Rockingham Co.

Data time: 10/10/2026 10:00 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	4	PPB
Ozone	31	PPB
PM10	20	UG/M3
PM2.5	5	UG/M3

Historical Data Concentration

Hour	AQI	Class	Program	Responsible Pollutant	Activity Caution	Risk Groups
22:00	0	Good	SO2	SO2
22:00	4	Good	NO2	NO2	None	None
22:00	29	Good	Ozone	Ozone	None	Children and people with asthma are the groups most at risk.
22:00	19	Good	PM10	PM10	None	People with respiratory disease are the group most at risk.
22:00	28	Good	PM2.5	PM2.5	None	People with respiratory or heart disease, the elderly and children are the groups most at risk.
21:00	0	Good	SO2	SO2
21:00	10	Good	NO2	NO2	None	None
21:00	27	Good	Ozone	Ozone	None	Children and people with asthma are the groups most at risk.
21:00	19	Good	PM10	PM10	None	People with respiratory disease are the group most at risk.
21:00	29	Good	PM2.5	PM2.5	None	People with respiratory or heart disease, the elderly and children are the groups most at risk.
20:00	0	Good	SO2	SO2
20:00	18	Good	NO2	NO2	None	None
20:00	29	Good	Ozone	Ozone	None	Children and people with asthma are the groups most at risk.
20:00	20	Good	PM10	PM10	None	People with respiratory disease are the group most at risk.
20:00	28	Good	PM2.5	PM2.5	None	People with respiratory or heart disease, the elderly and children are the groups most at risk.
19:00	0	Good	SO2	SO2
19:00	5	Good	NO2	NO2	None	None
19:00	36	Good	Ozone	Ozone	None	Children and people with asthma are the groups most at risk.
19:00	21	Good	PM10	PM10	None	People with respiratory disease are the group most at risk.
19:00	26	Good	PM2.5	PM2.5	None	People with respiratory or heart disease, the elderly and children are the groups most at risk.
18:00	0	Good	SO2	SO2
18:00	3	Good	NO2	NO2	None	None
18:00	35	Good	Ozone	Ozone	None	Children and people with asthma are the groups most at risk.
18:00	23	Good	PM10	PM10	None	People with respiratory disease are the group most at risk.
18:00	27	Good	PM2.5	PM2.5	None	People with respiratory or heart disease, the elderly and children are the groups most at risk.
17:00	0	Good	SO2	SO2
17:00	8	Good	NO2	NO2	None	None
17:00	31	Good	Ozone	Ozone	None	Children and people with asthma are the groups most at risk.
17:00	24	Good	PM10	PM10	None	People with respiratory disease are the group most at risk.