AddAir quality in San Marcos
Air quality index (AQI⁺) and PM2.5 air pollution in San Marcos • 4 Followers • 04:00, Oct 28 Local time
46*
US AQI⁺Good
Main pollutant:
PM2.5
8.2 µg/m³
17°
5 km/h
79 %
Hourly forecast
San Marcos air quality index (AQI⁺) forecast
Daily forecast
|
San Marcos air quality index (AQI⁺) forecast
| Today | 50 |  | 23° 17° |  12 km/h | 68% |
| Thu | 58 |  90% | 22° 15° | 18 km/h | 76% |
| Fri | 57 | | 24° 14° | 19 km/h | 67% |
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 |
Protect yourself from air pollution in San Marcos
Protect yourself from air pollution in San Marcos
Air Purifiers
Face Masks
Air Quality Monitors
Health recommendations
Enjoy outdoor activities |
Open your windows to bring clean, fresh air indoors Get a monitor |
Protect yourself from air pollution in San Marcos
Protect yourself from air pollution in San Marcos
Air Purifiers
Face Masks
Air Quality Monitors
Most polluted locations near San Marcos
Worldwide AQI⁺ ranking
Historic air quality near San Marcos
History
Historic air quality graph for San Marcos
46 AQI⁺ US
Good
04:00–05:00 Oct 28 Local time
AQI⁺ US
Historic air quality near San Marcos
History
Historic air quality graph for San Marcos
46 AQI⁺ US
Good
04:00–05:00 Oct 28 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
Learn more about global air quality
Where is the cleanest air quality in San Marcos?
No locations are available.
