Screening of organic flame retardants in Swedish river water

Legacy (i.e. polybrominated diphenyl ethers, PBDEs, and hexabromocyclododecane, HBCDD) and alternative halogenated flame retardants (HFRs) were analyzed in 31 whole fish samples from Lake Geneva in 2018. Two fish species, namely the burbot (Lota lota) and the roach (Rutilus rutilus) were selected, hypothetically representing different habitats, feeding behaviors and different metabolic capacities. Roach (N = 20) and burbot (N = 11) displayed similar size and mass, but the latter species was overall leaner than the former. The sum of individual PBDE concentrations (0.54 -9.86 ng g -1 wet weight -ww) was similar in both species, but the respective molecular profiles suggested contrasted metabolic capacities. HBCDD sum of isomer concentrations ranged from non-detected to 3.477 ng g -1 (ww), also similar in both species. Both PBDEs and HBCDD levels were far below the threshold that indicates a risk to fish predators. Referring to previous surveys, which involved a wider range of species, PBDE concentrations have declined or are stable. HBCDD concentrations remained low, despite the PBDE ban, which could have fostered the consumption of other HFRs. The occurrence of alternative HFRs was also low for most compounds analyzed. Only dechloranes and decabromodiphenyl ethane (DBDPE) had detection rates above 50 %. Dechloranes spanned a concentration range between 5 and 10 times the quantification limits (0.002 to 0.005 ng g -1 wet weight), lower than DBDPE (<0.005 to 2.89 ng g -1 wet weight).Quality standards targeting biota are currently missing for these emerging chemicals.

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“…Demand for FRs remains high, and the latest studies posit a diversification of the FRs brought to market (Dreyer et al 2019;Gustavsson et al 2018…”

Section: Discussionmentioning

confidence: 99%

“…Main characteristics of HFRs selected for this study (acronyms following(Bergman et al 2012) -Log Kow values were found in(Gustavsson et al 2018) or PubChem (https://pubchem.ncbi.nlm.nih.gov/ )3.1.2 Hexabromocyclododecane (HBCDD)…”

mentioning

confidence: 99%

Legacy and alternative halogenated flame retardants in Lake Geneva fish

Babut

Marchand

Vénisseau

et al. 2020

Environ Sci Pollut Res

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“…49 Increased OPE emissions are associated with urban areas due to higher human activity and population density. 46 Mimico Creek watershed contains a large network of roads and busy highways, and traffic has been shown to be a source of OPEs via emissions from vehicle ventilation systems or leakage of motor oils and lubricants, 50 which can then be washed out of the atmosphere and washed off urban surfaces during precipitation. In addition, the airport located in the Mimico watershed is a plausible source of OPEs.…”

Section: Resultsmentioning

confidence: 99%

Precipitation-induced transport and phase partitioning of organophosphate esters (OPEs) in urban and rural watersheds

Awonaike

Lei

Wania

2021

Environ. Sci.: Water Res. Technol.

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“…In the same year, Jakob et al screened a series of residual OPFRs from 23 river water samples covering the entire latitude range in Sweden. In general, the average content of OPFRs was 56 ng/L [139].…”

Section: Detection Of Organophosphate Flame Retardantsmentioning

confidence: 99%

A Review of a Class of Emerging Contaminants: The Classification, Distribution, Intensity of Consumption, Synthesis Routes, Environmental Effects and Expectation of Pollution Abatement to Organophosphate Flame Retardants (OPFRs)

Yang

Zhao

et al. 2019

IJMS

173

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Organophosphate flame retardants (OPFRs) have been detected in various environmental matrices and have been identified as emerging contaminants (EC). Given the adverse influence of OPFRs, many researchers have focused on the absorption, bioaccumulation, metabolism, and internal exposure processes of OPFRs in animals and humans. This paper first reviews the evolution of various types of flame retardants (FRs) and the environmental pollution of OPFRs, the different absorption pathways of OPFRs by animals and humans (such as inhalation, ingestion, skin absorption and absorption), and then summarizes the environmental impacts of OPFRs, including their biological toxicity, bioaccumulation, persistence, migration, endocrine disruption and carcinogenicity. Based on limited available data and results, this study also summarizes the bioaccumulation and biomagnification potential of OPFRs in different types of biological and food nets. In addition, a new governance idea for the replacement of existing OPFRs from the source is proposed, seeking environmentally friendly alternatives to OPFRs in order to provide new ideas and theoretical guidance for the removal of OPFRs.

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Screening of organic flame retardants in Swedish river water

Cited by 81 publications

References 44 publications

Legacy and alternative halogenated flame retardants in Lake Geneva fish

Legacy and alternative halogenated flame retardants in Lake Geneva fish

Precipitation-induced transport and phase partitioning of organophosphate esters (OPEs) in urban and rural watersheds

A Review of a Class of Emerging Contaminants: The Classification, Distribution, Intensity of Consumption, Synthesis Routes, Environmental Effects and Expectation of Pollution Abatement to Organophosphate Flame Retardants (OPFRs)

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