Lecture 18 Mar 12 2008 Estrogen in water

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

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Prescription drugs found in drinking water across U.S. http://www.cnn.com/2008/HEALTH/03/10/pharma.water1 .ap/index.html
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The occurrence and persistence of estrogen in surface and soil water in Virginia
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The modern water cycle includes human impact.
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What is in the water that we drink?
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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.
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One or more of these chemicals was found present in low concentrations in 80% of the streams sampled.
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Pharmaceuticals and personal care products (emerging contaminants) get into water and move through the water cycle.
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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
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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.
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