Rockingham Co.

Data time: 4/16/2025 11:00 PM ET

Hour	AQI	Class	Program	Responsible Pollutant	Activity Caution	Risk Groups
23:00	0	Good	SO2	SO2
23:00	19	Good	NO2	NO2	None	None
23:00	7	Good	PM10	PM10	None	People with respiratory disease are the group most at risk.
22:00	0	Good	SO2	SO2
22:00	12	Good	NO2	NO2	None	None
22:00	7	Good	PM10	PM10	None	People with respiratory disease are the group most at risk.
21:00	0	Good	SO2	SO2
21:00	21	Good	NO2	NO2	None	None
21:00	7	Good	PM10	PM10	None	People with respiratory disease are the group most at risk.
20:00	0	Good	SO2	SO2
20:00	12	Good	NO2	NO2	None	None
20:00	6	Good	PM10	PM10	None	People with respiratory disease are the group most at risk.
19:00	0	Good	SO2	SO2
19:00	1	Good	NO2	NO2	None	None
19:00	6	Good	PM10	PM10	None	People with respiratory disease are the group most at risk.
18:00	0	Good	SO2	SO2
18:00	0	Good	NO2	NO2	None	None
18:00	23	Good	Ozone	Ozone	None	Children and people with asthma are the groups most at risk.