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Cocktail of pharmaceuticals affecting basic stream health

Antihistimines are drying up rock-coating algae

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Research shows that pharmaceutical waste is affecting basic stream ecology.

By Summit Voice

SUMMIT COUNTY — Antihistimines used to treat allergies do more than dry up runny noses. Remnant traces of the pharmaceuticals, now commonly found in many streams and rivers, are having a significant effect on basic biological processes, with as-yet unknown impacts on aquatic life and water quality.

“Pharmaceutical pollution is now detected in waters throughout the world. Causes include aging infrastructure, sewage overflows, and agricultural runoff, said Dr. Emma Rosi-Marshall, a scientist at the Cary Institute of Ecosystem Studies, lead author of a study that examined how common pharmaceuticals influenced similar-sized streams in New York, Maryland, and Indiana.

The study looked for traces of Caffeine, the antibiotic ciprofloxacin, the antidiabetic metformin, two antihistimines used to treat heartburn (cimetidine and ranitidine), and one antihistamine used to treat allergies (diphenhydramine). Continue reading

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