 |
||
|
|
||
|
Page Title:
Intake Calculation for the Consumption of Commercially Harvested Flounder |
||
| |||||||||||||||
|
|
 Therefore
0.02 H 0.3
FI
=
FI
=
0.006
In this case, the FI for the local metropolitan consumer of commercially
harvested flounder is 0.006. Six-tenths percent of the flounder consumed by these
receptors will be impacted by the dredge-management site. If there is reason to
believe that the disposal site is preferentially attractive to flounder, this
calculation will change accordingly.
Intake Calculation for the Consumption of
Commercially Harvested Flounder
The risk assessor will calculate a potential average daily dose of total PCBs
due to consumption of winter flounder exposed to the disposal site. The EPC
(concentration of total PCBs in the flounder from the area of the site) and FI
(fraction of the total catch from the area of the site) have been calculated
previously. Note that the EPC is generally expressed as ug/g, although in the
intake equation, it is necessary to convert that to mg/kg. The State Department of
Marine Fisheries has indicated, in this hypothetical example, that a flounder
ingestion rate of 0.11 kg per meal is a conservative estimate of flounder
consumption.
ADDpot (mg/kg/day) = EPC H Abs H IR H FI H EF H ED
BWavg H AT
where:
EPC
=
(3.3 ug/g) = 3.3 mg/kg
Abs
=
1
IR
=
0.11 kg/meal
FI
=
0.006
EF
=
52 meals/year
ED
=
9 years
BWavg =
70 kg
AT
=
70 years (365 days/year) = 25,550 days
ADDpot(mg/kg/day) = 3.3 mg/kg H 0.11 kg/meal H 0.006 H 52 meals/yr H 9 yrs
70 kg H 25,550 days
ADDpot = 5.6 H 10 -7 mg/kg/day
F13
Appendix F Hypothetical Example
|
|
Privacy Statement - Press Release - Copyright Information. - Contact Us - Support Integrated Publishing |
