Health Effects Information

 Air Quality 
Air Quality Index
 Protect Your Health 
 Good  0-50
 No health impacts are expected when air quality is in this range.
 Moderate
 51-100
 Unusually sensitive people should consider limiting prolonged outdoor  exertion.
 Unhealthy  for Sensitive  Groups
 101-150
 Active children and adults, and people with respiratory disease, such as  asthma, should limit prolonged outdoor exertion.
 Unhealthy
 151-200
 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.
 Very  Unhealthy  (Alert)
 201-300
 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.
 Hazardous  (Alert)
 301-500
 Health alert: Everyone may experience more serious health effects.


AIRNow: Current, Local and National Air Quality Information and Forecasts