NASA

Data time: 3/12/2026 4:00 AM ET

Monitoring Site

Location
Address:	NASA Langley Research Center
City:	Hampton
Latitude:	37.103733
Longitude:	-76.387017
Region:	Tidewater

Air Quality Information
Pollutant	Concentration	Units of Measure
SO2	0	PPB
CO	0.1	PPM
Ozone	37	PPB
PM10	23	UG/M3
PM2.5	18.2	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	34	Good	Ozone	Ozone	None	Children and people with asthma are the groups most at risk.
04:00	21	Good	PM10	PM10	None	People with respiratory disease are the group most at risk.
04:00	68	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	34	Good	Ozone	Ozone	None	Children and people with asthma are the groups most at risk.
03:00	20	Good	PM10	PM10	None	People with respiratory disease are the group most at risk.
03:00	73	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	34	Good	Ozone	Ozone	None	Children and people with asthma are the groups most at risk.
02:00	20	Good	PM10	PM10	None	People with respiratory disease are the group most at risk.
02:00	74	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	34	Good	Ozone	Ozone	None	Children and people with asthma are the groups most at risk.
01:00	19	Good	PM10	PM10	None	People with respiratory disease are the group most at risk.
01:00	71	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	33	Good	Ozone	Ozone	None	Children and people with asthma are the groups most at risk.
00:00	19	Good	PM10	PM10	None	People with respiratory disease are the group most at risk.
00:00	67	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	1	Good	CO	CO	None	People with heart disease are the group most at risk.