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Human Health Risk Assessment - Raytheon

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DRAFT<br />

Table A-8. Dose and <strong>Risk</strong> Calculations for Potential Exposures to COPCs via Incidental Ingestion of Soil<br />

Onsite Utility Worker - <strong>Raytheon</strong> Facility - St. Petersburg, FL<br />

CSFo RfDo Cs ADD LADD Hazard<br />

Excess<br />

Cancer<br />

COPC (mg/kg-day)-1 (mg/kg-day) (mg/kg) (mg/kg-day) (mg/kg-day) Quotient <strong>Risk</strong><br />

Carcinogens<br />

benzene 5.5E-02 1.16E+00 4.4E-08 6.3E-09 3.E-10<br />

chloroethane 2.9E-03 5.04E-01 1.9E-08 2.7E-09 8.E-12<br />

chloroform NA 8.30E+01 3.2E-06 4.5E-07<br />

1,2-dichloroethane 9.1E-02 1.53E+00 5.8E-08 8.3E-09 8.E-10<br />

1,2-dichloropropane 6.8E-02 1.08E-01 4.1E-09 5.9E-10 4.E-11<br />

1,4-dioxane 1.1E-02 7.71E+01 2.9E-06 4.2E-07 5.E-09<br />

methylene chloride 7.5E-03 3.18E+01 1.2E-06 1.7E-07 1.E-09<br />

tetrachloroethene 5.2E-02 1.38E-01 5.2E-09 7.5E-10 4.E-11<br />

1,1,2-trichloroethane 5.7E-02 9.64E-02 3.7E-09 5.2E-10 3.E-11<br />

trichloroethene 1.1E-02 2.85E+02 1.1E-05 1.5E-06 2.E-08<br />

vinyl chloride<br />

NonCarcinogens<br />

7.2E-01 1.32E+01 5.0E-07 7.2E-08 5.E-08<br />

acetone 9.0E-01 1.38E+01 5.2E-07 6.E-07<br />

benzene 4.0E-03 1.16E+00 4.4E-08 1.E-05<br />

carbon disulfide 1.0E-01 7.68E-01 2.9E-08 3.E-07<br />

chloroethane 4.0E-01 5.04E-01 1.9E-08 5.E-08<br />

chloroform 1.0E-02 8.30E+01 3.2E-06 3.E-04<br />

1,1-dichloroethane 1.0E-01 2.00E+01 7.6E-07 8.E-06<br />

1,2-dichloroethane 3.0E-02 1.53E+00 5.8E-08 2.E-06<br />

1,1-dichloroethene 5.0E-02 5.14E+01 2.0E-06 4.E-05<br />

cis-1,2-dichloroethene 1.0E-02 7.15E+01 2.7E-06 3.E-04<br />

trans-1,2-dichloroethene 2.0E-02 2.22E-01 8.4E-09 4.E-07<br />

1,2-dichloropropane 1.1E-03 1.08E-01 4.1E-09 4.E-06<br />

1,4-dioxane NA 7.71E+01 2.9E-06<br />

ethylbenzene 1.0E-01 1.51E+00 5.7E-08 6.E-07<br />

isopropylbenzene 1.0E-01 1.17E-01 4.5E-09 4.E-08<br />

methyl ethyl ketone 6.0E-01 1.17E+01 4.5E-07 7.E-07<br />

methyl isobutyl ketone 8.0E-02 2.05E+01 7.8E-07 1.E-05<br />

methylene chloride 6.0E-02 3.18E+01 1.2E-06 2.E-05<br />

4-methylphenol 5.0E-03 5.30E-03 2.0E-10 4.E-08<br />

phenol 3.0E-01 4.44E-03 1.7E-10 6.E-10<br />

tetrachloroethene 1.0E-02 1.38E-01 5.2E-09 5.E-07<br />

toluene 8.0E-02 4.74E+01 1.8E-06 2.E-05<br />

1,1,1-trichloroethane 2.8E-01 2.95E+01 1.1E-06 4.E-06<br />

1,1,2-trichloroethane 4.0E-03 9.64E-02 3.7E-09 9.E-07<br />

trichloroethene 6.0E-03 2.85E+02 1.1E-05 2.E-03<br />

1,2,4-trimethylbenzene 5.0E-02 1.15E+00 4.4E-08 9.E-07<br />

1,3,5-trimethylbenzene 5.0E-02 4.73E-01 1.8E-08 4.E-07<br />

xylenes 2.0E-01 7.93E+00 3.0E-07 2.E-06<br />

vinyl chloride 3.0E-03 1.32E+01 5.0E-07 2.E-04<br />

Totals 3.E-03 8.E-08<br />

ADD =<br />

C s × IR s × EF × ED<br />

BW × AT<br />

LADD =<br />

ADD × ED<br />

70<br />

ENVIRON Page 1 of 1<br />

Worker<br />

Cw Soil Conc. chemical -specific mg/kg<br />

Irs Soil Ingestion Rate 0.00033 kg/day<br />

EF Exposure Frequency 8 days/year<br />

ED Exposure Duration 10 year<br />

BW Body weight 76.1 kg<br />

AT Averaging Time 9,125 days<br />

<strong>Human</strong> <strong>Health</strong> <strong>Risk</strong> <strong>Assessment</strong>

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