Figure: 30 TAC §350.76(c)(3)
| Equation for Adult Lead Exposure Commercial/Industrial Land Use (Tier 1) |
| SoilSoilIng=SoilRBELIng |
 |
| Parameter |
Definition (units) |
Default
|
| PbB95 fetal |
95th Percentile PbB in Fetus (µg/dL) |
10 |
| R |
Mean Ratio of Fetal to Maternal PbB |
0.9 |
| GSDi |
Individual Geometric Standard Deviation |
1.91 |
| PbB0 |
Baseline Blood Lead Value (µg/dL) |
1.64 |
| BKSF |
Biokinetic Slope Factor (µg/dL per µg/day) |
0.4 |
| IRsd |
Soil/Dust Ingestion Rate (g/day) |
0.05 |
| EFsd |
Soil/Dust Exposure Frequency (days/yr) |
250 |
| AFsd |
Absolute Absorption Fraction of Lead in Soil/Dust |
0.10 |