Big Meadows

Data time: 10/21/2026 8:00 AM 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	36	PPB
PM10	294	UG/M3
PM2.5	2.2	UG/M3

Historical Data Concentration

Hour	AQI	Class	Program	Responsible Pollutant	Activity Caution	Risk Groups
08:00	33	Good	Ozone	Ozone	None	Children and people with asthma are the groups most at risk.
08:00	170	Unhealthy	PM10	PM10	Increased aggravation of heart or lung disease and premature mortality in people with cardiopulmonary disease and older adults; increased respiratory effects in general population	People with respiratory disease are the group most at risk.
08:00	12	Good	PM2.5	PM 2.5	None	People with respiratory or heart disease, the elderly and children are the groups most at risk.
07:00	34	Good	Ozone	Ozone	None	Children and people with asthma are the groups most at risk.
07:00	170	Unhealthy	PM10	PM10	Increased aggravation of heart or lung disease and premature mortality in people with cardiopulmonary disease and older adults; increased respiratory effects in general population	People with respiratory disease are the group most at risk.
07:00	12	Good	PM2.5	PM 2.5	None	People with respiratory or heart disease, the elderly and children are the groups most at risk.
06:00	34	Good	Ozone	Ozone	None	Children and people with asthma are the groups most at risk.
06:00	170	Unhealthy	PM10	PM10	Increased aggravation of heart or lung disease and premature mortality in people with cardiopulmonary disease and older adults; increased respiratory effects in general population	People with respiratory disease are the group most at risk.
06:00	11	Good	PM2.5	PM 2.5	None	People with respiratory or heart disease, the elderly and children are the groups most at risk.
05:00	35	Good	Ozone	Ozone	None	Children and people with asthma are the groups most at risk.
05:00	170	Unhealthy	PM10	PM10	Increased aggravation of heart or lung disease and premature mortality in people with cardiopulmonary disease and older adults; increased respiratory effects in general population	People with respiratory disease are the group most at risk.
05:00	11	Good	PM2.5	PM 2.5	None	People with respiratory or heart disease, the elderly and children are the groups most at risk.
04:00	36	Good	Ozone	Ozone	None	Children and people with asthma are the groups most at risk.
04:00	170	Unhealthy	PM10	PM10	Increased aggravation of heart or lung disease and premature mortality in people with cardiopulmonary disease and older adults; increased respiratory effects in general population	People with respiratory disease are the group most at risk.
04:00	13	Good	PM2.5	PM 2.5	None	People with respiratory or heart disease, the elderly and children are the groups most at risk.
03:00	33	Good	Ozone	Ozone	None	Children and people with asthma are the groups most at risk.
03:00	170	Unhealthy	PM10	PM10	Increased aggravation of heart or lung disease and premature mortality in people with cardiopulmonary disease and older adults; increased respiratory effects in general population	People with respiratory disease are the group most at risk.