Popular Fungicide Damages Freshwater Ecosystems
Chlorothalonil, one of the world’s most common fungicides used pervasively on food crops and golf courses, was found to be lethal to a wide variety of freshwater organisms in a new study, Univ. of South Florida researchers say.
Biologists Taegan McMahon and Jason Rohr, co-authors of the study published in the journal Ecology Letters, report that chlorothalonil killed amphibians, snails, zooplankton, algae, and aquatic plants below estimated environmental concentrations previously deemed safe by the U.S. Environmental Protection Agency. The loss of these herbivores and plants freed the algae from predation and competition, which eventually resulted in algal blooms that were similar to the effects of eutrophication.
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