AddAir quality in San Mateo County
Air quality index (AQI⁺) and PM2.5 air pollution in San Mateo County • 15 Followers • 16:00, Jun 14 Local time
23
US AQI⁺Good
Main pollutant:
PM2.5
4.2 µg/m³
19°
9 km/h
70 %
Hourly forecast
San Mateo County air quality index (AQI⁺) forecast
Daily forecast
San Mateo County air quality index (AQI⁺) forecast
| Today | 33 | | 20° 14° |  12 km/h | 70% |
| Sun | 37 | | 23° 15° | 5 km/h | 60% |
| Mon | 32 | | 24° 14° | 13 km/h | 61% |
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 None | 0% |
 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 None | 0% |
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?
- Star Hill Road station1
- Upland Road2
- Skyline Boulevard4
- Top of Kings Mountain10
- Pescadero Station16
- Filbert Road17
- Menlo Oaks18
- Newton Drive18
- Santa Clara Avenue at Barton Street19
- Talbot Avenue - East Sharp Park19
- Kings Mountain North #221
- Menlo Oaks 221
- Ware Road21
- 480 Tunitas Creek Road22
- Alpine Road22
- Ralston Road22
- Experimental Facilities Dept Shops EFD23
- Rocky Creek Road23
- San Gregorio23
- Stanford Weekend Acres23
- Alexander Avenue24
- Durham Road24
- Portola Hts - 5 Points24
- Skyline Boulevard MAC24
- Lynton Avenue25
- Menlo Oaks Drive25
- Skyline Resort26
- West Ranch Road26
- Kings Mountain North27
- Palomar Park27
- Skyline - Chapman Rd27
- Dirt Alpine28
- Alberta Glen29
- Los Trancos Road30
- 265 Old Spanish Trail32
- 920 Bear Gulch Road32
- Arlington Way32
- Old Spanish Trail32
- Sand Hill Road station34
