Rockingham Co.

Data time: 4/15/2026 1:00 PM ET

Location
Address:	Harrisonburg VDOT
Latitude:	38.47753
Longitude:	-78.80952
Region:	Valley

Air Quality Information
Pollutant	Concentration	Units of Measure
SO2	0	PPB
NO2	1	PPB
Ozone	50	PPB
PM10	28	UG/M3
PM2.5	7.3	UG/M3

Historical Data Concentration

Hour	AQI	Class	Program	Responsible Pollutant	Activity Caution	Risk Groups
13:00	0	Good	SO2	SO2
13:00	1	Good	NO2	NO2	None	None
13:00	46	Good	Ozone	Ozone	None	Children and people with asthma are the groups most at risk.
13:00	26	Good	PM10	PM10	None	People with respiratory disease are the group most at risk.
13:00	41	Good	PM2.5	PM2.5	None	People with respiratory or heart disease, the elderly and children are the groups most at risk.
12:00	0	Good	SO2	SO2
12:00	1	Good	NO2	NO2	None	None
12:00	46	Good	Ozone	Ozone	None	Children and people with asthma are the groups most at risk.
12:00	26	Good	PM10	PM10	None	People with respiratory disease are the group most at risk.
12:00	43	Good	PM2.5	PM2.5	None	People with respiratory or heart disease, the elderly and children are the groups most at risk.
11:00	0	Good	SO2	SO2
11:00	1	Good	NO2	NO2	None	None
11:00	46	Good	Ozone	Ozone	None	Children and people with asthma are the groups most at risk.
11:00	26	Good	PM10	PM10	None	People with respiratory disease are the group most at risk.
11:00	48	Good	PM2.5	PM2.5	None	People with respiratory or heart disease, the elderly and children are the groups most at risk.
10:00	0	Good	SO2	SO2
10:00	2	Good	NO2	NO2	None	None
10:00	45	Good	Ozone	Ozone	None	Children and people with asthma are the groups most at risk.
10:00	25	Good	PM10	PM10	None	People with respiratory disease are the group most at risk.
10:00	49	Good	PM2.5	PM2.5	None	People with respiratory or heart disease, the elderly and children are the groups most at risk.
09:00	0	Good	SO2	SO2
09:00	2	Good	NO2	NO2	None	None
09:00	42	Good	Ozone	Ozone	None	Children and people with asthma are the groups most at risk.
09:00	26	Good	PM10	PM10	None	People with respiratory disease are the group most at risk.
09:00	52	Moderate	PM2.5	PM2.5	Respiratory symptoms possible in unusually sensitive individuals, possible aggravation of heart or lung disease in people with cardiopulmonary disease and older adults.	People with respiratory or heart disease, the elderly and children are the groups most at risk.
08:00	0	Good	SO2	SO2
08:00	4	Good	NO2	NO2	None	None
08:00	44	Good	Ozone	Ozone	None	Children and people with asthma are the groups most at risk.
08:00	26	Good	PM10	PM10	None	People with respiratory disease are the group most at risk.