NOAA

Data time: 3/12/2026 4:00 AM 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	46	UG/M3
PM2.5	14.6	UG/M3

Historical Data Concentration

Hour	AQI	Class	Program	Responsible Pollutant	Activity Caution	Risk Groups
04:00	0	Good	SO2	SO2
04:00	1	Good	CO	CO	None	People with heart disease are the group most at risk.
04:00	1	Good	NO2	NO2	None	None
04:00	43	Good	PM10	PM10	None	People with respiratory disease are the group most at risk.
04:00	61	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.
03:00	1	Good	CO	CO	None	People with heart disease are the group most at risk.
03:00	43	Good	PM10	PM10	None	People with respiratory disease are the group most at risk.
03:00	77	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.
02:00	0	Good	SO2	SO2
02:00	1	Good	CO	CO	None	People with heart disease are the group most at risk.
02:00	0	Good	NO2	NO2	None	None
02:00	42	Good	PM10	PM10	None	People with respiratory disease are the group most at risk.
02:00	77	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.
01:00	0	Good	SO2	SO2
01:00	1	Good	CO	CO	None	People with heart disease are the group most at risk.
01:00	41	Good	PM10	PM10	None	People with respiratory disease are the group most at risk.
01:00	80	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.
00:00	0	Good	SO2	SO2
00:00	1	Good	CO	CO	None	People with heart disease are the group most at risk.
00:00	0	Good	NO2	NO2	None	None
00:00	40	Good	PM10	PM10	None	People with respiratory disease are the group most at risk.
00:00	76	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.
23:00	0	Good	SO2	SO2
23:00	0	Good	CO	CO	None	People with heart disease are the group most at risk.
23:00	0	Good	NO2	NO2	None	None