Human Health Risk Assessment - Raytheon

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DRAFT Table A-8. Dose and Risk Calculations for Potential Exposures to COPCs via Incidental Ingestion of Soil Onsite Utility Worker - Raytheon Facility - St. Petersburg, FL CSFo RfDo Cs ADD LADD Hazard Excess Cancer COPC (mg/kg-day)-1 (mg/kg-day) (mg/kg) (mg/kg-day) (mg/kg-day) Quotient Risk Carcinogens benzene 5.5E-02 1.16E+00 4.4E-08 6.3E-09 3.E-10 chloroethane 2.9E-03 5.04E-01 1.9E-08 2.7E-09 8.E-12 chloroform NA 8.30E+01 3.2E-06 4.5E-07 1,2-dichloroethane 9.1E-02 1.53E+00 5.8E-08 8.3E-09 8.E-10 1,2-dichloropropane 6.8E-02 1.08E-01 4.1E-09 5.9E-10 4.E-11 1,4-dioxane 1.1E-02 7.71E+01 2.9E-06 4.2E-07 5.E-09 methylene chloride 7.5E-03 3.18E+01 1.2E-06 1.7E-07 1.E-09 tetrachloroethene 5.2E-02 1.38E-01 5.2E-09 7.5E-10 4.E-11 1,1,2-trichloroethane 5.7E-02 9.64E-02 3.7E-09 5.2E-10 3.E-11 trichloroethene 1.1E-02 2.85E+02 1.1E-05 1.5E-06 2.E-08 vinyl chloride NonCarcinogens 7.2E-01 1.32E+01 5.0E-07 7.2E-08 5.E-08 acetone 9.0E-01 1.38E+01 5.2E-07 6.E-07 benzene 4.0E-03 1.16E+00 4.4E-08 1.E-05 carbon disulfide 1.0E-01 7.68E-01 2.9E-08 3.E-07 chloroethane 4.0E-01 5.04E-01 1.9E-08 5.E-08 chloroform 1.0E-02 8.30E+01 3.2E-06 3.E-04 1,1-dichloroethane 1.0E-01 2.00E+01 7.6E-07 8.E-06 1,2-dichloroethane 3.0E-02 1.53E+00 5.8E-08 2.E-06 1,1-dichloroethene 5.0E-02 5.14E+01 2.0E-06 4.E-05 cis-1,2-dichloroethene 1.0E-02 7.15E+01 2.7E-06 3.E-04 trans-1,2-dichloroethene 2.0E-02 2.22E-01 8.4E-09 4.E-07 1,2-dichloropropane 1.1E-03 1.08E-01 4.1E-09 4.E-06 1,4-dioxane NA 7.71E+01 2.9E-06 ethylbenzene 1.0E-01 1.51E+00 5.7E-08 6.E-07 isopropylbenzene 1.0E-01 1.17E-01 4.5E-09 4.E-08 methyl ethyl ketone 6.0E-01 1.17E+01 4.5E-07 7.E-07 methyl isobutyl ketone 8.0E-02 2.05E+01 7.8E-07 1.E-05 methylene chloride 6.0E-02 3.18E+01 1.2E-06 2.E-05 4-methylphenol 5.0E-03 5.30E-03 2.0E-10 4.E-08 phenol 3.0E-01 4.44E-03 1.7E-10 6.E-10 tetrachloroethene 1.0E-02 1.38E-01 5.2E-09 5.E-07 toluene 8.0E-02 4.74E+01 1.8E-06 2.E-05 1,1,1-trichloroethane 2.8E-01 2.95E+01 1.1E-06 4.E-06 1,1,2-trichloroethane 4.0E-03 9.64E-02 3.7E-09 9.E-07 trichloroethene 6.0E-03 2.85E+02 1.1E-05 2.E-03 1,2,4-trimethylbenzene 5.0E-02 1.15E+00 4.4E-08 9.E-07 1,3,5-trimethylbenzene 5.0E-02 4.73E-01 1.8E-08 4.E-07 xylenes 2.0E-01 7.93E+00 3.0E-07 2.E-06 vinyl chloride 3.0E-03 1.32E+01 5.0E-07 2.E-04 Totals 3.E-03 8.E-08 ADD = C s × IR s × EF × ED BW × AT LADD = ADD × ED 70 ENVIRON Page 1 of 1 Worker Cw Soil Conc. chemical -specific mg/kg Irs Soil Ingestion Rate 0.00033 kg/day EF Exposure Frequency 8 days/year ED Exposure Duration 10 year BW Body weight 76.1 kg AT Averaging Time 9,125 days Human Health Risk Assessment
DRAFT Table A-9. Dose and Risk Calculations for Potential Exposures to COPCs via Inhalation of Outdoor Air During Subsurfcae Excavation Activities - Onsite Utility Worker - Raytheon Facility - St. Petersburg, FL CSFi RfDi C oa ADD LADD Hazard Excess Cancer COPC (mg/kg-day)-1 (mg/kg-day) (mg/m 3 ) (mg/kg-day) (mg/kg-day) Quotient Risk Carcinogens benzene 2.7E-02 2.84E-06 9.8E-10 1.4E-10 4.E-12 chloroethane 2.9E-03 6.71E-04 2.3E-07 3.3E-08 1.E-10 chloroform 8.1E-02 8.81E-03 3.0E-06 4.3E-07 4.E-08 1,2-dichloroethane 9.1E-02 0.00E+00 0.0E+00 0.0E+00 0.E+00 1,2-dichloropropane 6.8E-02 4.94E-04 1.7E-07 2.4E-08 2.E-09 1,4-dioxane 1.1E-02 7.40E-05 2.6E-08 3.7E-09 4.E-11 methylene chloride 1.6E-03 1.13E-04 3.9E-08 5.6E-09 9.E-12 tetrachloroethene 2.0E-03 2.29E-04 7.9E-08 1.1E-08 2.E-11 1,1,2-trichloroethane 5.6E-02 4.01E-04 1.4E-07 2.0E-08 1.E-09 trichloroethene 6.0E-03 2.58E-03 8.9E-07 1.3E-07 8.E-10 vinyl chloride 1.5E-02 7.02E-03 2.4E-06 3.5E-07 5.E-09 NonCarcinogens acetone 9.0E-01 2.67E-03 9.2E-07 1.E-06 benzene 8.6E-03 2.84E-06 9.8E-10 1.E-07 carbon disulfide 2.0E-01 5.43E-05 1.9E-08 9.E-08 chloroethane 2.9E+00 6.71E-04 2.3E-07 8.E-08 chloroform 1.4E-02 8.81E-03 3.0E-06 2.E-04 1,1-dichloroethane 1.4E-01 8.05E-03 2.8E-06 2.E-05 1,2-dichloroethane 3.0E-02 0.00E+00 0.0E+00 0.E+00 1,1-dichloroethene 5.7E-02 8.02E-03 2.8E-06 5.E-05 cis-1,2-dichloroethene 1.0E-02 4.41E-03 1.5E-06 2.E-04 trans-1,2-dichloroethene 2.0E-02 4.19E-04 1.4E-07 7.E-06 1,2-dichloropropane 1.1E-03 4.94E-04 1.7E-07 1.E-04 1,4-dioxane NA 7.40E-05 2.6E-08 ethylbenzene 2.9E-01 1.12E-03 3.9E-07 1.E-06 isopropylbenzene 1.1E-01 1.30E-04 4.5E-08 4.E-07 methyl ethyl ketone 1.4E+00 0.00E+00 0.0E+00 0.E+00 methyl isobutyl ketone 8.6E-01 0.00E+00 0.0E+00 0.E+00 methylene chloride 8.6E-01 1.13E-04 3.9E-08 5.E-08 4-methylphenol 3.7E-03 1.20E-06 4.2E-10 1.E-07 phenol 3.0E-01 9.87E-07 3.4E-10 1.E-09 tetrachloroethene 1.4E-01 2.29E-04 7.9E-08 6.E-07 toluene 1.4E+00 1.44E-02 5.0E-06 3.E-06 1,1,1-trichloroethane 2.9E-01 1.53E-02 5.3E-06 2.E-05 1,1,2-trichloroethane 3.2E-03 4.01E-04 1.4E-07 4.E-05 trichloroethene 5.7E-03 2.58E-03 8.9E-07 2.E-04 1,2,4-trimethylbenzene 1.7E-03 8.36E-05 2.9E-08 2.E-05 1,3,5-trimethylbenzene 1.7E-03 1.51E-04 5.2E-08 3.E-05 xylenes 2.9E-02 5.28E-03 1.8E-06 6.E-05 vinyl chloride 2.9E-02 7.02E-03 2.4E-06 8.E-05 Totals 1.E-03 4.E-08 ADD = C oa × IR i × ET × EF × ED BW × AT LADD = ADD × ED 70 ENVIRON Page 1 of 1 Worker Coa Outdoor Air Concentration chem-specific mg/m 3 Iri Inhalation Rate 1.5 m 3 /hr ET Exposure Time 2 hr/day EF Exposure Frequency 8 days/year ED Exposure Duration 10 year BW Body weight 76.1 kg AT Averaging Time 9,125 days Human Health Risk Assessment
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DRAFT Human Health Risk Assessment
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ii Human Health Risk Assessment DRA
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Executive Summary 1 Human Health Ri
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3 Human Health Risk Assessment DRAF
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2 Conceptual Site Model 7 Human Hea
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11 Human Health Risk Assessment DRA
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3.2.3 Ambient Air Sampling 15 Human
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• Inhalation of Outdoor Air On-Si
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u = Wind speed (m/s) 23 Human Healt
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EPCa = Exposure point concentration
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where: DAD = Dermal absorbed dose (
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33 Human Health Risk Assessment san
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Page 41 and 42: non-carcinogenic effects (µg/L) Ri
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Page 53 and 54: Potential Risks to On-Site Construc
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Page 59 and 60: 7 Uncertainty Analysis 55 Human Hea
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Page 79 and 80: Human Health Risk Assessment DRAFT
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