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DEQ report finds elevated 1,4‑dioxane exposure in Cape Fear basin; SAB to review scientific defensibility
Summary
DEQ presented a legislatively directed human health risk assessment for 1,4‑dioxane showing higher concentrations in the Cape Fear River Basin and concluded North Carolina exposures may be up to twice the national drinking‑water average; the Science Advisory Board agreed to review the report’s methods and findings and to provide formal feedback.
The Department of Environmental Quality presented a human health cancer risk assessment for 1,4‑dioxane that it prepared under legislative direction. DEQ outlined an exposure assessment indicating most elevated environmental occurrences and higher drinking‑water concentrations are concentrated in the Cape Fear River Basin. The report used EPA IRIS hazard values and concluded that, based on available data, North Carolinians in affected areas experienced roughly half the protection the rest of the nation had…
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