This map shows air quality in your area, updated hourly. This story tells you how to protect yourself from wildfire smoke.
Current Air Quality Monday, August 20 Monday, August 20 Air Quality Index The Air Quality Index, or AQI, much like an air quality “thermometer”, translates daily air pollution concentrations into a number on a scale between 0 and 500. The numbers in this scale are divided into six color-coded ranges, with numbers 0-300 as seen below. (0-50) Good No health impacts are expected when air quality is in this range. (51-100) Moderate Unusually sensitive people should consider limiting prolonged outdoor exertion. (101-150) Unhealthy for Sensitive Groups Active children and adults, and people with respiratory disease, such as asthma, should limit outdoor exertion. (151-200) Unhealthy Active children and adults, and people with respiratory disease, such as asthma, should avoid prolonged outdoor exertion; everyone else, especially children, should limit prolonged outdoor exertion. (201-300) Very Unhealthy Active children and adults, and people with respiratory disease, such as asthma, should avoid all outdoor exertion; everyone else, especially children, should limit outdoor exertion. 5 Day Forecast Air Quality Forecast Thu Fri Sat Sun Mon North Counties 46 152 M M M North Counties Coast and Central Bay 57 124 M M M Eastern District Eastern District 53 105 M M M Eastern District South Central Bay 50 107 M M M Eastern District Santa Clara Valley 66 110 M M M Eastern District SOURCE: AIRNow, Spare the Air
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