Bryan Park

Data time: 9/18/2025 6:00 PM ET

Hour	AQI	Class	Program	Responsible Pollutant	Activity Caution	Risk Groups
18:00	2	Good	CO	CO	None	People with heart disease are the group most at risk.
18:00	28	Good	NO2	NO2	None	None
18:00	28	Good	PM2.5	PM2.5	None	People with respiratory or heart disease, the elderly and children are the groups most at risk.
17:00	2	Good	CO	CO	None	People with heart disease are the group most at risk.
17:00	2	Good	NO2	NO2	None	None
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	2	Good	CO	CO	None	People with heart disease are the group most at risk.
16:00	6	Good	NO2	NO2	None	None
16:00	24	Good	PM2.5	PM2.5	None	People with respiratory or heart disease, the elderly and children are the groups most at risk.
15:00	2	Good	CO	CO	None	People with heart disease are the group most at risk.
15:00	4	Good	NO2	NO2	None	None
15:00	23	Good	PM2.5	PM2.5	None	People with respiratory or heart disease, the elderly and children are the groups most at risk.
14:00	2	Good	CO	CO	None	People with heart disease are the group most at risk.
14:00	3	Good	NO2	NO2	None	None
14:00	22	Good	PM2.5	PM2.5	None	People with respiratory or heart disease, the elderly and children are the groups most at risk.
13:00	2	Good	CO	CO	None	People with heart disease are the group most at risk.
13:00	3	Good	NO2	NO2	None	None