Table 8.

Standard Values for Calculating Exposure Assessment of Trace Metals in Surface Water Samples28–30

Element	Cr	As	Cd
RfDing	3.00×10−3	3.00×10−4	5.00×10−4
RfDderm	7.50×10−5	8.00×10−4	2.50×10−4
Pristine sites
ADDing	1.29×10−3	2.28×10−4	2.86×10−4
ADDderm	3.61×10−5	6.40×10−6	8.00×10−6
CDI	1.29×10−3	2.29×10−4	2.86×10−4
CRing	2.57×10−4	1.52×10−4	4.68×10−7
CRderm	7.20×10−8	4.27×10−6	1.31×10−8
HQing	0.43	0.76	0.71
HQderm	0.48	0.01	0.03
Mining sites
ADDing	7.71×10−4	2.29×10−4	3.14×10−4
ADDderm	2.16×10−5	6.40×10−6	8.80×10−6
CDI	7.71×10−4	2.29×10−4	3.14×10−4
CRing	1.50×10−6	1.52×10−4	5.15×10−7
CRderm	4.80×10−8	4.27×10−6	1.44×10−8
HQing	0.26	0.76	0.63
HQderm	0.29	0.01	0.04