Category: Air Quality

  • Beehive Emission Reduction Plan

    Utah’s Beehive Emission Reduction plan to reduce statewide greenhouse gas emissions through EPA’s Climate Pollution Reduction Grant program Download the Comprehensive Plan Comprehensive Plan Engagement Opportunities Utah’s Comprehensive Beehive Emission Reduction Plan, is a long-range plan to reduce the state’s greenhouse gas emissions while supporting continued population and economic growth. Planning ahead allows Utah to…

  • Charge Your Yard Incentive Program for Businesses

    The Charge Your Yard business program offers incentives for yard care businesses that primarily operate in Davis, Salt Lake, Tooele, Utah, and Weber counties to switch from gas-powered to electric yard equipment. Looking for the incentive program for residents? Charge Your Yard for Residents Yard care businesses:Get $3,000 to exchange your gas-powered equipment for electric!…

  • The Salt Lake Regional Smoke, Ozone and Aerosol Study (SAMOZA)

    The University of Washington, Utah State University and the University of Montana will conduct a detailed study of ozone (O3) and fine particulate matter (PM2.5) in the Salt Lake Valley (SLV). Using new VOC observations, plus existing measurements of NOx, CO and PM2.5, they will use a variety of analyses to understand O3 formation and…

  • Improving Smoke Detection and Quantifying the Wildfire Smoke Impacts on Local Air Quality Using Modeling and Machine Learning Techniques

    Though it can be easy to tell that wildfire smoke has negative impacts on urban air quality, there is no tool to quantitatively measure wildfire impacts, nor to identify whether exceedance days are due to wildfire smoke or other emissions. The first scope of this work will develop a new plume rise model to estimate…

  • Improved Vegetation Data for the Biogenic Emission Inventory of Wasatch Front

    The goal of this project is to improve numerical predictions of regional ozone and aerosol distributions in the Wasatch Front by developing more accurate estimates of biogenic volatile organic carbon (BVOC) emissions for the urban areas within the Northern Wasatch Front. Specifically, this project will upgrade modeled MEGAN (Model of Emissions of Gasses and Aerosols…

  • Northern Wasatch Front Moderate Ozone SIP TechnicalSupport Documentation

    Utah Division of Air Quality (UDAQ) developed and submitted to EPA for review the Northern Wasatch Front (NWF) Moderate State Implementation Plan (SIP) for the 2015 8-hour ozone National Ambient Air Quality Standard. The following tabs contain the technical support documentation (TSD) pertaining to the development of the SIP and associated administrative rules. These are…

  • Methodology: Vehicle Miles Traveled Compared to 2-Stroke Lawn Equipment Use

    Comparison infographics for ChargeYourYard.utah.gov were created using the following methodology: NOx + Volatile Organic Compounds emission for an average 2019 model year passenger vehicle compared to 2-stroke lawn equipment (represented by nonroad default scale) in the Northern Wasatch Front geographic area. MOVES Emission Modeling System For Passenger Car: For Lawn & Garden 2-Stroke Equipment: Formulas…

  • Charge Your Yard Incentive Programs

    The Charge Your Yard program offers incentives for residents and yard care businesses to switch from gas-powered to electric yard equipment. Sign up for our mailing list to receive updates on future opportunities! Incentive programs Handheld yard equipment only. No lawnmowers! MARCH 2026: Resident program JANUARY 2026: Lawn care business program Related Sign up to…

  • Inland Port Monitoring

    The Utah Department of Environmental Quality (DEQ) has been tasked with establishing baseline conditions for stormwater and air quality within the statutorily defined area of Utah Inland Port (UIP) Authority. In addition, DEQ has been a part of land remediation and clean-up efforts at the North Temple Landfill Redevelopment site. Data collected by DEQ through…

  • Lead-Based Paint Program

    Find a certified professional for your project, learn how to become a certified contractor, or get the information you need to keep your family safe from lead-based paint exposure. Upcoming events Lead in soil Is your soil safe? Find out with a free lead screening from your local health department. Learn how to collect a…

  • Northern Wasatch Front Ozone Nonattainment Area

    This page contains information about summertime ozone in the Northern Wasatch Front nonattainment area and an interactive emission inventory for the area. You can use thisInteractive Inventory to explore and learn about different emission sectors and sources (SCCs) within the Northern Wasatch Front, and where the emissions originate that drive the local ozone formation. What…

  • Particulate Chloride in the Urban Environment

    The University of Utah will conduct a study intended to significantly reduce uncertainties regarding the temporal, spatial, and particle size distributions of particulate chloride. Through source apportionment, the study will also identify the dominant sources of this important halogen. These results will provide important emission inventory constraints for future air quality modeling efforts performed by…

  • Impacts of the Great Salt Lake on Summer Ozone Concentrations Along the Wasatch Front

    The University of Utah is conducting a study to determine the meteorological factors that contribute to elevated surface ozone near the Great Salt Lake. The core task for this project is to evaluate from ozone observations and meteorological observations and model analyses the timing of buildup in ozone in the southern Farmington Bay region and…

  • Development of Top-down Hydrocarbon Emission from Oil and Gas Production in the Uintah Basin

    Utah State University and the University of Utah will use a method known as top-down emission estimation to refine volatile organic compound emissions from oil and gas production based on long-term surface level measurements of methane and hydrocarbons in the Uintah Basin. The objective of this project is to improve the Utah Division of Air…

  • Development of a WRF-based Urban Canopy Model for the Greater Salt Lake City Area

    Brigham Young University will conduct a two-year project that will utilize state-of-the-science meteorological modeling with land use descriptions of the Great Salt Lake area to characterize impacts of urban growth on local meteorological conditions. Model methodology and usage will be documented so air quality modelers can use existing or self-developed future results for additional urban…

  • Assessing Wintertime Ozone Prediction Sensitivity to Photochemical Mechanism

    Ramboll and the Utah State University – Bingham Research Center (BRC) will conduct a study to thoroughly investigate wintertime ozone prediction sensitivity in the Uinta Basin among two current photochemical mechanisms using a consistent modeling platform. Recent air quality modeling conducted by BRC using different modeling systems indicates that the Regional Atmospheric Chemistry Mechanism (RACM)…

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