Big Meadows

Data time: 7/21/2026 6:00 PM ET

Monitoring Site

Location
Address:	Big Meadows, Shenandoah National Park
Latitude:	38.5228
Longitude:	-78.43487
Region:	Northern

Air Quality Information
Pollutant	Concentration	Units of Measure
Ozone	35	PPB
PM10	16	UG/M3
PM2.5	4.1	UG/M3

Historical Data Concentration

Hour	AQI	Class	Program	Responsible Pollutant	Activity Caution	Risk Groups
18:00	32	Good	Ozone	Ozone	None	Children and people with asthma are the groups most at risk.
18:00	15	Good	PM10	PM10	None	People with respiratory disease are the group most at risk.
18:00	23	Good	PM2.5	PM 2.5	None	People with respiratory or heart disease, the elderly and children are the groups most at risk.
17:00	32	Good	Ozone	Ozone	None	Children and people with asthma are the groups most at risk.
17:00	16	Good	PM10	PM10	None	People with respiratory disease are the group most at risk.
17:00	24	Good	PM2.5	PM 2.5	None	People with respiratory or heart disease, the elderly and children are the groups most at risk.
16:00	32	Good	Ozone	Ozone	None	Children and people with asthma are the groups most at risk.
16:00	17	Good	PM10	PM10	None	People with respiratory disease are the group most at risk.
16:00	25	Good	PM2.5	PM 2.5	None	People with respiratory or heart disease, the elderly and children are the groups most at risk.
15:00	31	Good	Ozone	Ozone	None	Children and people with asthma are the groups most at risk.
15:00	18	Good	PM10	PM10	None	People with respiratory disease are the group most at risk.
15:00	32	Good	PM2.5	PM 2.5	None	People with respiratory or heart disease, the elderly and children are the groups most at risk.
14:00	19	Good	PM10	PM10	None	People with respiratory disease are the group most at risk.
14:00	35	Good	PM2.5	PM 2.5	None	People with respiratory or heart disease, the elderly and children are the groups most at risk.
13:00	19	Good	PM10	PM10	None	People with respiratory disease are the group most at risk.