AddAir quality in San Mateo County
Air quality index (AQI⁺) and PM2.5 air pollution in San Mateo County • 24 Followers • 16:00, Nov 10 Local time
19
US AQI⁺Good
Main pollutant:
PM2.5
3.5 µg/m³
21°
6 km/h
42 %
Hourly forecast
San Mateo County air quality index (AQI⁺) forecast
Daily forecast
San Mateo County air quality index (AQI⁺) forecast
| Today | 39 |  | 23° 13° |  9 km/h | 55% |
| Wed | 41 |  | 20° 14° | 10 km/h | 69% |
| Thu | 32 | | 16° 12° | 36 km/h | 84% |
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 None | 0% |
 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 None | 0% |
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?
- Kings Mountain North1
- 480 Tunitas Creek Road2
- Belle Roche Court2
- Santa Clara Avenue at Barton Street2
- Burlingame Hills3
- Dirt Alpine3
- Newton Drive3
- Palomar Park3
- Pescadero Station3
- Rocky Creek Road3
- Top of Kings Mountain3
- Ralston Road4
- 265 Old Spanish Trail5
- Filbert Road5
- Kings Mountain North #26
- Old Spanish Trail6
- Ware Road6
- 920 Bear Gulch Road7
- Alexander Avenue7
- Los Trancos Road7
- Skyline - Chapman Rd7
- Cerrito Avenue8
- Menlo Oaks8
- Alpine Road9
- Durham Road9
- Lynton Avenue9
- Stanford Weekend Acres9
- West Ranch Road9
- Skyline Resort10
- Arlington Way11
- Menlo Oaks 212
- Skyline Boulevard MAC13
- Talbot Avenue - East Sharp Park15
- Menlo Oaks Drive24
- Stockbridge near Alameda27
