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Mean growth (±s.d.) as length (in mm) of G. pulex (A), A. aquaticus (B), S. corneum (C); and as dry weight (in mg) of H. azteca (D), Tubifex spp. (E) and L. variegatus (F) after a 28 day exposure to PS microplastic concentrations ranging from 0 to 40% in sediment dw.
