NOAA

Data time: 8/31/2025 11:00 PM ET

Monitoring Site

Location
Address:	NOAA Storage Facility
City:	Norfolk
Latitude:	36.85555
Longitude:	-76.30135
Region:	Tidewater

Air Quality Information
Pollutant	Concentration	Units of Measure
SO2	0	PPB
CO	0.1	PPM
NO2	1	PPB
PM10	8	UG/M3

Historical Data Concentration

Hour	AQI	Class	Program	Responsible Pollutant	Activity Caution	Risk Groups
23:00	0	Good	SO2	SO2
23:00	1	Good	CO	CO	None	People with heart disease are the group most at risk.
23:00	1	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	1	Good	CO	CO	None	People with heart disease are the group most at risk.
22:00	6	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	1	Good	CO	CO	None	People with heart disease are the group most at risk.
21:00	5	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	1	Good	CO	CO	None	People with heart disease are the group most at risk.
20:00	1	Good	NO2	NO2	None	None
20:00	8	Good	PM10	PM10	None	People with respiratory disease are the group most at risk.
19:00	0	Good	SO2	SO2
19:00	1	Good	CO	CO	None	People with heart disease are the group most at risk.
19:00	6	Good	NO2	NO2	None	None
19:00	8	Good	PM10	PM10	None	People with respiratory disease are the group most at risk.
18:00	0	Good	SO2	SO2
18:00	1	Good	CO	CO	None	People with heart disease are the group most at risk.
18:00	5	Good	NO2	NO2	None	None