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Murky waters
Vegetarian Times, Sept, 2006
Scientists in England believe that pollutants with hormone-mimicking activity are to blame for the altered sexual development of a species of clams found in a number of southwestern British rivers. The phenomenon jeopardizes the clams' ability to reproduce, endangering the food supply of wading birds.
Possible sources are agricultural chemicals, estrogens from livestock waste, industrial runoff and wastewater treatment. In some sites, up to 60 percent of the clams the researchers examined were affected, according to a study carried out by William J. Langston, PhD, of the Marine Biological Association in Plymouth. Langston tells VT he is now trying to identify exactly which chemicals are causing the problem and hopes to have the answer later this year.
COPYRIGHT 2006 Vegetarian Times, Inc. All rights reserved.
COPYRIGHT 2008 Gale, Cengage Learning
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