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Air quality in Yosemite Valley

Air quality index (AQI) and PM2.5 air pollution in Yosemite Valley

Last update at 15:00, May 17 (local time)

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#	city	US AQI
1	Thibodaux, Louisiana	115
2	San Bernardino, California	90
3	Yucaipa, California	87
4	La Crescenta-Montrose, California	85
5	Hammond, Indiana	82
6	Redlands, California	78
7	Altadena, California	77
8	Claremont, California	74
9	Fontana, California	74
10	La Canada Flintridge, California	74

15:00, May 17 (local time)

#	station	US AQI
1	Ahwahnee Drive	53
2	Happy Isles	51
3	Yosemite Village - Visitor Center	42

15:00, May 17 (local time)

US AQI

live AQI index
Moderate

Air pollution level	Air quality index	Main pollutant
Moderate	51 US AQI	PM2.5

Pollutants		Concentration
PM2.5		9.3µg/m³
PM10		20µg/m³

PM2.5

x1.9

PM2.5 concentration in Yosemite Valley is currently 1.9 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
Tuesday, May 14	Good 27 AQI US		77° 55.4°	8.9 mp/h
Wednesday, May 15	Good 35 AQI US		77° 55.4°	11.2 mp/h
Thursday, May 16	Good 43 AQI US		77° 55.4°	8.9 mp/h
Today	Moderate 51 AQI US	40%	77° 55.4°	8.9 mp/h
Saturday, May 18	Good 35 AQI US	60%	71.6° 55.4°	6.7 mp/h
Sunday, May 19	Moderate 60 AQI US		71.6° 50°	11.2 mp/h
Monday, May 20	Moderate 55 AQI US	50%	64.4° 46.4°	11.2 mp/h
Tuesday, May 21	Good 19 AQI US		66.2° 42.8°	8.9 mp/h
Wednesday, May 22	Good 19 AQI US		68° 48.2°	8.9 mp/h
Thursday, May 23	Moderate 63 AQI US		62.6° 44.6°	11.2 mp/h
Friday, May 24	Good 39 AQI US		66.2° 42.8°	8.9 mp/h