Table 1.

Exposure estimates: parameters and default values.

Abbreviation	Parameter	Default valuea
M	Mass per cup	Determined by chemical analysis
F	Frequency of use	2 cups/day (1 cup for 12 h, 2 cups/day)
E	Exposure duration	100% (default to everyday use although exposure is only 5–7 days/month during menstruation)
T	Transfer to mucosal tissue	100%
Ab	Mucosal absorption	100%
Bw	Body weight	50 kg
SA	Surface area	70 cm2

^aDefault values can be refined with chemical specific and/or analytical data.