Tittabawassee River Ecological Risk Assessment
Dioxin/furan toxicity – overview
Intrinsic toxicity - thresholds in biological tissues can be in low ppt (e.g., ? pg/g, wet weight in chicken eggs – embryo mortality)
Environmentally persistent
Lipophilic, bioaccumulate and biomagnify in food chains
Pose risks to top predators (especially early life-stages)