Piedmont RO

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

Location
Address:	DEQ Piedmont Regional Office
City:	Glen Allen
Latitude:	37.671389
Longitude:	-77.567778
Region:	Piedmont

Air Quality Information
Pollutant	Concentration	Units of Measure
PM10	19	UG/M3
PM2.5	11.6	UG/M3

Historical Data Concentration

Hour	AQI	Class	Program	Responsible Pollutant	Activity Caution	Risk Groups
04:00	18	Good	PM10	PM10	None	People with respiratory disease are the group most at risk.
04:00	56	Moderate	PM2.5	PM 2.5	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	18	Good	PM10	PM10	None	People with respiratory disease are the group most at risk.
03:00	55	Moderate	PM2.5	PM 2.5	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	18	Good	PM10	PM10	None	People with respiratory disease are the group most at risk.
02:00	54	Moderate	PM2.5	PM 2.5	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	18	Good	PM10	PM10	None	People with respiratory disease are the group most at risk.
01:00	54	Moderate	PM2.5	PM 2.5	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	18	Good	PM10	PM10	None	People with respiratory disease are the group most at risk.
00:00	55	Moderate	PM2.5	PM 2.5	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.