AddAir quality in San Mateo County
Air quality index (AQI⁺) and PM2.5 air pollution in San Mateo County • 15 Followers • 20:00, Jun 04 Local time
29
US AQI⁺Good
Main pollutant:
PM2.5
5.4 µg/m³
11°
11 km/h
96 %
Hourly forecast
San Mateo County air quality index (AQI⁺) forecast
Daily forecast
San Mateo County air quality index (AQI⁺) forecast
| Today | 37 |  | 17° 10° |  17 km/h | 83% |
| Fri | 34 |  90% | 13° 9° | 20 km/h | 93% |
| Sat | 19 | | 16° 10° | 18 km/h | 70% |
Air pollutants
What is the current air quality in San Mateo County?
PM2.5 concentration is currently 1.1 times the World Health Organization annual PM2.5 guideline value.
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 None | 0% |
 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 None | 0% |
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?
- Bear Gulch Road1
- Skyline Boulevard11
- Top of Kings Mountain11
- Kings Mountain North16
- Upland Road17
- Filbert Road18
- Star Hill Road station19
- Ware Road20
- Santa Clara Avenue at Barton Street21
- Rocky Creek Road22
- Kings Mountain North #223
- Menlo Oaks 223
- Menlo Oaks Drive24
- Dirt Alpine26
- Cerrito Avenue27
- Menlo Oaks27
- Palomar Park27
- Stanford Weekend Acres27
- Belle Roche Court28
- Lynton Avenue28
- 265 Old Spanish Trail29
- Alpine Road29
- Experimental Facilities Dept Shops EFD29
- Arlington Way30
- 480 Tunitas Creek Road31
- Portola Hts - 5 Points31
- Alexander Avenue32
- Durham Road32
- Los Trancos Road32
- Old Spanish Trail32
- Sand Hill Road station32
- Skyline - Chapman Rd32
- Skyline Resort32
- 920 Bear Gulch Road33
- Alberta Glen33
- Talbot Avenue - East Sharp Park33
- West Ranch Road34
- Skyline Boulevard MAC38
- San Gregorio39
- Stockbridge near Alameda55
