Effects of Nylon Microplastic on Feeding, Lipid Accumulation, and Moulting in a Coldwater Copepod

Environmental Science & Technology, Journal Year: 2019, Volume and Issue: 53(12), P. 7075 - 7082

Published: May 24, 2019

Microplastic debris is a pervasive environmental contaminant that has the potential to impact health of biota, although its modes action remain somewhat unclear. The current study tested hypothesis exposure fibrous and particulate microplastics would alter feeding, impacting on lipid accumulation, normal development (e.g., growth, moulting) in an ecologically important coldwater copepod Calanus finmarchicus. Preadult copepods were incubated seawater containing mixed assemblage cultured microalgae (control), with addition ∼50 mL-1 nylon microplastic granules (10-30 μm) or fibers (10 × 30 μm), which are similar shape size microalgal prey. additive chemical profiles showed presence stabilizers, lubricants, monomer residues, byproducts. Prey selectivity was significantly altered exposed (ANOVA, P < 0.01) resulting nonsignificant 40% decrease algal ingestion rates = 0.07), accumulation 0.62). Both triggered premature moulting juvenile (Bernoulli GLM, 0.01). Our results emphasize profile can influence bioavailability toxicity, drawing attention importance using environmentally relevant chemically profiling plastics used toxicity testing.

Language: Английский

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“Microplastic communities” in different environments: Differences, links, and role of diversity index in source analysis

Water Research, Journal Year: 2020, Volume and Issue: 188, P. 116574 - 116574

Published: Oct. 26, 2020

Language: Английский

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Plastic debris in lakes and reservoirs

Nature, Journal Year: 2023, Volume and Issue: 619(7969), P. 317 - 322

Published: July 12, 2023

Language: Английский

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Risks of floating microplastic in the global ocean

Environmental Pollution, Journal Year: 2020, Volume and Issue: 267, P. 115499 - 115499

Published: Aug. 31, 2020

Despite the ubiquitous and persistent presence of microplastic (MP) in marine ecosystems, knowledge its potential harmful ecological effects is low. In this work, we assessed risk floating MP (1 μm–5 mm) to ecosystems by comparing ambient concentrations global ocean with available ecotoxicity data. The integration twenty-three species-specific effect threshold concentration data a species sensitivity distribution yielded median unacceptable level 1.21 ∗ 105 m−³ (95% CI: 7.99 103–1.49 106 m−³). We found that 2010 for 0.17% surface layer (0–5 m) threatening would occur. By 2050 2100, fraction increases 0.52% 1.62%, respectively, according worst-case predicted future plastic discharge into ocean. Our results reveal spatial multidecadal variability MP-related at surface. For example, have identified Mediterranean Sea Yellow as hotspots risks already now even more pronounced decades.

Language: Английский

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Release of harmful volatile organic compounds (VOCs) from photo-degraded plastic debris: A neglected source of environmental pollution

Journal of Hazardous Materials, Journal Year: 2020, Volume and Issue: 394, P. 122596 - 122596

Published: April 1, 2020

Language: Английский

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