Significance of interactions between microplastics and POPs in the marine environment: A critical overview

Rodrigues, Joana Patrício; Duarte, Armando C.; Santos-Echeandía, Juan; Rocha-Santos, Teresa

doi:10.1016/j.trac.2018.11.038

Cited by 383 publications

(130 citation statements)

References 57 publications

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“…The sorption rate of these pollutants on plastics debris can vary among polymers: shape, crystallinity, surface functional groups, and ageing of particles affect the sorption capacity of pollutants [98,99]. For example, polyethylene pellets have a higher affinity for PCB than those of polypropylene [95,100].…”

Section: Interaction Of Mps With Micropollutantsmentioning

confidence: 99%

“…The higher affinity of PE is the result of the larger volume of the inertial cavities, which allows the diffusion of compounds into the polymer [101]. Moreover, physiochemical properties of water affect adsorption equilibria [98,102].…”

Section: Interaction Of Mps With Micropollutantsmentioning

confidence: 99%

“…Therefore, MPs can act as vectors in the transport of contaminants in water systems and in organisms by ingestion [4,12,45,85,98,103]. Entering aqueous systems, MPs loaded with contaminants can increase the aqueous concentrations of pollutants by desorption processes, and this may be especially significant in continental freshwater, where concentrations of these chemicals are expected to be higher than in marine systems [104].…”

Section: Interaction Of Mps With Micropollutantsmentioning

confidence: 99%

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Microplastic Contamination in Freshwater Environments: A Review, Focusing on Interactions with Sediments and Benthic Organisms

et al. 2020

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Plastic is one of the most commonly produced and used materials in the world due to its outstanding features. However, the worldwide use of plastics and poor waste management have led to negative impacts on ecosystems. Plastic degradation in the environment leads to the generation of plastic particles with a size of <5 mm, which are defined as microplastics (MPs). These represent a global concern due to their wide dispersion in water environments and unclear potential ecotoxicological effects. Different studies have been performed with the aim of evaluating the presence and impacts of MPs in the marine environment. However, the presence of MPs in freshwater systems is still poorly investigated, making data retrieval a difficult task. The purpose of this review is to identify the main aspects concerning MPs pollution sources in lakes and rivers, with a focus on freshwater sediments as a site of accumulation and as the habitat of benthic organisms, which are key components of food webs and play a fundamental role in energy/contaminant transfer processes, but are still poorly considered. Through this review, the sources and fate of MPs in freshwater are analysed, ecotoxicological studies focused on sediments and benthic fauna are exposed, the most frequently used sampling and analysis strategies are reported, and future trends of MPs analysis in this field are proposed.

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Section: Interaction Of Mps With Micropollutantsmentioning

confidence: 99%

Section: Interaction Of Mps With Micropollutantsmentioning

confidence: 99%

Section: Interaction Of Mps With Micropollutantsmentioning

confidence: 99%

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Microplastic Contamination in Freshwater Environments: A Review, Focusing on Interactions with Sediments and Benthic Organisms

et al. 2020

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“…Maybe even more importantly, a meaningful assessment of the sorption and desorption behavior cannot be conducted without considering a variety of physical parameters, e.g. permeability, diffusion coefficients, solubility and polarity [41]. Müller et al (2018) have demonstrated that sorption (and herewith also desorption) of chemicals to MP is highly influenced by polymer-specific parameters such as glass transition temperature and crystallization content [42].…”

Section: Plos Onementioning

confidence: 99%

A metrologically traceable protocol for the quantification of trace metals in different types of microplastic

Hildebrandt

Zimmermann³

et al. 2020

PLoS ONE

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The presence of microplastic (MP) particles in aquatic environments raised concern about possible enrichment of organic and inorganic pollutants due to their specific surface and chemical properties. In particular the role of metals within this context is still poorly understood. Therefore, the aim of this work was to develop a fully validated acid digestion protocol for metal analysis in different polymers, which is a prerequisite to study such interactions. The proposed digestion protocol was validated using six different certified reference materials in the microplastic size range consisting of polyethylene, polypropylene, acrylonitrile butadiene styrene and polyvinyl chloride. As ICP-MS/MS enabled time-efficient, sensitive and robust analysis of 56 metals in one measurement, the method was suitable to provide mass fractions for a multitude of other elements beside the certified ones (As, Cd, Cr, Hg, Pb, Sb, Sn and Zn). Three different microwaves, different acid mixtures as well as different temperatures in combination with different hold times were tested for optimization purposes. With the exception of Cr in acrylonitrile butadiene styrene, recovery rates obtained using the optimized protocol for all six certified reference materials fell within a range from 95.9% ± 2.7% to 112% ± 7%. Subsequent optimization further enhanced both precision and recoveries ranging from 103% ± 5% to 107 ± 4% (U; k = 2 (n = 3)) for all certified metals (incl. Cr) in acrylonitrile butadiene styrene. The results clearly show the analytical challenges that come along with metal analysis in chemically resistant plastics. Addressing specific analysis tools for different sorption scenarios and processes as well as the underlying kinetics was beyond this study's scope. However, the future application of the two recommended thoroughly validated total acid digestion protocols as a first step in the direction of harmonization of metal analysis in/on MP will enhance the significance and comparability of the generated data. It will contribute to a better understanding of the role of MP as vector for trace metals in the environment.

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“…For instance, the antibiotic tetracycline has a higher affinity for polystyrene than polyethylene or polypropylene, with sorption decreasing in the presence of dissolved organic matter (Xu et al 2018). Even when POPs accumulate in microplastics in the natural environment, there is still limited data to support the role of microplastics as vectors of these pollutants, requiring further assessment due to knowledge gaps caused by unrealistic test conditions (reviewed by Lohmann 2017; Rodrigues et al 2019). Regarding airborne microplastics, their role as vectors of pollutants and microorganisms has yet to be explored due to methodological limitations, such as small sizes, the presence of other contaminants (e.g., particulate matter), and removal during sample preparation.…”

Section: Impacts On Environment and Human Health Of Atmospheric Contamentioning

confidence: 99%

Airborne Microplastics

Prata

Castro

Costa

et al. 2020

Handbook of Microplastics in the Environment

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Significance of interactions between microplastics and POPs in the marine environment: A critical overview

Cited by 383 publications

References 57 publications

Microplastic Contamination in Freshwater Environments: A Review, Focusing on Interactions with Sediments and Benthic Organisms

Microplastic Contamination in Freshwater Environments: A Review, Focusing on Interactions with Sediments and Benthic Organisms

A metrologically traceable protocol for the quantification of trace metals in different types of microplastic

Airborne Microplastics

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