Lead Human Exposure and Health Risk Assessments for Selected ...

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EPA-452/D-07-001a July 2007 Lead Human Exposure and Health Risk Assessments for Selected Case Studies (Draft Report) Volume I. Human Exposure and Health Risk Assessments - Full-scale U.S. Environmental Protection Agency Office of Air Quality Planning and Standards Research Triangle Park, North Carolina
Page 1: Lead Human Exposure and Health Risk
Page 5 and 6: PREFACE This document is part of th
Page 7 and 8: Table of Contents List of Tables ..
Page 9 and 10: 3.2.2.2 Point Source Case Studies .
Page 11 and 12: Table 3-16. Primary Pb smelter case
Page 13 and 14: 1 1 INTRODUCTION 2 This document is
Page 15 and 16: 1 Policy-relevant Policy-relevant S
Page 17 and 18: 1 The primary difference between th
Page 19 and 20: 1 selected to overlap with the rang
Page 21 and 22: 1 2 DESIGN OF EXPOSURE AND RISK ASS
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Page 33 and 34: 1 2.1.5 Risk Metric and Model for R
Page 35 and 36: 1 with cutpoint) also applies the n
Page 37 and 38: 1 sources are included in the prima
Page 39 and 40: 1 complicates the modeling of Pb tr
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Page 43 and 44: 1 role of this value for Pb is limi
Page 45 and 46: 1 not been addressed in this assess
Page 47 and 48: 1 recent versus past air. 12 The pa
Page 49 and 50: 1 2 Figure 2-2. Overview of analysi
Page 51 and 52: 1 empirical-mechanistic model was d
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1 • variability in the concentrat
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1 the two point source case studies
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1 2 REFERENCES 3 4 5 Basha, M.R., W
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1 3 EXPOSURE ASSESSMENT 2 This chap
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
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1 3.1.1.3 Secondary Pb Smelter Case
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
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1 loadings (USEPA, 1995) was identi
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1 • Statistical (regression) mode
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
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1 the exposure distribution. Instea
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1 Figure 3-1. Procedure for generat
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1 NHANES IV (CDC, 2005). Here, the
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1 2 3 Table 3-4. Estimated inhalati
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1 similar for both the concurrent a
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1 Table 3-7. General urban case stu
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1 Table 3-11. General urban case st
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1 Table 3-13. Primary Pb smelter ca
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1 Table 3-21. Secondary Pb smelter
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
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1 indoor dust Pb. The conversion fo
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1 of the GSD, these would be less r
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
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1 4 RISK ASSESSMENT 5 10 15 20 25 3
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1 Table 4-2. Summary of risk estima
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1 Table 4-3. Summary of risk estima
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1 2 Table 4-10. Primary Pb smelter
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1 Table 4-12. Primary Pb smelter st
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1 presumably an upward bias in risk
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 Th
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United States Office of Air Quality
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