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

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1 Table 4-18. Secondary Pb smelter case study: alternative NAAQS (0.2 µg/m 3 , maximum 2 monthly average) estimated IQ loss. 3 4 IQ Loss Percentile Population Above Predicted IQ Loss Predicted PbB (µg/dL) Diet Drinking Water Pathway Contribution Ingestion Indoor Dust Outdoor Soil/Dust Other a Recent Air Inhalation (Recent Air) Dust Model (Air+Soil Regression-based <strong>and</strong> H6), GSD (1.7), PbB Metric (Concurrent), IQ Function (Two-piece Linear) 99.9th 2 2 5 19% 11% 52% 15% 2%
1 Table 4-19. Secondary Pb smelter case study: alternative NAAQS (0.05 µg/m 3 , maximum 2 monthly average) estimated IQ loss. 3 4 IQ Loss Percentile Population Above Predicted IQ Loss Predicted PbB (µg/dL) Diet Drinking Water Pathway Contribution Ingestion Indoor Dust Outdoor Soil/Dust Other a Recent Air Inhalation (Recent Air) Dust Model (Air+Soil Regression-based <strong>and</strong> H6), GSD (1.7), PbB Metric (Concurrent), IQ Function (Two-piece Linear) 99.9th 2 2 5 42% 24% 1% 33%
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Lead Human Exposure and Health Risk
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DISCLAIMER This document has been r
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comment. A final version of this do
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2.4 ANALYTICAL APPROACH ...........
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List of Figures Figure 1-1. Princip
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Table 4-17. Secondary Pb smelter ca
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1 concentrations in water, soil and
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1 showing impaired neurobehavioral
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1 assessment, summarized in Section
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1 Figure 2-1. Conceptual model for
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1 and 3.1.1), the media concentrati
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1 Table 2-1. Key aspects of primary
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1 2.3 ASSESSMENT SCENARIOS 2 The de
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1 Table 2-3. Air quality scenarios
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1 southern California, where Pb has
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1 composed of U.S. Census blocks or
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1 Office Of Air Quality Planning an
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1 Table 3-1. Case study approaches
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1 0.37 to 0.46 for the Census tract
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1 contribution of air Pb both direc
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1 3.2.1.1 Primary Analysis 2 The IE
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1 represent indoor paint, outdoor s
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1 • GSD reflecting inter-individu
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1 concentrations. Consequently, the
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1 Table 3-6. Estimated indoor dust
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1 blood Pb per air quality scenario
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1 Table 3-8. General urban case stu
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1 Table 3-10. General urban case st
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Page 156 and 157: 1 2 3 4 5 6 7 8 9 10 11 REFERENCES
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