city

Air quality in San Marcos

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

Last update at 01:00, Apr 28 (local time)

211 people follow this city

AIR QUALITY DATA CONTRIBUTORS

1 Station operated by

Texas Commission on Environmental Quality (TCEQ)

See all

Join the movement!

Get a monitor and contributor to air quality data in your city.

#	city	US AQI
1	Yosemite Np Turtleback Dome, California	159
2	Boerne, Texas	99
3	San Antonio, Texas	92
4	New Braunfels, Texas	70
5	Fort Worth, Texas	68
6	Georgetown, Texas	68
7	Leander, Texas	67
8	Austin, Texas	63
9	Round Rock, Texas	63
10	Hampton, Virginia	62

01:00, Apr 28 (local time)

#	station	US AQI
1	CAPCOG San Marcos Staples Road	66

01:00, Apr 28 (local time)

US AQI

live AQI index
Moderate

Air pollution level	Air quality index	Main pollutant
Moderate	66 US AQI	PM2.5

Pollutants		Concentration
PM2.5		19.4µg/m³

PM2.5

x3.9

PM2.5 concentration in San Marcos is currently 3.9 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
Thursday, Apr 25	Moderate 55 AQI US		82.4° 69.8°	22.4 mp/h
Friday, Apr 26	Moderate 66 AQI US		82.4° 71.6°	22.4 mp/h
Saturday, Apr 27	Moderate 70 AQI US		75.2° 68°	22.4 mp/h
Today	Moderate 66 AQI US	90%	75.2° 68°	22.4 mp/h
Monday, Apr 29	Good 45 AQI US		86° 68°	11.2 mp/h
Tuesday, Apr 30	Good 48 AQI US	90%	86° 68°	11.2 mp/h
Wednesday, May 1	Good 44 AQI US	30%	82.4° 69.8°	15.7 mp/h
Thursday, May 2	Moderate 65 AQI US	60%	86° 73.4°	15.7 mp/h
Friday, May 3	Moderate 70 AQI US	40%	78.8° 69.8°	13.4 mp/h
Saturday, May 4	Moderate 71 AQI US	90%	75.2° 62.6°	11.2 mp/h