Different stories told by small and large microplastics in sediment - first report of microplastic concentrations in an urban recipient in Norway

Marte Haave; Claudia Lorenz; Sebastian Primpke; Gunnar Gerdts

doi:10.1016/j.marpolbul.2019.02.015

Different stories told by small and large microplastics in sediment - first report of microplastic concentrations in an urban recipient in Norway

Marte Haave^*, Claudia Lorenz, Sebastian Primpke, Gunnar Gerdts

^*Corresponding author for this work

Research output: Contribution to journal › Journal article › Research › peer-review

125 Citations (Scopus)

Abstract

Microplastics (MP) in sediments from discharge sites for wastewater and deposition sites in deep regions in an urban fjord in Norway were extracted by density separation in a Microplastic Sediment Separator with ZnCl₂. Particles (>11 μm) were identified using FTIR. Twenty different polymer types were identified, at concentrations from 12,000 to 200,000 particles kg⁻¹ dw. Over 95% of the MP were smaller than 100 μm. High deposition of small MP agreed with known areas for organic deposition. Polyurethane acrylate resins dominated the small MP while polyamide fibers dominated the larger MP. Particles >500 μm showed different maximum concentrations and spatial distribution from the smaller particles. This study is the first to report concentration ranges of identified plastic particles from a Norwegian fjord, down to sizes below the limit of visual identification. The results provides a baseline for future comparison, and point at relevant sizes for environmental risk assessments.

Original language	English
Journal	Marine Pollution Bulletin
Volume	141
Pages (from-to)	501-513
Number of pages	13
ISSN	0025-326X
DOIs	https://doi.org/10.1016/j.marpolbul.2019.02.015
Publication status	Published - Apr 2019
Externally published	Yes

Bibliographical note

Funding Information:
The study was funded in part by the Regional Research Funds Western Norway (project # 258890 , and the German Federal Minsistry of Education and Research (BMBF) grant 03F0734 - BASEMAN - Defining the baselines and standards for microplastic analyses in European waters. Contributions and funding were also provided by Bergen Municipality Water and Wastewater Department.

Publisher Copyright:
© 2019 Elsevier Ltd

Keywords

Extraction
FTIR imaging
Microplastic
Quantification
Sediments

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10.1016/j.marpolbul.2019.02.015

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title = "Different stories told by small and large microplastics in sediment - first report of microplastic concentrations in an urban recipient in Norway",

abstract = "Microplastics (MP) in sediments from discharge sites for wastewater and deposition sites in deep regions in an urban fjord in Norway were extracted by density separation in a Microplastic Sediment Separator with ZnCl2. Particles (>11 μm) were identified using FTIR. Twenty different polymer types were identified, at concentrations from 12,000 to 200,000 particles kg−1 dw. Over 95% of the MP were smaller than 100 μm. High deposition of small MP agreed with known areas for organic deposition. Polyurethane acrylate resins dominated the small MP while polyamide fibers dominated the larger MP. Particles >500 μm showed different maximum concentrations and spatial distribution from the smaller particles. This study is the first to report concentration ranges of identified plastic particles from a Norwegian fjord, down to sizes below the limit of visual identification. The results provides a baseline for future comparison, and point at relevant sizes for environmental risk assessments.",

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doi = "10.1016/j.marpolbul.2019.02.015",

language = "English",

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AU - Haave, Marte

AU - Lorenz, Claudia

AU - Primpke, Sebastian

AU - Gerdts, Gunnar

N1 - Funding Information: The study was funded in part by the Regional Research Funds Western Norway (project # 258890 , and the German Federal Minsistry of Education and Research (BMBF) grant 03F0734 - BASEMAN - Defining the baselines and standards for microplastic analyses in European waters. Contributions and funding were also provided by Bergen Municipality Water and Wastewater Department. Publisher Copyright: © 2019 Elsevier Ltd

PY - 2019/4

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N2 - Microplastics (MP) in sediments from discharge sites for wastewater and deposition sites in deep regions in an urban fjord in Norway were extracted by density separation in a Microplastic Sediment Separator with ZnCl2. Particles (>11 μm) were identified using FTIR. Twenty different polymer types were identified, at concentrations from 12,000 to 200,000 particles kg−1 dw. Over 95% of the MP were smaller than 100 μm. High deposition of small MP agreed with known areas for organic deposition. Polyurethane acrylate resins dominated the small MP while polyamide fibers dominated the larger MP. Particles >500 μm showed different maximum concentrations and spatial distribution from the smaller particles. This study is the first to report concentration ranges of identified plastic particles from a Norwegian fjord, down to sizes below the limit of visual identification. The results provides a baseline for future comparison, and point at relevant sizes for environmental risk assessments.

AB - Microplastics (MP) in sediments from discharge sites for wastewater and deposition sites in deep regions in an urban fjord in Norway were extracted by density separation in a Microplastic Sediment Separator with ZnCl2. Particles (>11 μm) were identified using FTIR. Twenty different polymer types were identified, at concentrations from 12,000 to 200,000 particles kg−1 dw. Over 95% of the MP were smaller than 100 μm. High deposition of small MP agreed with known areas for organic deposition. Polyurethane acrylate resins dominated the small MP while polyamide fibers dominated the larger MP. Particles >500 μm showed different maximum concentrations and spatial distribution from the smaller particles. This study is the first to report concentration ranges of identified plastic particles from a Norwegian fjord, down to sizes below the limit of visual identification. The results provides a baseline for future comparison, and point at relevant sizes for environmental risk assessments.

KW - Extraction

KW - FTIR imaging

KW - Microplastic

KW - Quantification

KW - Sediments

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DO - 10.1016/j.marpolbul.2019.02.015

M3 - Journal article

C2 - 30955761

AN - SCOPUS:85062726540

SN - 0025-326X

VL - 141

SP - 501

EP - 513

JO - Marine Pollution Bulletin

JF - Marine Pollution Bulletin

ER -

Different stories told by small and large microplastics in sediment - first report of microplastic concentrations in an urban recipient in Norway

Abstract

Bibliographical note

Keywords

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