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Page Title:
Ingestion of Chemicals in Drinking Water |
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 Ingestion of Chemicals in Drinking Water
EPCW IR EF ED
Intake(mg / kg - day) =
(E1)
BW AT
where
EPCw = Chemical concentration in water (mg/liter)
IR
= Ingestion rate (liters/day)
EF
= Exposure frequency (days/year)
ED
= Exposure duration (years)
BW
= Body weight (kg)
AT
= Averaging time (period over which exposure is averaged: days)
Incidental Ingestion of Chemicals in Surface Water
While Swimming
EPCW CR ET EF ED
Intake(mg / kg - day) =
(E2)
BW AT
where
EPCw = Chemical concentration in water (mg/liter)
CR
= Contact rate (liters/hour)
ET
= Exposure time (hours/event)
EF
= Exposure frequency (events/year)
ED
= Exposure duration (years)
BW
= Body weight (kg)
AT
= Averaging time (period over which exposure is averaged: days)
E2
Appendix E Human Exposure Equations
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