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SECTIONIF®UR Eausure Assessmona <br /> G =concentration of chemicals m soil(mg/kg) <br /> SA =skin surface area exposed to soil per day(cmZ/day) <br /> AF =soil-to-slan adherence factor(mg/cm.) <br /> ABS =the fraction of chemical that is absorbed(dimensionless) <br /> EF =exposure frequency(days/year) <br /> ED =exposure duration(years) <br /> BW =body weight(kg) <br /> AT =averaging tune(days) <br /> 10'6 =conversion factor from(kg to mg) <br /> The dermal absorbed dose estimates the amount of the absorbed dose, not the amount of chenncal in <br /> contact with the skin The 95%UCL soil concentrations for surface soil listed on Table 3-1 were used <br /> for the concentration C, Details on intake factors for the occupational receptors are provide in Section <br /> 45 <br /> 4.4.3.4 Sol/Ingestion <br /> Exposure of occupational receptors to chemicals of potential concern via incidental ingestion of soil <br /> was estimated using the following vanables (1) the rate of ingestion, (2) the fraction of ingested soil <br /> that is contaminated, and (3)the frequency and duration of exposure <br /> Adults working outdoors may ingest soil through incidental contact of the mouth with hands and <br /> clothing Daily intake of contaminants in soil through this route is estimated as follow <br /> DI= 10-6C,IR FI EF EDIBW AT <br /> where <br />' DI =daily intake of chemical due to ingestion of soil(mg/kg/day) <br /> C, =concentration of chemicals in contaminated soil(mg/kg) <br /> IR =ingestion rate of contaminated soil(mg/day) <br /> FI =the fraction of total ingested soil that is contaminated (dimensionless) <br /> EF =exposure frequency(days/year) <br /> ED =exposure duration(years) <br /> BW =body weight(kg) <br /> AT =averaging time(days) <br /> I10-' =conversion factor from(kg to mg) <br /> WOMlMon&C"G ® T11987w3cwt4Aw=KTommPORrsFme m Doc13-FEs-ww7wwNAvsNA 4-13 <br />