Dynamic passive sampling of hydrophobic organic compounds in surface seawater along the South Atlantic Ocean east-to-west transect and across the Black Sea

Sobotka, Jaromír; Lammel, Gerhard; Slobodnı́k, Jaroslav; Schink, Anne; Prokeš, Roman; Vrana, Branislav

doi:10.1016/j.marpolbul.2021.112375

Cited by 14 publications

(3 citation statements)

References 57 publications

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“…While BDE209 can potentially be an additive to the plastic fragments, this is not the case for CB153 and fluoranthene. It is worth noting for this data set that fluoranthene concentrations observed in plastic debris (1–1000 ng g –1 plastic) are consistent with realistic values for log K pw of 4–5 and freely dissolved fluoranthene concentrations of 0.1–10 ng L –1 in waters of marine environments in case of equilibrium distribution between water and plastic. , …”

Section: Resultssupporting

confidence: 79%

“…It is worth noting for this data set that fluoranthene concentrations observed in plastic debris (1−1000 ng g −1 plastic) are consistent with realistic values for log K pw of 4−5 and freely dissolved fluoranthene concentrations of 0.1−10 ng L −1 in waters of marine environments in case of equilibrium distribution between water and plastic. 34,35 Many procedures and techniques are available to evaluate this speciation. Passive sampling can be applied to water, sediment, and sludge to determine C CAD-free or polymer concentration at equilibrium with the water phase.…”

Section: Resultsmentioning

confidence: 99%

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Examining the Relevance of the Microplastic-Associated Additive Fraction in Environmental Compartments

et al. 2022

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Plastic contamination is ubiquitous in the environment and has been related to increasing global plastic usage since the 1950s. Considering the omnipresence of additives in plastics, the risk posed by this contamination is related not only to the physical effects of plastic particles but also to their additive content. Until now, most routine environmental monitoring programs involving additives have not considered the presence of these additives still associated with the plastic they were added to during their production. Understanding environmental additive speciation is essential to address the risk they pose through their bioavailability and plastic-associated transport. Here, we present and apply a theoretical framework for sampling and analytical procedures to characterize the speciation of hydrophobic nonionized additives in environmental compartments. We show that this simple framework can help develop sampling and sample treatment procedures to quantify plastic-associated additives and understand additive distribution between plastics and organic matter. When applied to concrete cases, internal consistency checks with the model allowed for identifying plastic-associated additives in a sample. In other cases, the plastic-organic carbon ratio and additive concentration in the matrix are key factors affecting the ability to identify plastic-associated additives. The effect of additive dissipation through diffusion out of plastic particles is also considered.

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Section: Resultssupporting

confidence: 79%

Section: Resultsmentioning

confidence: 99%

Examining the Relevance of the Microplastic-Associated Additive Fraction in Environmental Compartments

et al. 2022

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“…The nearshore zone of the maximum loading values is under the influence of fresh water inflow from all the rivers in the catchment area of the north-western Black Sea region. The period of spring flood is usually accompanied by the highest values of run-off and the maximum riverine transport of nutrients as a result (Sobotka et al 2021). Fig.…”

Section: Independent Component Ic1mentioning

confidence: 99%

Independent components of spatial-temporal structure of chlorophyll a patterns in the upper layer of the north-western shelf of the Black Sea

Kyrylenko¹,

Evstigneev²

2021

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In the present study, the results of independent component decomposition of satellite-derived chlorophyll a (Chla) patterns for the north-western part of the Black Sea are presented. The study has been carried out on the basis of the DINEOF-reconstructed dataset of 8-day average log-transformed Chla (alChla) patterns for 1997-2016. The alChla patterns were decomposed into six independent components of its spatio-temporal variability in the north-western shelf of the Black Sea. The independent components reflect the spatial distribution of alChla anomalies which are likely to be formed under the influence of sea circulation factors driven by wind. The paper presents the results of the analysis of the intra-annual variability of independent components. The interpretation of the patterns of intra-annual independent components variability is given, taking into account the seasonal variability of the wind factor, the flow of the Danube, the Dnieper and Southern Bug rivers and the fact of modulation of independent components dynamics by seasonal phytoplankton succession.

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Ecological realism and rigor in the study of plant-plant allelopathic interactions

et al. 2023

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Dynamic passive sampling of hydrophobic organic compounds in surface seawater along the South Atlantic Ocean east-to-west transect and across the Black Sea

Cited by 14 publications

References 57 publications

Examining the Relevance of the Microplastic-Associated Additive Fraction in Environmental Compartments

Examining the Relevance of the Microplastic-Associated Additive Fraction in Environmental Compartments

Independent components of spatial-temporal structure of chlorophyll a patterns in the upper layer of the north-western shelf of the Black Sea

Ecological realism and rigor in the study of plant-plant allelopathic interactions

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