DOWNTOWN SES

Data time: 9/21/2026 2:00 PM PT

Hour	AQI	Class	Program	Responsible Pollutant	Activity Caution	Risk Groups
14:00	39	Good	OzonePPM8	01_OZONE	None	None.
14:00	19	Good	PM10	22_PM10	None	People with respiratory disease are the group most at risk.
14:00	47	Good	PM2.5	21_PM25	None	None.
14:00	2	Good	NO2 PPB	04_TRUE NO2	None	None
13:00	38	Good	OzonePPM8	01_OZONE	None	None.
13:00	19	Good	PM10	22_PM10	None	People with respiratory disease are the group most at risk.
13:00	47	Good	PM2.5	21_PM25	None	None.
13:00	2	Good	NO2 PPB	04_TRUE NO2	None	None
12:00	37	Good	OzonePPM8	01_OZONE	None	None.
12:00	19	Good	PM10	22_PM10	None	People with respiratory disease are the group most at risk.
12:00	48	Good	PM2.5	21_PM25	None	None.
12:00	2	Good	NO2 PPB	04_TRUE NO2	None	None
11:00	36	Good	OzonePPM8	01_OZONE	None	None.
11:00	19	Good	PM10	22_PM10	None	People with respiratory disease are the group most at risk.
11:00	48	Good	PM2.5	21_PM25	None	None.
11:00	3	Good	NO2 PPB	04_TRUE NO2	None	None
10:00	36	Good	OzonePPM8	01_OZONE	None	None.
10:00	20	Good	PM10	22_PM10	None	People with respiratory disease are the group most at risk.
10:00	49	Good	PM2.5	21_PM25	None	None.
10:00	3	Good	NO2 PPB	04_TRUE NO2	None	None
09:00	35	Good	OzonePPM8	01_OZONE	None	None.
09:00	20	Good	PM10	22_PM10	None	People with respiratory disease are the group most at risk.
09:00	51	Moderate	PM2.5	21_PM25	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.