AddAir quality in San Mateo County
Air quality index (AQI⁺) and PM2.5 air pollution in San Mateo County • 15 Followers • 04:00, May 30 Local time
6
US AQI⁺Good
Main pollutant:
PM2.5
1 µg/m³
10°
10 km/h
99 %
Hourly forecast
San Mateo County air quality index (AQI⁺) forecast
Daily forecast
San Mateo County air quality index (AQI⁺) forecast
| Today | 20 |  90% | 12° 9° |  14 km/h | 97% |
| Sun | 30 |  | 18° 9° | 9 km/h | 70% |
| Mon | 39 | | 19° 9° | 12 km/h | 74% |
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 Low | 25% |
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 Low | 25% |
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?
- Sand Hill Road station0
- 265 Old Spanish Trail1
- Dirt Alpine1
- Portola Hts - 5 Points1
- Skyline - Chapman Rd1
- Stanford Weekend Acres2
- 920 Bear Gulch Road3
- Arlington Way3
- Cerrito Avenue3
- West Ranch Road3
- 480 Tunitas Creek Road4
- Durham Road4
- Kings Mountain North4
- Old Spanish Trail4
- Los Trancos Road6
- Ralston Road6
- San Gregorio7
- Santa Clara Avenue at Barton Street7
- Newton Drive8
- Skyline Boulevard MAC8
- Lynton Avenue10
- Menlo Oaks10
- Skyline Resort12
- Stockbridge near Alameda18
- Alberta Glen23
- Talbot Avenue - East Sharp Park24
