“…Various congeners and mixtures of PCBs, PCDFs, and PCDDs possess a spectrum of estrogenic, antiestrogenic, and antiandrogenic effects (27,(34)(35)(36)(37)(38). Soil, dust, and air near the contaminated sites contained both estrogenic and antiestrogenic PCBs and PCDFs, but antiestrogenicity dominates the net effect of the PCB/PCDF mixtures at these sites (28,36).…”