Current Air Quality
Site Time AQI Class Pollutant Concentration Activity Caution Risk Groups
ALPINE 5/21/2026 7:00:00 PM PT 57 Moderate 21_PM25 12.2 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.
CARMEL MT RCH 5/21/2026 7:00:00 PM PT 68 Moderate 21_PM25 18.4 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.
CHULA VISTA 5/21/2026 7:00:00 PM PT 68 Moderate 21_PM25 18.1 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.
DOWNTOWN SES 5/21/2026 7:00:00 PM PT 69 Moderate 21_PM25 18.8 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.
EL CAJON LES 5/21/2026 7:00:00 PM PT 65 Moderate 21_PM25 16.5 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.
KEARNY MESA 5/21/2026 7:00:00 PM PT 69 Moderate 21_PM25 19 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.
OTAY MESA DVN 5/21/2026 7:00:00 PM PT 72 Moderate 21_PM25 20.4 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.
PENDLETON 5/21/2026 7:00:00 PM PT 67 Moderate 21_PM25 17.5 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.
SAN YSIDRO 5/21/2026 7:00:00 PM PT 78 Moderate 21_PM25 23.4 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.