Moving forward in microplastic research: A Norwegian perspective

Lusher, Amy; Hurley, Rachel; Arp, Hans Peter H.; Booth, Andy M.; Bråte, Inger Lise Nerland; Gabrielsen, Geir Wing; Gomiero, Alessio; Gomes, Tânia; Grøsvik, Bjørn Einar; Green, Norman; Haave, Marte; Hallanger, Ingeborg G.; Halsband, Claudia; Herzke, Dorte; Joner, Erik J.; Kögel, Tanja; Rakkestad, Kirsten Eline; Ranneklev, Sissel Brit; Wagner, Martin; Olsen, Marianne

doi:10.1016/j.envint.2021.106794

Cited by 47 publications

(23 citation statements)

References 120 publications

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“…It is possible that with a lower size detection limit, higher concentrations may have been detected in the sediments and, potentially, the mussels. Nevertheless, current microplastic monitoring focuses on larger microplastics particles, typically in the range > 300 µm, so species that preferentially ingest particles below the detection limit here (50 µm) may not represent a suitable bioindicator species in this context (Lusher et al 2021b ). Finally, the lack of microplastics detected in D. polymorpha in this study may reflect the low concentrations observed.…”

Section: Discussionmentioning

confidence: 99%

Anthropogenically impacted lake catchments in Denmark reveal low microplastic pollution

Kallenbach

Friberg

Lusher

et al. 2022

Environ Sci Pollut Res

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Microplastics have been detected in lake environments globally, including in remote regions. Agricultural and populated areas are known to congregate several inputs and release pathways for microplastic. This study investigated microplastic (50–5000 µm) contamination in five Danish freshwater lakes with catchments dominated by arable land use. The concentrations in sediments (n = 3/site) and the zebra mussel, Dreissena polymorpha (n = 30/site), were calculated and compared with catchment characteristics and environmental parameters. Microplastic concentrations in sediment were relatively low (average 0.028 ± 0.017 items/g dry weight sediment) whilst only a single microplastic was found in the mussels (average 0.067 ± 0.249 items/10 individual). Hence, no relationship between the number of observed microplastics in sediment and mussels could be identified, nor could a relationship between concentration in sediment and environmental parameters. As all lakes studied received their water from moderate to heavily anthropogenically impacted catchments, it was expected that they would be sinks for microplastic with high bioavailability. Based on the results of the present study, D. polymorpha were found to not be contaminated by microplastics in the five study lakes. Thus, our results suggest that these mussels do not interact with microplastics at low concentrations. We speculate that the results on sediment and biota could be explained by several factors related to regional differences in plastic use, species characteristics, sampling size, and the fact that finding no microplastic is not always reported in the scientific literature. Thus, the paper provides insight into the dynamics between the catchment, lake, and biota in systems with low microplastic concentration.

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Section: Discussionmentioning

confidence: 99%

Anthropogenically impacted lake catchments in Denmark reveal low microplastic pollution

Kallenbach

Friberg

Lusher

et al. 2022

Environ Sci Pollut Res

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“…Although local sources and pathways, e.g., rivers [177,57,197], wastewater effluents [132,64,186,79], garbage dumping sites [65], and industries [68,128] may contribute significantly to marine plastic pollution in the Arctic we have little knowledge about the quantity and quality of plastic pollution originating from them. One approach to distinguishing different sources can be to measure typical signatures of MPs in a given water mass [127,135].…”

Section: Is It Possible To Determine the Relative Contribution Of Mic...mentioning

confidence: 99%

Understanding microplastic pollution in the Nordic marine environment – knowledge gaps and suggested approaches

et al. 2022

Self Cite

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This paper examines a number of specific, practical recommendations to advance knowledge and move towards evidence-based solutions to microplastic (MP) pollution in the Nordic marine environment. The paper approaches the subject of MPs holistically, emphasises the knowledge gaps and challenges in answering pressing questions, discusses the limitations that so far have prevented these questions from being solved, and suggests approaches for answering them. The Nordic context is chosen due to the global importance of its ecosystem that is threatened by MP pollution, exacerbated by climate change. The research questions discussed pick up knowledge gaps identified in attempts to answer the most pressing questions of our time regarding marine MP pollution and are applicable to some or all seas of the Nordic region, from the Baltic and North Seas in the south to the Arctic in the north.The research questions relate to sources, sinks and transport of MPs, and how food webs are potentially impacted in Nordic marine environments. In addition, we point out the relevance for stakeholders expected to use the emerging knowledge. Through this exercise, using concrete examples, we aim to invite discussions on how a concerted effort by the Nordic countries can bring MP research to a higher level of understanding needed to address the MP pollution problem in Nordic marine habitats.

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“…The presence of carbon black causes a disruptive fluorescence phenomenon when exposed to laser lights, resulting in almost complete absorption of the infrared light (Eisentraut et al, 2018;Kole et al, 2017). Several studies have been published recently using pyrolysis GC/MS for the quantification of specific tracers present in TWP (ISO, 2017a, b;Goßmann et al, 2021;Parker-Jurd et al, 2021;Rødland et al, 2022a), but a standardized method for sampling, sample preparation, and analysis is still missing (Lusher et al, 2021;Rauert et al, 2021). This is mainly due to the difficulties of recognizing TWP in environmental samples and that analytical methods are either affected by time-consuming sample preparations or limited to specific size ranges (Jekel, 2019).…”

Section: Introductionmentioning

confidence: 99%

Differentiating and Quantifying Carbonaceous (Tire, Bitumen, and Road Marking Wear) and Non-carbonaceous (Metals, Minerals, and Glass Beads) Non-exhaust Particles in Road Dust Samples from a Traffic Environment

Järlskog

Jaramillo‐Vogel²,

Rausch³

et al. 2022

Water Air Soil Pollut

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Tires, bitumen, and road markings are important sources of traffic-derived carbonaceous wear particles and microplastic (MP) pollution. In this study, we further developed a machine-learning algorithm coupled to an automated scanning electron microscopy/energy dispersive X-ray spectroscopy (SEM/EDX) analytical approach to classify and quantify the relative number of the following subclasses contained in environmental road dust: tire wear particles (TWP), bitumen wear particles (BiWP), road markings, reflecting glass beads, metallics, minerals, and biogenic/organics. The method is non-destructive, rapid, repeatable, and enables information about the size, shape, and elemental composition of particles 2–125 µm. The results showed that the method enabled differentiation between TWP and BiWP for particles > 20 µm with satisfying results. Furthermore, the relative number concentration of the subclasses was similar in both analyzed size fractions (2–20 µm and 20–125 µm), with minerals as the most dominant subclass (2–20 µm x̄ = 78%, 20–125 µm x̄ = 74%) followed by tire and bitumen wear particles, TBiWP, (2–20 µm x̄ = 19%, 20–125 µm x̄ = 22%). Road marking wear, glass beads, and metal wear contributed to x̄ = 1%, x̄ = 0.1%, and x̄ = 1% in the 2–20-µm fraction and to x̄ = 0.5%, x̄ = 0.2%, and x̄ = 0.4% in the 20–125-µm fraction. The present results show that road dust appreciably consists of TWP and BiWP within both the coarse and the fine size fraction. The study delivers quantitative evidence of the importance of tires, bitumen, road marking, and glass beads besides minerals and metals to wear particles and MP pollution in traffic environments based on environmental (real-world) samples

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Moving forward in microplastic research: A Norwegian perspective

Cited by 47 publications

References 120 publications

Anthropogenically impacted lake catchments in Denmark reveal low microplastic pollution

Anthropogenically impacted lake catchments in Denmark reveal low microplastic pollution

Understanding microplastic pollution in the Nordic marine environment – knowledge gaps and suggested approaches

Differentiating and Quantifying Carbonaceous (Tire, Bitumen, and Road Marking Wear) and Non-carbonaceous (Metals, Minerals, and Glass Beads) Non-exhaust Particles in Road Dust Samples from a Traffic Environment

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