气候变化领域集成服务门户(CCPortal): Microplastic fragment and fiber contamination of beach sediments from selected sites in Virginia and North Carolina; USA

CCPortal

DOI	10.1016/j.marpolbul.2019.110869
	Microplastic fragment and fiber contamination of beach sediments from selected sites in Virginia and North Carolina; USA
	Dodson G.Z.; Shotorban A.K.; Hatcher P.G.; Waggoner D.C.; Ghosal S.; Noffke N.
发表日期	2020
ISSN	0025326X
卷号	151
英文摘要	Microplastic particles (<5 mm) constitute a growing pollution problem within coastal environments. This study investigated the microplastic presence of estuarine and barrier island beaches in the states of Virginia and North Carolina, USA. Seventeen sediment cores were collected at four study sites and initially tested for microplastic presence by pyrolysis-gas chromatography–mass spectrometry. For the extraction, microplastic particles were first separated from the sediment using a high-density cesium chloride solution (1.88 g/mL). In a second step, an oil extraction collected the remaining microplastic particles of higher densities. Under the light microscope, the extracted microplastic particles were classified based on their morphologies into fragments and fibers. Raman microspectroscopy chemically identified a subset of microplastic particles as polypropylene, polyethylene terephthalate, poly(4-vinylbiphenyl), polystyrene, polyethylene, and nylon. The results show a concentration of microplastic particles (1410 ± 810 per kg of dry sediment) even in protected and ostensibly unpolluted estuarine and beach sediments of Virginia and North Carolina. © 2019
英文关键词	Coastal sediment; Microfiber; Microplastic; Microplastic identification; Microplastic particle extraction
语种	英语
scopus关键词	Beaches; Cesium compounds; Chlorine compounds; Extraction; Gas chromatography; Mass spectrometry; Plastic bottles; Polyethylenes; Polypropylenes; Sediments; Coastal environments; Coastal sediments; Micro-fiber; Microplastic particles; North Carolina , USA; Pollution problems; Pyrolysis gas chromatography; Raman microspectroscopy; Microplastic; cesium chloride; chemical compound; microplastic; nylon; plastic; poly (4 vinylbiphenyl); polyethylene; polyethylene terephthalate; polypropylene; polystyrene; unclassified drug; plastic; barrier island; beach; cesium; chloride; coastal sediment; marine pollution; marine sediment; plastic waste; pyrolysis; Article; concentration (parameter); estuary; mass fragmentography; North Carolina; pyrolysis mass spectrometry; Raman spectrometry; seashore; sediment; Virginia; water contamination; environmental monitoring; sediment; water pollutant; North Carolina; United States; Virginia; Environmental Monitoring; Geologic Sediments; Microplastics; North Carolina; Plastics; Virginia; 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/149237
作者单位	Department of Ocean, Earth & Atmospheric Sciences, Old Dominion University, Norfolk, VA 23529, United States; Department of Chemistry, Old Dominion University, Norfolk, VA 23529, United States; California Department of Public Health, Environmental Health Laboratory Branch, Richmond, CA 94804, United States
推荐引用方式 GB/T 7714	Dodson G.Z.,Shotorban A.K.,Hatcher P.G.,et al. Microplastic fragment and fiber contamination of beach sediments from selected sites in Virginia and North Carolina; USA[J],2020,151.
APA	Dodson G.Z.,Shotorban A.K.,Hatcher P.G.,Waggoner D.C.,Ghosal S.,&Noffke N..(2020).Microplastic fragment and fiber contamination of beach sediments from selected sites in Virginia and North Carolina; USA.Marine Pollution Bulletin,151.
MLA	Dodson G.Z.,et al."Microplastic fragment and fiber contamination of beach sediments from selected sites in Virginia and North Carolina; USA".Marine Pollution Bulletin 151(2020).