Contents and Executive
Summary |
ES-1 |
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Fixed Site (Regional) Program |
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A. Monitoring |
ES-3 |
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B. Modeling
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ES-5 |
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Microscale Program |
ES-6 |
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Caveats and Risk Uncertainty |
ES-7 |
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Chapters |
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1. Introduction |
1-1 |
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2. Historical
Trends in Toxic Air Contaminants and
Associated Cancer Risks in the
South Coast Air
Basin and Vicinity |
2-1
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2.1 Summarized Highlights
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2-1 |
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2.2 Discussion |
2-1 |
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3. MATES
II Monitoring Program |
3-1 |
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3.1 Site Location and Monitoring |
3-1 |
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3.2 Findings |
3-2 |
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3.2.1 Intersite Comparisons, Concentrations |
3-4 |
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3.2.2 Cancer Risk – Uncertainty in Risk
Assessment |
3-5 |
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3.2.3 Intersite Comparison Cancer Risk |
3-6 |
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3.2.4 Seasonal Variability |
3-13 |
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3.2.5 Species and Source Apportionment |
3-20 |
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4. Emission
Inventory Development |
4-1 |
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4.1 On-Road Mobile Sources |
4-1 |
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4.2 Stationary Point Sources |
4-1 |
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4.3 Area and Off-Road Sources |
4-2 |
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4.4 Summary of Toxic Emissions |
4-3 |
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5. Regional
Model Evaluation |
5-1 |
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5.1 3-Dimensional Simulation Models Evaluated |
5-1 |
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5.2 Toxic Compounds Modeled and Model
Performance Goals |
5-1 |
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5.3 Model-Estimated Spatial Concentration
Fields |
5-4 |
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5.4 Risk Assessment Calculations |
5-4 |
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5.5 Conclusion |
5-9 |
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6. Microscale
Study |
6-1 |
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6.1 Introduction |
6-1 |
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6.2 Site Selection Process |
6-1 |
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6.3 Analytical Approach |
6-4 |
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6.4 Monitoring Results and Findings |
6-4 |
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6.4.1 Microscale-Fixed Site Comparisons |
6-5 |
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6.4.2 Mobile/Stationary Source Influences |
6-11 |
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6.5 Emissions Inventory |
6-14 |
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6.6 Local-Scale Modeling |
6-17 |
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7. Findings
and Conclusions |
7-1 |
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7.1 Monitoring Program |
7-1 |
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7.2 Modeling |
7-2 |
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7.3 Microscale Program |
7-2 |
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7.4 Caveats and Uncertainties |
7-4 |
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8. References |
8-1 |
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9. Response to Comments |
9-1 |
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Appendices |
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Cover; Governing Board; Contributors; List
of Appendices |
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I-A
List of Toxic Compounds and Their
Associated
Unit Risk Factors (URF) |
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I-B
List of Air Toxic Study Technical Review
Group (ATSTRG)
Members |
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II
Historical Trends in Toxic Air Contaminants
and Cancer
Risk in the South Coast
Air Basin |
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III-A Protocol,
Environmental
Justice Initiative Number 2,
Monitoring and
Laboratory Analysis |
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III-B Statistical
Summary for the MATES-II
Fixed Monitoring
Sites |
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IV
1998 Emissions by Major Category |
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V
Air Toxic Regional Modeling |
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VI
Details of Microscale Study |
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Location of Sites |
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Wind Roses |
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Emissions |
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Microscale-Fixed Site Comparisons |
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Modeling Results |
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