Current Air Quality
Site Time AQI Class Pollutant Concentration Activity Caution Risk Groups
ALPINE 7/31/2026 2:00:00 AM PT 48 Good 21_PM25 8.7 UG/M3 None None.
CARMEL MT RCH 7/31/2026 2:00:00 AM PT 52 Moderate 21_PM25 9.8 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.
CHULA VISTA 7/31/2026 2:00:00 AM PT 53 Moderate 21_PM25 10.4 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.
DOWNTOWN SES 7/31/2026 2:00:00 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.
EL CAJON LES 7/31/2026 2:00:00 AM PT 53 Moderate 21_PM25 10 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 7/31/2026 2:00:00 AM PT 54 Moderate 21_PM25 10.9 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.
OTAY MESA DVN 7/31/2026 2:00:00 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 7/31/2026 2:00:00 AM PT 53 Moderate 21_PM25 10 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 7/31/2026 2:00:00 AM PT 57 Moderate 21_PM25 12.3 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.