Surface-Related Toxicity of Polystyrene Beads to Nematodes and the Role of Food Availability.

التفاصيل البيبلوغرافية
العنوان:	Surface-Related Toxicity of Polystyrene Beads to Nematodes and the Role of Food Availability.
المؤلفون:	Mueller MT; Bielefeld University , Animal Ecology, Konsequenz 45 , 33615 Bielefeld , Germany., Fueser H; Bielefeld University , Animal Ecology, Konsequenz 45 , 33615 Bielefeld , Germany., Trac LN; Department of Environmental Engineering , Technical University of Denmark , DK-2800 Kgs. Lyngby , Denmark., Mayer P; Department of Environmental Engineering , Technical University of Denmark , DK-2800 Kgs. Lyngby , Denmark., Traunspurger W; Bielefeld University , Animal Ecology, Konsequenz 45 , 33615 Bielefeld , Germany., Höss S; Bielefeld University , Animal Ecology, Konsequenz 45 , 33615 Bielefeld , Germany.; Ecossa , Giselastr. 6 , 82319 Starnberg , Germany.
المصدر:	Environmental science & technology [Environ Sci Technol] 2020 Feb 04; Vol. 54 (3), pp. 1790-1798. Date of Electronic Publication: 2020 Jan 14.
نوع المنشور:	Journal Article; Research Support, Non-U.S. Gov't
اللغة:	English
بيانات الدورية:	Publisher: American Chemical Society Country of Publication: United States NLM ID: 0213155 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1520-5851 (Electronic) Linking ISSN: 0013936X NLM ISO Abbreviation: Environ Sci Technol Subsets: MEDLINE
أسماء مطبوعة:	Publication: Washington DC : American Chemical Society Original Publication: Easton, Pa. : American Chemical Society, c1967-
مواضيع طبية MeSH:	Nematoda* , Water Pollutants, Chemical*, Animals ; Caenorhabditis elegans ; Plastics ; Polystyrenes ; Silicon Dioxide
مستخلص:	Microplastics released into freshwaters from anthropogenic sources settle in the sediments, where they may pose an environmental threat to benthic organisms. However, few studies have considered the ecotoxicological hazard of microplastic particles for nematodes, one of the most abundant taxa of the benthic meiofauna. This study investigated the toxic effects of polystyrene (PS) beads (0.1-10.0 μm) and the underlying mechanisms thereof on the reproduction of the nematode Caenorhabditis elegans . The observed effect of the PS beads on the nematodes correlated well with the total surface area of the beads per volume, with a 50% inhibition of reproduction at 55.4 ± 12.9 cm ² /mL, independent of the bead size. The adverse effects were not explained by styrene monomers leaching from the beads because chemical activities of styrene in PS suspensions were well below the toxic levels. However, the observed effects could be related to the bead material because the same-sized silica (SiO 2 ) beads had considerably less impact, probably due to their higher specific density. PS and SiO 2 beads affected the food availability of C. elegans , with greater effects by the PS beads. Our results demonstrate the importance of including indirect food web effects in studies of the ecological risks posed by microplastics.
المشرفين على المادة:	0 (Plastics) 0 (Polystyrenes) 0 (Water Pollutants, Chemical) 7631-86-9 (Silicon Dioxide)
تواريخ الأحداث:	Date Created: 20200115 Date Completed: 20200316 Latest Revision: 20200316
رمز التحديث:	20221213
DOI:	10.1021/acs.est.9b06583
PMID:	31934751
قاعدة البيانات:	MEDLINE

Find this issue from the American Chemical Society

الوصف
تدمد:	1520-5851
DOI:	10.1021/acs.est.9b06583