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NASA

Data time: 7/9/2025 1:00 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	23	PPB
PM10	17	UG/M3
PM2.5	7.2	UG/M3

Historical Data Concentration

Hour	AQI	Class	Program	Responsible Pollutant	Activity Caution	Risk Groups
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	21	Good	Ozone	Ozone	None	Children and people with asthma are the groups most at risk.
01:00	16	Good	PM10	PM10	None	People with respiratory disease are the group most at risk.
01:00	40	Good	PM2.5	PM2.5	None	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	2	Good	NO2	NO2	None	None
00:00	23	Good	Ozone	Ozone	None	Children and people with asthma are the groups most at risk.
00:00	16	Good	PM10	PM10	None	People with respiratory disease are the group most at risk.
00:00	35	Good	PM2.5	PM2.5	None	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.
23:00	3	Good	NO2	NO2	None	None
23:00	16	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	2	Good	NO2	NO2	None	None
22:00	16	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	2	Good	NO2	NO2	None	None
21:00	16	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	2	Good	NO2	NO2	None	None
20:00	25	Good	Ozone	Ozone	None	Children and people with asthma are the groups most at risk.