AddAir quality in San Marcos
Air quality index (AQI⁺) and PM2.5 air pollution in San Marcos • 11 Followers • 15:00, Jul 08 Local time
50*
US AQI⁺Good
Main pollutant:
PM2.5
9.1 µg/m³
26°
6 km/h
94 %
Hourly forecast
San Marcos air quality index (AQI⁺) forecast
Daily forecast
|
San Marcos air quality index (AQI⁺) forecast
| Today | 50 |  90% | 30° 24° |  7 km/h | 93% |
| Wed | 50 | | 31° 24° | 7 km/h | 91% |
| Thu | 54 | | 32° 23° | 8 km/h | 91% |
Air pollutants
What is the current air quality in San Marcos?
PM2.5 concentration is currently 1.8 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 |
Health recommendations
Enjoy outdoor activities |
Open your windows to bring clean, fresh air indoors Get a monitor |
Most polluted locations near San Marcos
Worldwide AQI⁺ ranking
Historic air quality near San Marcos
History
Historic air quality graph for San Marcos
50 AQI⁺ US
Good
15:00–16:00 Jul 08 Local time
AQI⁺ US
Historic air quality near San Marcos
History
Historic air quality graph for San Marcos
50 AQI⁺ US
Good
15:00–16:00 Jul 08 Local time
AQI⁺ US
Most polluted locations near San Marcos
Worldwide AQI⁺ ranking
Be the first to measure and contribute air quality data to your community
Where is the cleanest air quality in San Marcos?
No locations are available.
