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Air quality in San Marcos

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

Last update at 06:00, Apr 18 (local time)

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AIR QUALITY DATA CONTRIBUTORS

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Texas Commission on Environmental Quality (TCEQ)

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06:00, Apr 18 (local time)

#	station	US AQI
1	CAPCOG San Marcos Staples Road	46

06:00, Apr 18 (local time)

US AQI

live AQI index
Good

Air pollution level	Air quality index	Main pollutant
Good	46 US AQI	PM2.5

Pollutants		Concentration
PM2.5		11.2µg/m³
O3		40µg/m³

PM2.5

x2.2

PM2.5 concentration in San Marcos is currently 2.2 times the WHO annual air quality guideline value

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Day	Pollution level	Weather	Temperature	Wind
Monday, Apr 15	Good 50 AQI US		77° 68°	15.7 mp/h
Tuesday, Apr 16	Moderate 53 AQI US		80.6° 69.8°	13.4 mp/h
Wednesday, Apr 17	Good 44 AQI US		91.4° 69.8°	15.7 mp/h
Today	Good 46 AQI US	90%	91.4° 69.8°	15.7 mp/h
Friday, Apr 19	Good 43 AQI US	90%	77° 62.6°	13.4 mp/h
Saturday, Apr 20	Good 49 AQI US	80%	75.2° 64.4°	13.4 mp/h
Sunday, Apr 21	Good 41 AQI US	90%	68° 57.2°	15.7 mp/h
Monday, Apr 22	Good 39 AQI US		73.4° 55.4°	8.9 mp/h
Tuesday, Apr 23	Good 38 AQI US	40%	78.8° 59°	11.2 mp/h
Wednesday, Apr 24	Moderate 74 AQI US	40%	80.6° 66.2°	8.9 mp/h