Standardized boxplot distributions of log transformed maternal serum concentrations for the 16 endocrine disrupting chemicals (EDCs) measured during 1st trimester for our cohort. Standardized concentrations provide a sense of relative variability across chemicals measured on different scales. Abbreviations: OCPs, organochlorine pesticides; HCB, hexachlorobenzene; oxychlordane; trans-Nonachlor, p,p-DDE, dichlorodiphenyldichloroethane; (P)BDE, (poly)brominated diphenyl ether; PCBs, polychlorinated biphenols; PFASs, poly- and perfluoroalkyl substances; PFOA, perfluorooctanoate; PFOS, perfluorooctane sulfonate (Format: color).