Partitioning of chemical contaminants to microplastics: Sorption mechanisms, environmental distribution and effects on toxicity and bioaccumulation

Tourinho, Paula S.; Kočí, Václav; Loureiro, Susana; Gestel, Cornelis A.M. van

doi:10.1016/j.envpol.2019.06.030

Cited by 374 publications

(164 citation statements)

References 111 publications

(237 reference statements)

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“…Microplastics as stated earlier have low polarity on its surface due to electrostatic interactions and pH of point of zero charge (pH pzc ) being lower than most environmental pHs [94,125,190,199]. The low polarity (becoming more negative) exhibited by microplastics could also be responsible for aqueous metal ions adsorption on their surfaces.…”

Section: Hydrophobic Adsorption Of Chemicalsmentioning

confidence: 91%

Microplastic–toxic chemical interaction: a review study on quantified levels, mechanism and implication

et al. 2019

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Current problem facing researchers globally is microplastics as well as toxic chemical pollution of the ecosystem. Microplastics carry toxic chemicals in the ecosystem serving as a vector for transport. In this study, a review of the literature has been conducted with the following objectives: (1) to summarize the concentrations of toxic chemicals such heavy metals and hydrophobic organic contaminants sorped on microplastics; (2) to evaluate their spatial distribution regarding adsorbed contaminant; (3) to discuss plausible mechanism by which microplastics adsorp or desorp toxic chemicals in the environment; (4) to discuss implications of their occurrence in air, water and soil media; and (5) to discuss the impact of ingested microplastics to human health. Microplastics are ubiquitous environmental contaminant. Concentrations of sorped toxic chemical varied by location which represents a local problem; industrialized areas (especially areas experiencing crude oil-related activities or have history of crude oil pollution) have higher concentrations than less industrialized areas. Ingestion of microplastics has been demonstrated in a range of marine and soil organisms as well as edible plants, thus possibly contaminating the base of the food web. Potential health effect to human is by particle localization, chemical toxicity and microbial toxins. We conclude by highlighting the gap in knowledge and suggesting key future areas of research for scientists and policymakers.

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Section: Hydrophobic Adsorption Of Chemicalsmentioning

confidence: 91%

Microplastic–toxic chemical interaction: a review study on quantified levels, mechanism and implication

et al. 2019

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“…Likewise, An and colleagues demonstrated trophic transfer of NPs from algae to Daphnia, then to a secondary consumer fish, and finally to an end consumer fish [36]. On the other hand, organic pollutants could be adsorbed onto MPs/NPs [37][38][39][40][41] and there is evidence that this could potentially enhance their effective uptake and toxicity [42][43][44][45]. Likewise, MPs/NPs are known to interact with metallic toxicants such as Cadmium [46][47][48], Mercury [49], and other toxic trace elements [50], and could potentially serve as vectors for pollutant transfer to living organisms.…”

Section: Introductionmentioning

confidence: 99%

Toxicity of Microplastics and Nanoplastics in Mammalian Systems

Yong

Valiyaveettil

Tang

2020

IJERPH

552

280

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Fragmented or otherwise miniaturized plastic materials in the form of micro- or nanoplastics have been of nagging environmental concern. Perturbation of organismal physiology and behavior by micro- and nanoplastics have been widely documented for marine invertebrates. Some of these effects are also manifested by larger marine vertebrates such as fishes. More recently, possible effects of micro- and nanoplastics on mammalian gut microbiota as well as host cellular and metabolic toxicity have been reported in mouse models. Human exposure to micro- and nanoplastics occurs largely through ingestion, as these are found in food or derived from food packaging, but also in a less well-defined manner though inhalation. The pathophysiological consequences of acute and chronic micro- and nanoplastics exposure in the mammalian system, particularly humans, are yet unclear. In this review, we focus on the recent findings related to the potential toxicity and detrimental effects of micro- and nanoplastics as demonstrated in mouse models as well as human cell lines. The prevailing data suggest that micro- and nanoplastics accumulation in mammalian and human tissues would likely have negative, yet unclear long-term consequences. There is a need for cellular and systemic toxicity due to micro- and nanoplastics to be better illuminated, and the underlying mechanisms defined by further work.

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“…To determine the amount of methiocarb sorbed on PS particles, a separate sorption study would be necessary. Sorption of chemical contaminants to MP involves various mechanisms and depends on physicochemical properties of the sorbate, the sorbent, as well as the medium characteristics [73]. The animals were exposed to either PS-MP alone (10 4 particles/L), to methiocarb alone (1 mg/L), or co-exposed to both (10 4 particles/L and 1 mg/L methiocarb) for 96 h. The chosen methiocarb concentration was relatively high to ensure that the effects of methiocarb and hence also a possible modulation could be observed in the experiment.…”

Section: Introductionmentioning

confidence: 99%

Polystyrene microplastics do not affect juvenile brown trout (Salmo trutta f. fario) or modulate effects of the pesticide methiocarb

et al. 2020

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Background: There has been a rising interest within the scientific community and the public about the environmental risk related to the abundance of microplastics in aquatic environments. Up to now, however, scientific knowledge in this context has been scarce and insufficient for a reliable risk assessment. To remedy this scarcity of data, we investigated possible adverse effects of polystyrene particles (10 4 particles/L) and the pesticide methiocarb (1 mg/L) in juvenile brown trout (Salmo trutta f. fario) both by themselves as well as in combination after a 96 h laboratory exposure. PS beads (density 1.05 g/mL) were cryogenically milled and fractionated resulting in irregular-shaped particles (< 50 µm). Besides body weight of the animals, biomarkers for proteotoxicity (stress protein family Hsp70), oxidative stress (superoxide dismutase, lipid peroxidation), and neurotoxicity (acetylcholinesterase, carboxylesterases) were analyzed. As an indicator of overall health, histopathological effects were studied in liver and gills of exposed fish. Results: Polystyrene particles by themselves did not influence any of the investigated biomarkers. In contrast, the exposure to methiocarb led to a significant reduction of the activity of acetylcholinesterase and the two carboxylesterases. Moreover, the tissue integrity of liver and gills was impaired by the pesticide. Body weight, the oxidative stress and the stress protein levels were not influenced by methiocarb. Effects caused by co-exposure of polystyrene microplastics and methiocarb were the same as those caused by methiocarb alone. Conclusions: Overall, methiocarb led to negative effects in juvenile brown trout. In contrast, polystyrene microplastics in the tested concentration did not affect the health of juvenile brown trout and did not modulate the toxicity of methiocarb in this fish species.

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Partitioning of chemical contaminants to microplastics: Sorption mechanisms, environmental distribution and effects on toxicity and bioaccumulation

Cited by 374 publications

References 111 publications

Microplastic–toxic chemical interaction: a review study on quantified levels, mechanism and implication

Microplastic–toxic chemical interaction: a review study on quantified levels, mechanism and implication

Toxicity of Microplastics and Nanoplastics in Mammalian Systems

Polystyrene microplastics do not affect juvenile brown trout (Salmo trutta f. fario) or modulate effects of the pesticide methiocarb

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