Tag: Exceptional Events Program

Exceptional events are unusual or naturally occurring events that can affect air quality but are not reasonably controllable using techniques tribal, state or local air agencies may implement in order to attain and maintain the National Ambient Air Quality Standards. Exceptional events are events for which the normal planning and regulatory process established by the…

The Division on Air Quality would like to help Utah residents celebrate safely by reminding everyone of the potential for high concentrations of smoke associated with fireworks displays. This smoke is largely particulate matter (PM). In prior years, DAQ has monitored extremely high concentrations of both PM10 and PM2.5 (the fine and the very fine…

The following is a list of exceptional events documents that have been submitted to EPA since 2008. High Wind Events 2015 2010 2009 2008 Wildfire Events 2017 2015 2013 2012 2009 2008 Fireworks Events 2017 2014 2013 2012 2011 2010 2009 2008

In dry areas like Utah, windblown dust maybe a significant air pollution problem. From spring through fall, unusually high winds can combine with dry surface conditions to result in dust storms. These dust storms can lead to extremely high levels of particulate matter in the air. Much of this PM is small enough to be…