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Pharmaceuticals and Personal Care Products in Public Water Supplies. US Conference of Mayors: Mayors Water Council & Sustainable Development Task Force January 19, 2009. Herb Buxton USGS Toxic Substances Hydrology Program. Pharmaceuticals and Personal Care Products (PPCPs). Drugs
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Pharmaceuticals and Personal Care Products in Public Water Supplies US Conference of Mayors: Mayors Water Council & Sustainable Development Task Force January 19, 2009 Herb Buxton USGS Toxic Substances Hydrology Program
Pharmaceuticals and Personal Care Products (PPCPs) • Drugs • Detergents • Antioxidants • Fire retardants • Disinfectants • Fumigants • Fragrances • Insecticides/ Repellants • Chemicals that co-occur and have similar MOA • Biogenic Hormones • Pesticides • Industrial Chemicals • Some Metals • Natural hormones • Natural antimicrobials • Degradation byproducts
USGS Questions • What contaminants have been found in public drinking water in the US? • Where have they been found? • What levels have been detected? • Do we have data on trends in terms of geography and levels?
Are PPCP’s entering our environment? Results of National Stream & Groundwater Surveys • Present in water at sub-ppb conc.’s. • Present in mixtures. • Greater levels in streams than wells Pre. drugs Detergents Kolpin, et al., 2002; Barnes et al., 2008
PPCPs in Source Waters National Source Water Survey Explanation + GW (25) SW (49) Surface Water Ground Water Percent Detection Focazio et al., 2008
Natural Dilution and Degradation National Source Water Survey Source Waters (Streams) Susceptible Streams Percent Detection Focazio et al., 2008
Raw Water Finished Water Percent Detection Percent Detection HHCB HHCB AHTN Pharmaceutical/Antibiotic Flame retardant/Plasticizer Fragrance Pesticide Plant/Animal steroid Detergent metabolite PAHs Others Levels Generally Reduced by Treatment with GAC Filters Removal in Treatment, NJ Facility Stackelberg et al., 2004 & 2007
15Max. (ppt) 42 19 18 18 2.1 470 93 510 3 0.82 100 0.33 1.2 25 PPCPs in Finished Drinking Water *12 of 20 Pharm’s not detected 18 DW Facilities Pharm’s PCPs Conducted by Southern Nevada Water Authority Supported by AWWA Research Fnd. & WateReuse Fnd. Detections Benotti et al. 2008
Finished Drinking Water Survey: 2007-Present, USEPA & USGS • Varied locations across the Nation. • Paired source/finished water samples. • Varied treatment types. • Significant QA/QC to ensure reliability • Working with water suppliers
Thank you! For more information: http://toxics.usgs.gov hbuxton@usgs.gov