“…Thus, humans are primarily exposed to PCBs via diet, although inhalation is becoming an increasingly important route of exposure, particularly to the lower chlorinated congeners (Ampleman et al, 2015;Carpenter, 2006;Chan-Hon-Tong, Charles, Forhan, Heude, & Sirot, 2013;Durand et al, 2008). In addition, PCBs cross the placenta and are present in breastmilk (Foerster et al, 2021;Kim et al, 2018). The National Health and Nutrition Examination Survey (NHANES) has documented widespread PCB exposure in women of childbearing age in the U.S. (Thompson & Boekelheide, 2013).…”