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Levels of metallothioneins in mussel tissues. Levels of metallothioneins were determined in mussels that were placed upstream and downstream a municipal effluent source. Significance was set at p < 0.05. Reprinted from Chemosphere, 62, Gagnon et al. Exposure of caged mussels to metals in a primary-treated municipal wastewater plume, 998–1010. Copyright (2006), with permission from Elsevier.
