Tittabawassee River Ecological Risk Assessment – Exposure Model

Sediment

PCDDs

PCDFs

Water

column

Benthos

Bottom-feeding

Fish

Piscivorous

Wildlife

• Mink

• Birds

Water Column

Fish

Biomagnification

Factors

(BMFs)

Biomagnification

Factors

(BMFs)

Toxicity Reference

Values (TRVs)

Plankton

Floodplain

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