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DDX levels well above death threshold in St. Louis robins

from Morning Sun

Among other action, results of the 2013 dead bird collection in St. Louis were presented to the Pine River Superfund Taskforce in their July meeting. Matt Zwiernik, a Michigan State University professor with a doctorate in environmental toxicology, gave a presentation to open the meeting. Tissue samples from 28 birds in the nine-block residential area contained DDX at levels that many times greater than those found to induce death in laboratory settings. "We looked at the literature and concentrations in the brain that caused acute effects, usually death, ranged from 7.5 parts-per-million to around 300 ppm," Zwiernik said. more

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