NASA

Data time: 9/17/2025 9:00 PM 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
NO2	2	PPB
Ozone	12	PPB
PM10	6	UG/M3
PM2.5	6.1	UG/M3

Historical Data Concentration

Hour	AQI	Class	Program	Responsible Pollutant	Activity Caution	Risk Groups
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	11	Good	Ozone	Ozone	None	Children and people with asthma are the groups most at risk.
21:00	6	Good	PM10	PM10	None	People with respiratory disease are the group most at risk.
21:00	34	Good	PM2.5	PM2.5	None	People with respiratory or heart disease, the elderly and children are the groups 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	13	Good	Ozone	Ozone	None	Children and people with asthma are the groups most at risk.
20:00	6	Good	PM10	PM10	None	People with respiratory disease are the group most at risk.
20:00	32	Good	PM2.5	PM2.5	None	People with respiratory or heart disease, the elderly and children are the groups 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	2	Good	NO2	NO2	None	None
19:00	17	Good	Ozone	Ozone	None	Children and people with asthma are the groups most at risk.
19:00	5	Good	PM10	PM10	None	People with respiratory disease are the group most at risk.
19:00	29	Good	PM2.5	PM2.5	None	People with respiratory or heart disease, the elderly and children are the groups 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	2	Good	NO2	NO2	None	None
18:00	20	Good	Ozone	Ozone	None	Children and people with asthma are the groups most at risk.
18:00	5	Good	PM10	PM10	None	People with respiratory disease are the group most at risk.
18:00	26	Good	PM2.5	PM2.5	None	People with respiratory or heart disease, the elderly and children are the groups most at risk.
17:00	0	Good	SO2	SO2
17:00	1	Good	CO	CO	None	People with heart disease are the group most at risk.
17:00	2	Good	NO2	NO2	None	None
17:00	20	Good	Ozone	Ozone	None	Children and people with asthma are the groups most at risk.
17:00	5	Good	PM10	PM10	None	People with respiratory disease are the group most at risk.
17:00	25	Good	PM2.5	PM2.5	None	People with respiratory or heart disease, the elderly and children are the groups most at risk.
16:00	0	Good	SO2	SO2
16:00	1	Good	CO	CO	None	People with heart disease are the group most at risk.
16:00	2	Good	NO2	NO2	None	None
16:00	15	Good	Ozone	Ozone	None	Children and people with asthma are the groups most at risk.
16:00	5	Good	PM10	PM10	None	People with respiratory disease are the group most at risk.