Current Air Quality
Site	Time	AQI	Class	Pollutant	Concentration	Activity Caution	Risk Groups
ALPINE	10/24/2026 3:00:00 PM PT	44	Good	01_OZONE	0.048 PPM	None	None.
CARMEL MT RCH	10/24/2026 3:00:00 PM PT	16	Good	21_PM25	2.9 UG/M3	None	None.
CHULA VISTA	10/24/2026 3:00:00 PM PT	41	Good	01_OZONE	0.044 PPM	None	None.
DOWNTOWN SES	10/24/2026 3:00:00 PM PT	28	Good	21_PM25	5.1 UG/M3	None	None.
EL CAJON LES	10/24/2026 3:00:00 PM PT	42	Good	01_OZONE	0.045 PPM	None	None.
KEARNY MESA	10/24/2026 3:00:00 PM PT	43	Good	01_OZONE	0.046 PPM	None	None.
OTAY MESA DVN	10/24/2026 3:00:00 PM PT	41	Good	01_OZONE	0.044 PPM	None	None.
PENDLETON	10/24/2026 3:00:00 PM PT	40	Good	01_OZONE	0.043 PPM	None	None.
SAN YSIDRO	10/24/2026 3:00:00 PM PT	52	Moderate	21_PM25	9.5 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.