AddAir quality in San Mateo County
Air quality index (AQI⁺) and PM2.5 air pollution in San Mateo County • 14 Followers • 23:00, May 13 Local time
14
US AQI⁺Good
Main pollutant:
PM2.5
2.7 µg/m³
11°
5 km/h
98 %
Hourly forecast
San Mateo County air quality index (AQI⁺) forecast
Daily forecast
San Mateo County air quality index (AQI⁺) forecast
| Today | 20 |  | 16° 9° |  16 km/h | 89% |
| Fri | 25 |  90% | 14° 10° | 17 km/h | 84% |
| Sat | 43 |  | 17° 9° | 23 km/h | 66% |
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 Low | 25% |
 Grass High | 75% |
 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
High
Tree Low | 25% |
Grass High | 75% |
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
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?
- Filbert Road1
- Star Hill Road station1
- Ware Road1
- Experimental Facilities Dept Shops EFD2
- Alexander Avenue3
- Rocky Creek Road3
- Kings Mountain North7
- Dirt Alpine8
- Stanford Weekend Acres9
- Kings Mountain North #210
- Newton Drive10
- Alpine Road11
- Ralston Road11
- Santa Clara Avenue at Barton Street11
- 265 Old Spanish Trail12
- Old Spanish Trail12
- Palomar Park12
- Portola Hts - 5 Points12
- 920 Bear Gulch Road13
- Cerrito Avenue13
- Los Trancos Road13
- Menlo Oaks13
- Skyline - Chapman Rd13
- San Francisquito Creek Road14
- San Gregorio14
- Skyline Boulevard MAC14
- West Ranch Road14
- Durham Road15
- Menlo Oaks 215
- Menlo Oaks Drive15
- Skyline Resort15
- Arlington Way16
- Burlingame Hills16
- Lynton Avenue18
- 480 Tunitas Creek Road19
- Alberta Glen20
- Talbot Avenue - East Sharp Park22
- Stockbridge near Alameda31
