What chemicals cause endocrine disruption?
Drugs have been specifically designed to treat hormone imbalance in humans. Diethylstilbesterol (DES), a drug with strong estrogenic properties administered to pregnant women until 1971 to prevent miscarriages, is a tragic example. Female children of mothers who took DES during pregnancy have a higher incidence of certain forms of ovarian and vaginal cancer. However, there are many drugs that mimic or otherwise affect hormone balance which are important to modern medicine. Other man made chemicals, with unintentional hormone-like activity include: pesticides such as DDT, vinclozolin, endosulfan, toxaphene, dieldrin, and DBCP, and industrial chemicals and byproducts such as polychlorinated biphenyls (PCBs), dioxins, and phenols. Some of these phenols are breakdown products of surfactants, found in soaps and detergents. Also implicated are heavy metals, plastics, cosmetics, textiles, paints, lubricants. Sewage treatment effluent may contain a variety of natural and man made endocrine dis
