Category: Air Quality

  • School Bus Program:
    Be Idle Free

    In a landmark effort that has become a model for other states, the Utah State Office of Education, in partnership with the Utah Clean Cities Coalition, has developed a state school bus idle reduction program that has schoolchildren, their parents, and bus drivers cheering … and breathing deeply

  • Some Common Myths:
    Be Idle Free

    Many people are unaware that reducing the time a vehicle spends idling can make a big difference in both air quality and fuel costs.

  • Health Effects:
    Be Idle Free

    Idling can be bad for your health. While children, the elderly, and people with respiratory ailments are most vulnerable to the pollutants from vehicle exhaust, these emissions affect everybody.

  • Be Idle Free

    Idling your vehicle gets you nowhere. It increases our dependence on petroleum, reduces the fuel economy of your vehicle, costs you money, emits pollutants, and wastes precious natural resources.

  • Air Quality and Your Health

    Air Quality and Outdoor Exercise (337 KB) (2014)—Research presentation. Air Quality and Outdoor Exercise Poster (192 KB) (2014)—Research poster. Clearance of Particulate Matter from the Lungs (356 KB) (2014)—Research presentation. Lung Fluid Lining: The Lung’s First Line of Defense (235 KB) (2014)—Research presentation. Ozone Health Effects (2 MB) (2011)—Research presentation.

  • Small Business Environmental Assistance Program:
    Air Quality Research Program

    The Small Business Environmental Assistance Program helps small businesses with permitting assistance, emission calculations, technical issues, regulator interpretation, and pollution prevention techniques. Small Business Technical Assistance Technical Support Onsite Consultations US EPA Information Other Clean Air Act Section 507 Programs Ombudsman Services Contact Eleanor Divver ( (801) 536-0091 Compliance Advisory Panel (CAP) Advises and monitors…

  • National Emission Standards for Hazardous Air Pollutants (NESHAPs):
    Hazardous Air Pollutants and Small Business

    NESHAPs are regulations that regulate specific processes, like dry cleaners, that use specific chemicals, like perchloroethylene, called a hazardous air pollutant. If you can change your chemicals to a chemical that is not one on the list of HAPs you can avoid the rule. Below are the most commonly used small business NESHAPs with customized…

  • Air Quality Modeling Program

    Why Do We Need Models? The Division of Air Quality regularly measures the concentration of specific air pollutants at selected monitoring locations. However, the Division also needs the ability to make future projections of air pollution levels. Computer models are a relatively inexpensive and expedient means of providing this air quality information. For example, models…

  • Geographic Information Systems (GIS):
    Air Quality Modeling Program

    The Division has used Geographic Information Systems (GIS) for air quality modeling studies since 1993 by creating its own database of relevant spatial layers. This data helps in the creation of emission inventories for ozone and fine particulate modeling. This is done through the creation of demographic surrogates so that county-wide emissions can be further…

  • Regional Scale Air Pollution Modeling:
    Air Quality Modeling Program

    What Is An Air Pollution Model? A computer model simulates the meteorological conditions and chemical reactions that chemical govern air pollution formation and transport. Why Do We Need Air Pollution Models? How Are Air Pollution Models Used? Can We Believe The Model? DAQ’s Modeling Tools DAQ follows EPA guidelines and recommended models for all of…

  • 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…

  • Fireworks:
    Exceptional Events Program

    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…

  • Documentation:
    Exceptional Events Program

    Jump to: High Wind Wildfire Fireworks The following is a list of exceptional events documents that have been submitted to EPA since 2008. High Wind Events 2015 April 14, 2015 2010 April 27, 2010 March 30, 2010 2009 March 4, 2009 2008 May 20, 2008 April 29, 2008 April 19, 2008 April 15, 2008 EPA…

  • Windblown Dust:
    Exceptional Events Program

    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…

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