PETITIONED PUBLIC HEALTH ASSESSMENT
NEWTOWN COMMUNITY
GAINESVILLE, HALL COUNTY, GEORGIA
November 19, 2002
Prepared by:
Petition Response Section
Exposure Investigation and Consultation Branch
Division of Health Assessment and Consultation Branch
Agency for Toxic Substances and Disease Registry
TABLE OF CONTENTS
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Section 1:
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General information regarding ambient air and health
Contaminants in air
Potential sources of air pollution How did ATSDR evaluate air quality in Newtown? Addressing previous recommendations and ATSDR Comparison Values (CVs)
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Air pollutant release data
The Aerometric Retrieval System and Facility Subsystem (AIRS/AFS)
Toxic Release Inventory database
Air permit and compliance files from Georgia Department of Natural Resources
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Air models used in the ATSDR evaluation of air quality in Newtown
ATSDR's air dispersion model
EPA's Cumulative Exposure Project
EPA's National Air Toxic Assessment
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Measured results and their comparison to models
Priority pollutants
Particulate matter
Comparison of modeled with measured results
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Appendix A. Area maps
Appendix B. Demographics
Appendix C. Aerometric Information Retrieval System and Toxicology Resource Index Data Information, Hall County, Gainesville, Georgia
Appendix D. ATSDR Dispersion Model
Appendix E. Environmental Protection Agency's Cumulative Exposure Project (Nationwide Modeling)
Appendix F. Environmental Protection Agency National Air Toxic Assessment (Nationwide Modeling)
Appendix G. Explanation of the Differences Between and Limitations of Modeling Data and Monitoring Data
Appendix H. Explanation of Cancer and Noncancer Risk Conversions
Appendix I. Ambient Air Data, as Measured by the Georgia Environmental Protection Division
Appendix J. Public Comments
