AddAir quality in San Mateo County
Air quality index (AQI⁺) and PM2.5 air pollution in San Mateo County • 15 Followers • 09:00, Jun 03 Local time
21
US AQI⁺Good
Main pollutant:
PM2.5
3.7 µg/m³
11°
7 km/h
98 %
Hourly forecast
San Mateo County air quality index (AQI⁺) forecast
Daily forecast
San Mateo County air quality index (AQI⁺) forecast
| Today | 28 |  90% | 16° 9° |  21 km/h | 80% |
| Thu | 33 | | 16° 10° | 10 km/h | 76% |
| Fri | 43 |  | 21° 9° | 14 km/h | 65% |
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
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?
- Top of Kings Mountain0
- Star Hill Road station7
- Kings Mountain North #28
- Portola Hts - 5 Points8
- Alexander Avenue10
- Newton Drive11
- 480 Tunitas Creek Road12
- Skyline - Chapman Rd12
- Skyline Boulevard MAC13
- Alpine Road14
- Santa Clara Avenue at Barton Street16
- Ware Road16
- Durham Road17
- Filbert Road17
- Experimental Facilities Dept Shops EFD19
- Talbot Avenue - East Sharp Park19
- West Ranch Road19
- 265 Old Spanish Trail21
- Dirt Alpine21
- Kings Mountain North21
- Lynton Avenue21
- 920 Bear Gulch Road22
- Old Spanish Trail22
- San Gregorio23
- Alberta Glen24
- Skyline Resort24
- Los Trancos Road26
- Rocky Creek Road27
- Arlington Way30
- Stanford Weekend Acres31
- Sand Hill Road station32
- Palomar Park36
- Stockbridge near Alameda56
