Parameters

Meaning

Units

Values

Sources

children

Adults

I.R.

Daily water ingestion rate

l∙d−1

1.5

2

(ASTEE, 2003)

ET

Exposure time

h∙d−1

1

0.58

(USEPA, 2004)

E.F.

Exposure frequency

d∙year−1

350

350

E.D.

Exposure duration

year

6

30

BW

Body weight

kg

28

70

AT

Average exposure time

d

2190

10,950

SA

Skin area

cm2

6600

18,000

Kp

Dermal permeability coefficient

cm∙h−1

10−4 (Pb) and

10−3 (Hg, Cd and As)

Fc

Conversion factor

l∙cm−3

10−3