Rockingham Co.

Data time: 10/26/2026 3:00 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	3	PPB
Ozone	43	PPB
PM10	22	UG/M3
PM2.5	6.3	UG/M3

Historical Data Concentration

Hour	AQI	Class	Program	Responsible Pollutant	Activity Caution	Risk Groups
15:00	0	Good	SO2	SO2
15:00	3	Good	NO2	NO2	None	None
15:00	40	Good	Ozone	Ozone	None	Children and people with asthma are the groups most at risk.
15:00	20	Good	PM10	PM10	None	People with respiratory disease are the group most at risk.
15:00	35	Good	PM2.5	PM2.5	None	People with respiratory or heart disease, the elderly and children are the groups most at risk.
14:00	0	Good	SO2	SO2
14:00	3	Good	NO2	NO2	None	None
14:00	40	Good	Ozone	Ozone	None	Children and people with asthma 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	34	Good	PM2.5	PM2.5	None	People with respiratory or heart disease, the elderly and children are the groups most at risk.
13:00	0	Good	SO2	SO2
13:00	3	Good	NO2	NO2	None	None
13:00	39	Good	Ozone	Ozone	None	Children and people with asthma are the groups most at risk.
13:00	19	Good	PM10	PM10	None	People with respiratory disease are the group most at risk.
13:00	31	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	3	Good	NO2	NO2	None	None
12:00	37	Good	Ozone	Ozone	None	Children and people with asthma are the groups most at risk.
12:00	19	Good	PM10	PM10	None	People with respiratory disease are the group most at risk.
12:00	31	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	4	Good	NO2	NO2	None	None
11:00	33	Good	Ozone	Ozone	None	Children and people with asthma are the groups most at risk.
11:00	18	Good	PM10	PM10	None	People with respiratory disease are the group most at risk.
11:00	34	Good	PM2.5	PM2.5	None	People with respiratory or heart disease, the elderly and children are the groups most at risk.
10:00	5	Good	NO2	NO2	None	None
10:00	36	Good	Ozone	Ozone	None	Children and people with asthma are the groups most at risk.
10:00	18	Good	PM10	PM10	None	People with respiratory disease are the group most at risk.