Table 3.
Factors utilized for exposure assessment that are independent of chemicals considered.
| Factor | Amount | Source |
|---|---|---|
| All Pathways | ||
| Body Weight, BW (kg) | 25.4 | [42] |
| Frequency of Exposure, F (days/year) | 12 | Assumption |
| Exposure Duration, ED (years) | 8 | Assumption |
| Averaging Time, AT (days) | 365 (for non-cancer) 28,489 (for cancer) |
[42] |
| Exposure Factor, EF (unitless) | 0.263 (for non-cancer) 0.002948 (for cancer) |
Calculation |
| Oral | ||
| Soil Intake Rate, IRs(mg/day) | 1000 | [42] |
| Conversion Factor, CF (mg /kg) | 0.000001 | Calculation |
| Dermal | ||
| Skin Surface Area, SA (cm2/event) | 11,350 | [42] |
| Adherence Factor, AD (mg/cm2) | 18 | [31] |
| Conversion Factor. CD (mg/kg) | 0.000001 | Calculation |
| Inhalation | ||
| Soil-to-Air Particulate Emission Factor, PEF (m3/kg) | 1,240,000,000 | [31] |
| Inhalation Rate, IRa (m3/day) | 9.62 | [42] |
| Exposure Time, ET (hours/day) | 3 | Assumption |