Dibutyl phthalate release from polyvinyl chloride microplastics: Influence of plastic properties and environmental factors

Yan, Yuanyuan; Zhu, Fengxiao; Zhu, Changyin; Chen, Zhanghao; Liu, Shaochong; Wang, Chao; Gu, Cheng

doi:10.1016/j.watres.2021.117597

Cited by 144 publications

(61 citation statements)

References 52 publications

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“…Plastic cracks share characteristics similar to other embrittled materials but bear more information with respect to the release of contaminants. Most plastic products are composites, and additives (e.g., phthalate esters) are used to improve the performance of these products. , The specific crack and secondary patterns are ideal indicators and fingerprints for composites with additives. For example, bridge layer structures and linear cracks generally occur in fiber-enforced composites .…”

Section: Introductionmentioning

confidence: 99%

Crack Patterns of Environmental Plastic Fragments

Deng

Zheng

et al. 2022

Environ. Sci. Technol.

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Secondary microplastics usually come from the breakdown of larger plastics due to weathering and environmental stress cracking of plastic wastes. In the present study, 5013 plastic fragments were collected from coastal beaches, estuary dikes, and lake banks in China. The fragment sizes ranged from 0.2 to 17.1 cm, and the dominant polymers were polypropylene and polyethylene. Cracks were observed on the surfaces of 49–56% of the fragments. Based on the extracted crack images, we proposed a general crack pattern system including four crack types with specific definitions, abbreviations, and symbols. The two-dimensional spectral analysis of the cracks suggests that the first three patterns showed good regularity and supported the rationality of the pattern system. Some crack metrics (e.g., line density) were closely correlated with the carbonyl index and additives (e.g., phthalate esters) of fragments. For crack investigation in field, we proposed a succinct protocol, in which five crack ranks were established to directly characterize the degree of cracking based on the line density values. The system was successfully applied to distinguish the differences in crack features at two representative sites, which indicates that crack pattern is a useful tool to describe the morphological changes of plastic surfaces in the environment.

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Section: Introductionmentioning

confidence: 99%

Crack Patterns of Environmental Plastic Fragments

Deng

Zheng

et al. 2022

Environ. Sci. Technol.

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“…. From a broader standpoint, the presence of increasing levels of DOC in aqueous solution favours the transfer of hydrophobic organic compounds from polymers 63,64 and nonaqueous phase liquids 65 to water. Finally, lower solubility of polar drugs and enhanced solubility of nonpolar drugs was observed in the fed state compared to the fasted state in simulated human intestinal fluids 66 .…”

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confidence: 99%

Bioaccessibility of organic compounds associated with tire particles using a fish in vitro digestive model: solubilization kinetics and effects of food co-ingestion

Masset

Ferrari²,

Dudefoi

et al. 2022

Preprint

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Tire and road wear particles (TRWP) account for an important part of the polymer particles released into the environment. There are scientific knowledge gaps as to the potential bioaccessibility of chemicals associated with TRWP to aquatic organisms. This study investigated the solubilization and bioaccessibility of seven of the most widely used tire-associated organic chemicals and four of their degradation products from cryogenically milled tire tread (CMTT) into fish digestive fluids using an in vitro digestion model based on Oncorhynchus mykiss. Our results showed that 0.06% to 44.1% of the selected compounds were rapidly solubilized into simulated gastric and intestinal fluids within a typical gut transit time for fish (3 h in gastric and 24 h in intestinal fluids). The environmentally realistic scenario of coingestion of CMTT and fish prey was explored using ground Gammarus pulex. Coingestion caused compound-specific changes in solubilization, either increasing or decreasing the compounds’ bioaccessibility in simulated gut fluids compared to CMTT alone. Our results emphasize that tire-associated compounds become accessible in a digestive milieu and should be studied further with respect to their bioaccumulation and toxicological effects upon passage of intestinal epithelial cells.

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“…The competition between OM and pollutants for the sorption sites led to a decrease in the pollutant sorption capacity (Lara et al, 2021; Munoz et al, 2021). The presence of dissolved organic matter (DOM) can even induce release of additives such as phthalates initially present in the plastic matrix by increasing their solubility in water (Yan et al, 2021).…”

Section: Interactions Between Organic Pollutants and Microplastics In...mentioning

confidence: 99%

Transport of persistent organic pollutants: Another effect of microplastic pollution?

Gateuille

Naffrechoux

2022

WIREs Water

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Over the past decade, the number of studies examining the presence and effects of microplastics in the environment has drastically increased. Works seeking to identify these particles have proven beyond doubt that microplastics constitute a generalized pollution affecting all environmental compartments, from inside air to arctic snows. Studies on their potential ecotoxicological impacts were more nuanced but many have shown deleterious effects when these microplastics were associated with persistent organic pollutants. This primer mainly focuses on POP sorption and transport by microplastics in the aquatic environment and the possible toxic effects that result from it. Indeed, the associations between microplastics and persistent organic pollutants are very common in the environment. If the mechanisms of interactions are well known, they depend on many factors and their significance in the environment can be very variable in time and space. Indeed, these interactions depend on both the plastic particle (polymer type, crystallinity, particle size, shape, specific area, and functional groups/ polarity) and the pollutant (hydrophobicity, functional groups) but also environmental factors (microorganism population, salinity/ionic strength, pH, dissolved organic matter concentration, and temperature). Changes in the interactions between pollutants and microplastics can result in pollutant release in the aquatic environment and potential toxic effects. However, apart from specific situations, the role of microplastics as local source of exogenous molecules (PAHs, PCBs, etc.) is rarely significant because the limited amounts of involved pollutants. It is much less negligible for endogenous chemicals that enter into the initial composition of the plastic (phthalates, biocides, etc.).

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Dibutyl phthalate release from polyvinyl chloride microplastics: Influence of plastic properties and environmental factors

Cited by 144 publications

References 52 publications

Crack Patterns of Environmental Plastic Fragments

Crack Patterns of Environmental Plastic Fragments

Bioaccessibility of organic compounds associated with tire particles using a fish in vitro digestive model: solubilization kinetics and effects of food co-ingestion

Transport of persistent organic pollutants: Another effect of microplastic pollution?

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