5.9 Milk

5.9 MILK

This exposure pathway involves contamination of cow milk by feeding the cows contaminated crops and/or water. Default parameter values for the milk ingestion pathway are given in Table 5.9.

TABLE 5.8 Meat Ingestion Parameter Default Values

Parameter	Definition	Units	Individual	Population
P	areal soil density	kg/m²	240	240
Q_ft	animal feed rate	kg/d	68	68
Q_wt	animal water rate	L/d	50	50
r_ft	retention fraction	--^(a)	0.25	0.25
TC_ft>	growing period	d	60	60
TH_ft	holdup time	d	20.	20
TV_ft	translocation factor	--	0.1	0.1
F_mt	intake time fraction	--	1.0	1.0
U_mt	meat consumption rate	kg/d	0.065	0.065
Y_ft	crop yield	kg/m²	0.7	0.7
FI_mt	irrigation time fraction	--	1.0	1.0
l_w	weathering constant	d^-1	0.0495	0.0495
(a) Dash indicates not applicable.

TABLE 5.9 Milk Ingestion Parameter Default Values

			Default Value
Parameter	Definition	Units	Individual	Population
P	areal soil density	kg/m²	240	240
Q_fk	animal feed rate	kg/d	55	55
Q_wk	animal water rate	L/d	60	60
r_fk	retention fraction	--^(a)	0.25	0.25
TC_fk	growing period	d	30	30
TH_fk	holdup time	d	4	4
TV_fk	intake translocation factor	--	1.0	1.0
F_mk	intake time fraction	--	1.0	1.0
U_mk	milk consumption rate	kg/d	0.075	0.075
Y_fk	crop yield	kg/m²	0.7	0.7
l_w	weathering constant	d^-1	0.0495	0.0495
FI_mk	irrigation time fraction	--	1.0	1.0
(a) Dash indicates not applicable.