Table 2 Reference dose (RfD) and slope factor (SF) values of heavy metal(loid)s in soil by different exposure pathways used in health-risk assessment with Monte Carlo simulation.
From: Human health-risk assessment of heavy metal–contaminated soil based on Monte Carlo simulation
HM | RfD (mg/(kg d)) | SF ((kg d)/mg) | ||
|---|---|---|---|---|
Ingestion | Dermal | Ingestion | Dermal | |
Zn | 0.3a | 6.0E-02a | – | – |
Cu | 4.0E-02a | 1.2E-02a | – | – |
Cr | 3.0E-3a | 6.0E-05a | 0.5a | 20a |
Pb | 3.50E-03a | 5.25E-04a | 8.5E-03b | – |
Hg | 3.0E-04a | 2.1E-05a | – | – |
