Bristol

Data time: 10/10/2026 10:00 PM ET

Hour	AQI	Class	Program	Responsible Pollutant	Activity Caution	Risk Groups
22:00	9	Good	PM10	PM10	None	People with respiratory disease are the group most at risk.
22:00	4	Good	PM2.5	PM 2.5	None	People with respiratory or heart disease, the elderly and children are the groups most at risk.
21:00	9	Good	PM10	PM10	None	People with respiratory disease are the group most at risk.
21:00	4	Good	PM2.5	PM 2.5	None	People with respiratory or heart disease, the elderly and children are the groups most at risk.
20:00	10	Good	PM10	PM10	None	People with respiratory disease are the group most at risk.
20:00	6	Good	PM2.5	PM 2.5	None	People with respiratory or heart disease, the elderly and children are the groups most at risk.
19:00	10	Good	PM10	PM10	None	People with respiratory disease are the group most at risk.
19:00	8	Good	PM2.5	PM 2.5	None	People with respiratory or heart disease, the elderly and children are the groups most at risk.
18:00	11	Good	PM10	PM10	None	People with respiratory disease are the group most at risk.
18:00	8	Good	PM2.5	PM 2.5	None	People with respiratory or heart disease, the elderly and children are the groups most at risk.
17:00	11	Good	PM10	PM10	None	People with respiratory disease are the group most at risk.