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Air quality in San Marcos

Air quality index (AQI) and PM2.5 air pollution in San Marcos

Last update at 00:00, Apr 26 (local time)

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AIR QUALITY DATA SOURCE

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US AQI

54*

live AQI index
Moderate

Air pollution level	Air quality index	Main pollutant
Moderate	54* US AQI	PM2.5

Pollutants		Concentration
PM2.5		13.7*µg/m³

PM2.5

x2.7

PM2.5 concentration in San Marcos is currently 2.7 times the WHO annual air quality guideline value

	Sensitive groups should reduce outdoor exercise
	Close your windows to avoid dirty outdoor air GET A MONITOR
	Sensitive groups should wear a mask outdoors GET A MASK
	Sensitive groups should run an air purifier GET AN AIR PURIFIER

Day	Pollution level	Weather	Temperature	Wind
Today	Moderate 54 AQI US		91.4° 71.6°	13.4 mp/h
Saturday, Apr 27	Good 43 AQI US		91.4° 69.8°	13.4 mp/h
Sunday, Apr 28	Good 46 AQI US	60%	89.6° 69.8°	8.9 mp/h
Monday, Apr 29	Good 44 AQI US	100%	91.4° 71.6°	8.9 mp/h
Tuesday, Apr 30	Good 45 AQI US	100%	91.4° 71.6°	8.9 mp/h
Wednesday, May 1	Moderate 55 AQI US	50%	91.4° 71.6°	8.9 mp/h
Thursday, May 2	Moderate 55 AQI US	60%	91.4° 71.6°	8.9 mp/h