Lecture 18 Mar 12 2008 Estrogen in water

Lecture 18 Mar 12 2008 Estrogen in water - Prescription...

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Unformatted text preview: Prescription drugs found in drinking water across U.S. http://www.cnn.com/2008/HEALTH/03/10/pharma.water1 .ap/index.html The occurrence and persistence of estrogen in surface and soil water in Virginia The modern water cycle includes human impact. What is in the water that we drink? PPCPs include • Prescription and over-the counter drugs • Veterinary drugs • Fragrances • Cosmetics • Sun-screen products Pharmaceuticals and personal care products are present in many water supplies. One or more of these chemicals was found present in low concentrations in 80% of the streams sampled. Pharmaceuticals and personal care products (emerging contaminants) get into water and move through the water cycle. The estrogen compound 17β-estradiol (E2) is a known endocrine disruptor and has significant health effects, even when present at relatively low concentrations on the order of parts per trillion. 1 part per trillion = 0.001 ng/mL Exposure to E2 has been associated with lowered sperm counts and increased risk for breast cancer in humans, as well as a number of dramatic changes in population for wildlife. The feminization of fish has been reported in rivers from around the world.world....
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This note was uploaded on 04/11/2008 for the course EVSC 280 taught by Professor Herman during the Spring '08 term at UVA.

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Lecture 18 Mar 12 2008 Estrogen in water - Prescription...

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