![]() ![]() Lung diseases such as asthma or chronic obstructive pulmonary disease (COPD), including bronchitis and emphysema.People most likely to have health problems from breathing smoke include: Several groups of people, especially those with pre-existing heart and lung conditions, are more at-risk for severe health impacts. Most people are likely to have minor symptoms. Inhaling smoke is not good for anyone, even healthy people. This means the air quality is not meeting the federal, health-based air quality standard. ![]() If the AQI is over 100 then it is in the Unhealthy for Sensitive Groups/Orange range. Why is the AQI updated only once an hour? Learn more about the AQI and NowCast calculations. The NowCast is a very effective tool to report near real-time air quality that correlates to the health-based standards. For ozone, the standard is an eight-hour average, and for particle pollution it is a 24-hour standard. Why don’t we provide a one-hour, stand-alone value? Because there is not a one hour health-based standard. More recent hourly air pollution readings (e.g., last three hours) are given greater weight in determining the NowCast index value when air quality is changing more rapidly, as may be the case when wildfire smoke affects air quality. The NowCast calculation is designed to be responsive to rapidly changing air quality conditions. To address this, EPA developed the NowCast to report air quality that is near real-time (referred to as “Current Air Quality” reported at the top of this webpage.) A rolling 24-hour average report also isn’t very useful when conditions rapidly change, such as during a dust storm or wildfire. This means the official daily AQI is not known until the following day. ![]() For particulate matter, it is a 24-hour average, midnight-to-midnight. Numeric Value: 301-500Īir Quality Monitoring & Forecasting FAQsĮach pollutant has its own health-based standard. The entire population is more likely to be affected. Hazardous – Health warnings of emergency conditions. Very Unhealthy – Health alert: everyone may experience more serious health effects. Unhealthy – Everyone may begin to experience health effects members of sensitive groups may experience more serious health effects. The general public is not likely to be affected. Unhealthy for Sensitive Groups – Members of sensitive groups may experience health effects. Moderate – Air quality is acceptable however, for some pollutants there may be a moderate health concern for a very small number of people who are unusually sensitive to air pollution. Good – Air quality is considered satisfactory, and air pollution poses little or no risk. Preview Only: Edit these values within the WP Admin > AQI Monitoring & Burn Status ![]()
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