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OTAG Technical Supporting Document
Chapter 4 Table of Contents

Information provided for informational purposes only Note: EPA no longer updates this information, but it may be useful for as a reference or resource.

Part 1: Overview

Figures

  • Part I Cover Image

  • Figure 4-1

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  • Part II Cover Image

  • Figure 4-15(a)

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  • Part III Cover Images

    • 1. Background

    2. Introduction

    3.Origins and Patterns of the Ozone Problem in the OTAG Domain

  • What Is the OTAG Ozone Problem?
  • What Is the Pattern of Ozone Precursor Emissions?
  • What Are the Spatial Patterns of Ozone?
  • What Is the Range of Ozone Concentrations?
  • How Does Ozone Vary in Time?

    4. Ozone Transport in the OTAG Domain

  • Ozone Transport: Beneficial or Harmful?
  • What Are the Implied Ranges of Ozone Transport?

    5.Air Quality Comparisons to UAM-V Episodic Model Results

  • How Do Model Results Compare to Measured Concentrations?
  • How Does Transport During Modeling Episodes Compare to Episodes in General?
  • What Kind of Episodes Do Model Results Represent?
  • How Do Model Episode Concentrations Compare to Episodes in General?

    6.Air Quality Management Implications of the Data Analysis Results

  • Is Ozone Controllable by Measures Within the OTAG Domain?
  • Is There Evidence That Precursor Emissions Changes Cause Ozone Concentration Changes?
  • Do Air Quality Data Suggest High-Leverage Means for Controlling Ozone?

    7.Recommendations To Foster Future Air Quality Analyses

    Part II: Summary and Integration of Results

    1. Introduction

  • Background
  • Air Quality Analysis Workgroup Activities
  • Overview of Regional Ozone and Transport in the Eastern United States

    2. Integrated Summary of Workgroup Analyses

  • Spatial and Temporal Pattern of Ozone in the OTAG Domain
  • Transport Analyses
  • Development of Control Strategies
  • Impact of an 8-Hour Ozone Standard
  • Representativeness of OTAG Episodes
  • OTAG Model Evaluation
  • Ozone Implementation
  • Isoprene
  • Other Precursors
  • Chemistry

    3. Recommendations for Additional Analyses

    4. References

    Part III: Summaries of Individual AQA Workgroup Analyses

    1. Summaries of Individual AQA Workgroup Analyses

  • Spatial Pattern of Daily Maximum Ozone Over the OTAG Region
  • Pattern of 8-Hour Daily Maximum Ozone Over the OTAG Domain
  • Weekly Pattern of Ozone Over the OTAG Region
  • Spectral Decomposition of Ozone Time Series
  • Ozone Exceedances Data Analysis: Representativeness of 1995
  • Ozone Measurement Trends Studies in the Northeast
  • SOS Nashville/Middle Tennessee Ozone Study
  • Air Trajectory Analysis of Long-Term Ozone Climatology
  • Source Regions of Influence for High- and Low-Ozone Conditions in the Eastern U.S.
  • Ozone/Tracer/NOy Relationships at Three SOS/SCION Sites
  • Analysis of Ozone, NOy, and Tracer Data From a Site in South-Central Pennsylvania
  • A Comparison of Modeled and Measured Ozone, NOy, and CO at Nine Regional Monitoring Stations During the 1995 OTAG Episode
  • Ambient Monitoring Sites for OTAG (Time Series) Model Evaluation
  • Comparison of OTAG UAM-V/BEIS2 Modeling Results With Ambient Isoprene Observations
  • Comparison of SOS Nashville Data to OTAG 1995 Base Model

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