Current Air Quality
Site Time AQI Class Pollutant Concentration Activity Caution Risk Groups
ALPINE 9/20/2026 11:00:00 AM PT 46 Good 21_PM25 8.2 UG/M3 None None.
CARMEL MT RCH 9/20/2026 11:00:00 AM PT 51 Moderate 21_PM25 9.1 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.
CHULA VISTA 9/20/2026 11:00:00 AM PT 53 Moderate 21_PM25 10.1 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 9/20/2026 11:00:00 AM PT 55 Moderate 21_PM25 11.4 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.
EL CAJON LES 9/20/2026 11:00:00 AM PT 51 Moderate 21_PM25 9.3 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 9/20/2026 11:00:00 AM PT 53 Moderate 21_PM25 10.2 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.
OTAY MESA DVN 9/20/2026 11:00:00 AM PT 55 Moderate 21_PM25 11.2 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.
PENDLETON 9/20/2026 11:00:00 AM PT 52 Moderate 21_PM25 9.7 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 9/20/2026 11:00:00 AM PT 56 Moderate 21_PM25 11.9 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.