气候变化领域集成服务门户(CCPortal): Microplastic dispersal behavior in a novel overhead stirring aqueous exposure system

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DOI	10.1016/j.marpolbul.2020.111328
	Microplastic dispersal behavior in a novel overhead stirring aqueous exposure system
	Salaberria I.; Nadvornik-Vincent C.; Monticelli G.; Altin D.; Booth A.M.
发表日期	2020
ISSN	0025326X
卷号	157
英文摘要	Using nominal dose metrics to describe exposure conditions in laboratory-based microplastic uptake and effects studies may not adequately represent the true exposure to the organisms in the test system, making data interpretation challenging. In the current study, a novel overhead stirring method using flocculators was assessed for maintaining polystyrene (PS) microbeads (Ø10.4 μm; 1.05 g cm−3) in suspension in seawater during 24 h and then compared with static and rotational exposure setups. Under optimized conditions, the system was able to maintain 59% of the initial PS microbeads in suspension after 24 h, compared to 6% using a static system and 100% using a rotating plankton wheel. Our findings document for the first time that overhead stirring as well as other, commonly used exposure systems (static) are unable to maintain constant microplastic exposure conditions in laboratory setups whereas rotation is very effective. This suggests toxicological studies employing either static or overhead stirring systems may be greatly overestimating the true microplastic exposure conditions. © 2020 The Authors
英文关键词	Bioavailability; Microalga; Microplastic; Overhead stirring; Suspension
语种	英语
scopus关键词	Microbeads; Data interpretation; Exposure conditions; Exposure system; Laboratory set-up; Optimized conditions; Rotational exposure; Static systems; Test systems; Microplastic; glass; microplastic; polystyrene; sea water; stainless steel; plastic; polystyrene derivative; data interpretation; marine pollution; plastic waste; pollution exposure; seawater; toxicology; Article; controlled study; exposure; flocculation; overhead stirring; plankton; rotation; suspension; water pollutant; Microplastics; Plastics; Polystyrenes; Seawater; Water Pollutants, Chemical
来源期刊	Marine Pollution Bulletin
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/148807
作者单位	Norwegian University of Science and Technology, Department of Biology, Trondheim, Norway; Université Grenoble Alpes, Faculty of Pharmacy, La Tronche, France; Polytechnic University of Marche, Department of Life and Environmental Sciences, Ancona, Italy; Biotrix, Trondheim, Norway; SINTEF Ocean, Trondheim, Norway
推荐引用方式 GB/T 7714	Salaberria I.,Nadvornik-Vincent C.,Monticelli G.,et al. Microplastic dispersal behavior in a novel overhead stirring aqueous exposure system[J],2020,157.
APA	Salaberria I.,Nadvornik-Vincent C.,Monticelli G.,Altin D.,&Booth A.M..(2020).Microplastic dispersal behavior in a novel overhead stirring aqueous exposure system.Marine Pollution Bulletin,157.
MLA	Salaberria I.,et al."Microplastic dispersal behavior in a novel overhead stirring aqueous exposure system".Marine Pollution Bulletin 157(2020).