Rethinking the relevance of microplastics as vector for anthropogenic contaminants: Adsorption of toxicants to microplastics during exposure in a highly polluted stream - Analytical quantification and assessment of toxic effects in zebrafish (Danio rerio)

Hanslik, Lisa; Huppertsberg, Sven; Kämmer, Nadine; Knepper, Thomas P.; Braunbeck, Thomas

doi:10.1016/j.scitotenv.2021.151640

Cited by 20 publications

(3 citation statements)

References 131 publications

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“…To close this gap, Hanslik et al placed a mixture of different polymer types (polyethylene, polypropylene, polystyrene, and polyvinyl chloride) in a highly polluted stream (tributary of the Rhine River) for 21 days. 227 GC-MS and LC-MS/MS were used to identify and quantify sorbed contaminants on the MPs (and in surrounding water, sediments, and suspended matter), and the exposed MPs were administered to zebrafish embryos to test for potential adverse effects. While 96 contaminants were identified, with most sorbing onto the MPs, the sorbed fraction was quite comparable to that sorbed on natural microparticles (sediments and particulate suspended matter), suggesting the influence of humic materials or similar biofilms on artificial and natural particles.…”

Section: ■ Algal Toxinsmentioning

confidence: 99%

“…While most toxicity studies of MPs have been conducted on new, virgin plastics, few have investigated real-world, natural conditions, where MPs experience biofouling, weathering, and alterations in sorption capacity. To close this gap, Hanslik et al placed a mixture of different polymer types (polyethylene, polypropylene, polystyrene, and polyvinyl chloride) in a highly polluted stream (tributary of the Rhine River) for 21 days . GC-MS and LC-MS/MS were used to identify and quantify sorbed contaminants on the MPs (and in surrounding water, sediments, and suspended matter), and the exposed MPs were administered to zebrafish embryos to test for potential adverse effects.…”

Section: Microplasticsmentioning

confidence: 99%

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Water Analysis: Emerging Contaminants and Current Issues

Richardson,

Manasfi

2024

Anal. Chem.

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BACKGROUND AND TRENDSThis biennial review covers developments in water analysis for emerging environmental contaminants mainly over the period of September 2021−December 2023 (with a few in early 2024). Analytical Chemistry's policy is to limit reviews to a maximum of ∼250 significant references and to mainly focus on new trends. Therefore, only a small fraction of the quality research publications are discussed. The previous Water Analysis review (with Thomas Ternes) was published in 2022. 1 This year, Tarek Manasfi joined to cover the section on pharmaceuticals and hormones. We welcome any comments you have on this Review

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Section: ■ Algal Toxinsmentioning

confidence: 99%

Section: Microplasticsmentioning

confidence: 99%

Water Analysis: Emerging Contaminants and Current Issues

Richardson,

Manasfi

2024

Anal. Chem.

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“…Small pieces of plastic called primary microplastics can enter the environment directly or indirectly through an overspill. Spills, sewage, and domestic and industrial effluent are examples of direct emissions of primary microplastics [8]. Secondary microplastics are formed from larger plastic items present in the environment when these larger plastic items disintegrate into smaller particles due to different physical, chemical, and environmental factors [6,9].…”

Section: Introductionmentioning

confidence: 99%

Microplastic Quantification in Aquatic Birds: Biomonitoring the Environmental Health of the Panjkora River Freshwater Ecosystem in Pakistan

Bilal,

Yaqub,

Hassan

et al. 2023

Toxics

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Microplastic pollution has become a global concern, with potential negative impacts on various ecosystems and wildlife species. Among these species, ducks (Anas platyrhynchos) are particularly vulnerable due to their feeding habits and proximity to aquatic environments contaminated with microplastics. The current study was designed to monitor microplastic (MP) pollutants in the freshwater ecosystem of the Panjkora River, Lower Dir, Pakistan. A total of twenty (20) duck samples were brought up for four months and 13 days on the banks of the river, with no food intake outside the river. When they reached an average weight of 2.41 ± 0.53 kg, all samples were sacrificed, dissected, and transported in an ice box to the laboratory for further analysis. After sample preparation, such as digestion with 10% potassium hydroxide (KOH), density separation, filtration, and identification, the MP content was counted. A total of 2033 MP particles were recovered from 20 ducks with a mean value of 44.6 ± 15.8 MPs/crop and 57.05 ± 18.7 MPs/gizzard. MPs detected in surface water were 31.2 ± 15.5 MPs/L. The major shape types of MPs recovered were fragments in crop (67%) and gizzard (58%) samples and fibers in surface water (56%). Other types of particles recovered were fibers, sheets, and foams. The majority of these detected MP particles were in the size range of 300–500 µm (63%) in crops, and 50–150 µm (55%) in gizzards, while in water samples the most detected particles were in the range of 150–300 µm (61%). Chemical characterization by FTIR found six types of polymers. Low-density polyethylene (LDPE) had the greatest polymer detection rate (39.2%), followed by polyvinyl chloride (PVC) (28.3%), high-density polyethylene (HDPE) (22.7%), polystyrene (6.6%), co-polymerized polypropylene (2.5%), and polypropylene homopolymer (0.7%). This study investigated the presence of microplastics in the crops and gizzards of ducks, as well as in river surface water. The results revealed the significant and pervasive occurrence of microplastics in both the avian digestive systems and the surrounding water environment. These findings highlight the potential threat of microplastic pollution to wildlife and ecosystems, emphasizing the need for further research and effective mitigation strategies to address this pressing environmental concern.

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Characteristics of microplastics in sediment of the Vaal River, South Africa: implications on bioavailability and toxicity

Saad,

Ndlovu,

Ramaremisa

et al. 2023

Int. J. Environ. Sci. Technol.

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The aim of this study was to examine the physical characteristics and chemical composition of microplastics in sediments of the Vaal River, South Africa. Microplastics were detected in all samples, with abundance ranging from 29.12 to 1095.89 particles/kg dw. The physical identification of microplastics revealed dominance of small-sized particles of less than 0.5 mm, which accounted for 31.75% of the total microplastics detected in all samples. Fragments and fibres were significantly abundant compared to pellets, representing 63% and 35%, respectively. Microplastics were observed in different colours, among which blue, white and green were the most dominant. Raman analyses of microplastics showed the presence of high density polyethylene, low density polyethylene, polyurethane foam, polypropylene, polyethylene co-vinyl acetate, and poly(ethylene-co-1-hexene). Additionally, two pigments (vine black and smalt), one dye (saffron), three minerals (orthoclase, carbon, and microcline), and one additive (cis-13-docosanol) were also identified. The dominance of fragments and fibres, with the clear signs of fragmentation implied that microplastics in the Vaal River are mostly from secondary sources. The study reported the first data on microplastic pollution and characteristics in sediments of the Vaal River, thus, providing a benchmark and reference platform for relevant formulation and decision-making regarding this essential water source.

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Rethinking the relevance of microplastics as vector for anthropogenic contaminants: Adsorption of toxicants to microplastics during exposure in a highly polluted stream - Analytical quantification and assessment of toxic effects in zebrafish (Danio rerio)

Cited by 20 publications

References 131 publications

Water Analysis: Emerging Contaminants and Current Issues

Water Analysis: Emerging Contaminants and Current Issues

Microplastic Quantification in Aquatic Birds: Biomonitoring the Environmental Health of the Panjkora River Freshwater Ecosystem in Pakistan

Characteristics of microplastics in sediment of the Vaal River, South Africa: implications on bioavailability and toxicity

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