Current Air Quality
Site	Time	AQI	Class	Pollutant	Concentration	Activity Caution	Risk Groups
ALPINE	11/9/2026 3:00:00 PM PT	46	Good	01_OZONE	0.05 PPM	None	None.
CARMEL MT RCH	11/9/2026 3:00:00 PM PT	18	Good	21_PM25	3.3 UG/M3	None	None.
CHULA VISTA	11/9/2026 3:00:00 PM PT	38	Good	01_OZONE	0.041 PPM	None	None.
DOWNTOWN SES	11/9/2026 3:00:00 PM PT	31	Good	01_OZONE	0.034 PPM	None	None.
EL CAJON LES	11/9/2026 3:00:00 PM PT	39	Good	01_OZONE	0.042 PPM	None	None.
KEARNY MESA	11/9/2026 3:00:00 PM PT	44	Good	01_OZONE	0.047 PPM	None	None.
OTAY MESA DVN	11/9/2026 3:00:00 PM PT	42	Good	01_OZONE	0.045 PPM	None	None.
PENDLETON	11/9/2026 3:00:00 PM PT	44	Good	01_OZONE	0.047 PPM	None	None.
SAN YSIDRO	11/9/2026 3:00:00 PM PT	59	Moderate	21_PM25	13.5 UG/M3	Unusually sensitive people should consider reducing prolonged or heavy exertion.	People with respiratory or heart disease, the elderly and children are the groups most at risk.