Table 2.

Oral and Dermal Reference dose (Rfd) for no-carcinogenic and cancer slope factor (CSF).

Metal	Oral Rfd	Dermal Rfd	CSF oral	CSF dermal
Pb	${0.0035}^{(c)}$	${0.0005}^{(a)}$	${0.0085}^{(a)}$	-
Cd	${0.001}^{(c)}$	${0.00005}^{(c)}$	${0.38}^{(b)}$	-
As	${0.0003}^{(c)}$	${0.00012}^{(c)}$	${1.5}^{(a)}$	${1.5}^{(a)}$

$(a)$ = RAIS (2013) Risk assessment information system.

$(b)$ = Walkes and Rehm (1994).

$(c)$ = AERIS Software Inc., 1991.