio37
- Skyline - Chapman Rd59
