Tag: Ozone

  • 2014 Uinta Basin Ozone Studies (UBOS) Study

    The 2014 Study focused on the ways snow chemistry and aerosol chemistry contribute to the formation of ozone. The study looked at quantifying the contribution of nitrous acid (HONO) and formaldehyde (HCHO) to the chemical reactions responsible for ozone formation. Prior studies in the Basin showed that the radical chemistry that drives ozone production is…

  • 2013 Uinta Basin Winter Ozone Study: Final Report

    Table of Contents Executive Summary Preface, Contributors and Acknowledgment Synthesis of Results Distributed Measurements of Air Quality and Meteorology Analysis of Aircraft Observations Intensive Chemical Measurements at Horse Pool Balloon-Borne Vertical Profiles of Ozone, Methane, Non-Methane Hydrocarbons, Nitrogen Oxides and Meteorological Parameters Ozone Deposition Velocity During Snow-Covered and Non-Snow-Covered Periods by Eddy Covariance Tethered Ozonesonde…

  • 2011 Uinta Basin Ozone Studies (UBOS) Study

    During the winter of 2010-2011, the Division of Air Quality (DAQ) partnered with Utah State University Energy Dynamics Lab to study elevated winter ozone levels in the Uinta Basin. The study was done to understand the extent and behavior of winter ozone development in the Basin. Ten portable air monitors were placed throughout the Basin…

  • Ozone Standards and Development of a State Implementation Plan (SIP): Uinta Basin

    Jump to: Levels Standards SIP Reductions Proposed changes to the existing ozone standard combined with increasing incidences of high ozone values in the Uinta Basin could require further reductions in emissions from oil and gas operations. If ozone levels exceed federal air quality standards, the Basin could be designated as a nonattainment area, requiring preparation…

  • What is Ozone?

    Ozone is an odorless, colorless gas made up of three oxygen molecules (O3) and is a natural part of the environment. It occurs both in the Earth’s upper atmosphere, or stratosphere, and at ground level in the lower atmosphere, or troposphere. Approximately 90 percent of atmospheric ozone is located in the stratosphere, which begins about…

  • Frequently Asked Questions about Ozone and Your Health

    On hot, sunny summer days, ground level ozone can rise to unhealthy levels. Breathing ozone can trigger a variety of symptoms, including coughing, throat irritation, and chest pain. It is important to understand the health effects of ozone and the simple steps you can take to protect yourself. How can ozone affect health? Ozone affects…

  • 50 Summer Suggestions Regarding Ozone

    Drive Less Driving less doesn’t mean you have to stay home. Try any of these ways to get to where you want to go: Drive Smarter Driving smarter keeps pollution at a minimum. At Home At Work

  • Ozone: Let’s Make “Zero Bad-Air Days” Our Goal this Summer

    Ozone can harm our health. That’s why Utah DEQ is urging everybody to make this a “Zero Bad-Air Days” summer by making small changes that reduce emissions.

  • Check Daily Air Quality Forecast to Plan Ahead & Protect Health

    Utah DEQ provides air-quality forecasting throughout the summer through its UtahAir app, website, and regular email updates.

  • Great Salt Lake Summer Ozone Study

    DAQ (Division of Air Quality) monitoring found high levels of ozone near the Great Salt Lake from 2010-2013. The Division also found a wide variance in the concentration of ozone in the stable air pocket over the lake during the summertime. Though the mechanisms behind air flow in lake and coastal regions have been studied…

  • Ozone: EPA Designates Marginal Nonattainment Areas in Utah

    The Wasatch Front and parts of the Uinta Basin were designated as Marginal nonattainment areas for ozone this week by the EPA. A Marginal designation is the least stringent classification for a nonattainment area and doesn’t require the state to submit a formal State Implementation Plan (SIP).

  • Chemical Mechanisms at Low Temperatures

    Wintertime ozone in the Uinta Basin is unique and requires improvements to the photochemical models used for winter conditions. Current chemical mechanisms within the modeling system assume a summertime temperature of 300 K (80° F) when performing important chemical reactions, far different from the wintertime temperatures in the Basin. In order to properly model the…

  • CAMx Snow Cover Treatment

    Wintertime ozone is a serious air quality issue in the Uinta Basin. The situation is unique and requires improvements to the photochemical models used for winter conditions. High concentrations of wintertime ozone occur over snow-covered surfaces. Snow cover influences wintertime ozone by increasing surface albedo and thus increasing photolysis rates, inhibiting the surface deposition of…

  • DEQ Forecasters Keep Their Eyes on the Sky during Ozone Season

    By Kimberly Kreykes Like many people, my day starts with the weather forecast. Not just because it is my passion, but because it is my responsibility to stay informed — I am the lead air-quality forecaster for the Utah Department of Environmental Quality’s (DEQ’s) Division of Air Quality (DAQ). Along with two other DAQ forecasters,…

  • Air Quality STEPPs up Efforts to Locate Leaks

    by Whitney Oswald Imagine trying to find “invisible” leaks in an oil and gas storage tank. Then try finding these leaks in hundreds of storage tanks scattered across a large, remote area. You know the culprit, and you know these leaks are a significant source of volatile organic compound (VOC) emissions from oil and gas…

  • Air Quality: New Ozone Standard Designed to Protect Public Health

    By Jay Baker On October 1, 2015, the Environmental Protection Agency (EPA) set a new National Ambient Air Quality Standard (NAAQS) for ground-level ozone, lowering it from 75 to 70 parts per billion (ppb). The change was based on thousands of scientific studies that demonstrated the need for a lower standard to protect public health…

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