The endocrine systems of animals can be changed by compounds that have been detected
in water supplies around the world. These substances are collectively known as endocrine-
disrupting compounds (EDCs). Pharmaceutical compounds and their metabolites have been
collectively termed pharmaceutically active compounds (PhACs). Many PhACs have now been
detected in surface waters, a few of which have been detected in finished drinking water.
Personal care products (PCPs) create another class of emerging contaminants that have been
detected in surface and groundwaters. EDCs and PhACs/PCPs (PPCPs) have been linked to a
variety of adverse effects on wildlife. Some public and regulatory agencies view EDC & PPCP
compounds in drinking water as a potential human health risk. Pesticides and herbicides can be
EDCs and have been detected in surface and finished drinking waters since 1970s. However,
over the past decade as analytical techniques to detect part-per-trillion levels of organic
compounds, many industrial-produced chemicals have been detected in finished wastewater,
industrial runoff, rivers, drinking water sources, and even finished drinking water. Numerous
studies have shown that conventional water treatment plants (WTPs) would be expected to
remove less than 20% of most EDCs or PPCPs. Powdered activated carbon (PAC) addition
appears to be a viable, relatively simple and economical, upgrade for conventional WTPs to
remove EDCs and PPCPs. Advanced technologies (e.g., membrane filtration and AOPs) are
costly but have the potential to achieve very high EDC or PPCP removals. Includes 108 references, tables.