Dr. Alan Ducatman, a West Virginia University researcher who has studied C8, said the new paper has several limitations, including its focus on a small sample of children.
Grandjean examined C8 impacts on kids in the Faeroe Islands, a fishing community in the Norwegian Sea. The area's marine food diet is associated with intake of C8 and other perfluorinated compounds, or PFCs, and the government-run health-care system there provides a wealth of detailed data making such studies easier to conduct.
But Ducatman also said the new paper adds to previous research that drew similar conclusions about the potential problems with the EPA's C8 advisories.
"This exposure model adds formality to possible implications for water regulations," Ducatman said last week.