AddAir quality in San Mateo County
Air quality index (AQI⁺) and PM2.5 air pollution in San Mateo County • 15 Followers • 06:00, Jun 04 Local time
10
US AQI⁺Good
Main pollutant:
PM2.5
1.8 µg/m³
9°
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 | 17 |  90% | 16° 9° |  13 km/h | 84% |
| Fri | 40 |  | 17° 9° | 16 km/h | 81% |
| Sat | 30 | | 16° 10° | 19 km/h | 67% |
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?
- Portola Hts - 5 Points2
- Skyline - Chapman Rd3
- Experimental Facilities Dept Shops EFD4
- Alpine Road6
- Arlington Way6
- Newton Drive7
- Palomar Park7
- Ralston Road7
- Santa Clara Avenue at Barton Street7
- Skyline Boulevard MAC7
- Stanford Weekend Acres7
- Star Hill Road station7
- Kings Mountain North8
- Los Trancos Road9
- Old Spanish Trail9
- 920 Bear Gulch Road10
- Cerrito Avenue10
- Durham Road10
- Menlo Oaks 210
- 265 Old Spanish Trail11
- Skyline Resort11
- West Ranch Road11
- Dirt Alpine12
- Rocky Creek Road12
- 480 Tunitas Creek Road14
- Sand Hill Road station14
- Lynton Avenue17
- Menlo Oaks17
- Alberta Glen18
- San Gregorio24
- Talbot Avenue - East Sharp Park24
- Stockbridge near Alameda28
