AddAir quality in San Marcos
Air quality index (AQI⁺) and PM2.5 air pollution in San Marcos • 921 Followers • 18:00, Sep 30 Local time
44
US AQI⁺Good
Main pollutant:
PM2.5
8.1 µg/m³
31°
19 km/h
66 %
Hourly forecast
San Marcos air quality index (AQI⁺) forecast
Daily forecast
San Marcos air quality index (AQI⁺) forecast
| Today | 52 |  | 34° 26° |  25 km/h | 74% |
| Wed | 54 |  80% | 27° 21° | 16 km/h | 92% |
| Thu | 32 | 80% | 28° 22° | 16 km/h | 87% |
Air pollutants
What is the current air quality in San Marcos?
PM2.5 concentration is currently 1.6 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 |
Pollen
What is the pollen count in San Marcos today?
Index
Low
 Tree None | 0% |
 Grass None | 0% |
 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 Marcos today?
Index
Low
Tree None | 0% |
Grass None | 0% |
Weed Low | 25% |
Source:
wetter.comMost polluted locations near San Marcos
Worldwide AQI⁺ ranking
Station ranking
Real-time AQI⁺ station ranking for stations in San Marcos
City ranking
Real-time USA AQI⁺ city ranking
Historic air quality near San Marcos
History
Historic air quality graph for San Marcos
Historic air quality near San Marcos
History
Historic air quality graph for San Marcos
Most polluted locations near San Marcos
Worldwide AQI⁺ rankingStation ranking
Real-time AQI⁺ station ranking for stations in San Marcos
City ranking
Real-time USA AQI⁺ city ranking
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