Concentrations of halogenated natural products versus PCB 153 in bivalves from the North and Baltic Seas

Hauler, Carolin; Rimkus, Gerhard; Risacher, Célia; Knölker, Hans‐Joachim; Vetter, Walter

doi:10.1016/j.scitotenv.2014.05.053

Cited by 17 publications

(28 citation statements)

References 56 publications

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“…Marine biota is also reported to show the presence of naturally occurring organic brominated compounds e.g. some brominated and mixed halogenated dioxins, brominated pyrroles and indoles (Haraguchi et al, 2009;Unger et al, 2009;Hauler et al, 2014).…”

Section: Discussionmentioning

confidence: 99%

Bromine content and brominated flame retardants in food and animal feed from the UK

et al. 2016

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Section: Discussionmentioning

confidence: 99%

Bromine content and brominated flame retardants in food and animal feed from the UK

et al. 2016

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“…27 By contrast, several HNPs have been detected in marine species such as cetaceans, 28−30 fish, 31 birds, 32 and mollusks. 33 This proves that these compounds have bioaccumulation capacity, and should be included in the studies of bioaccumulation behaviors of other halogenated compounds that occur in the environment. Some examples of these HNPs are (1R,2S,4R,5R,1′E)-2-bromo-1-bromomethyl-1,4-dichloro-5-(2′-chloroethenyl)-5-methylcyclohexane (MHC-1), 2,7-dibromo-4a-bromomethyl-1,1-dimethyl-2,3,4,4a,9,9a-hexahydro-1H-xanthene (TriBHD), 2,5,7-tribromo-4a-bromomethyl-1,1-dimethyl-2,3,4,4a,9,9a-hexahydro-1H-xanthene (TetraBHD), methoxylated PBDEs (MeO-BDEs), 2,3,3′,4,4′,5,5′-heptachloro-1′-methyl-1,2′-bipyrrole (Q1), and other polyhalogenated 1′-methyl-1,2′-bipyrroles related with Q1 but with different halogenation pattern which include substitution of chlorine by bromine (PMBPs).…”

Section: ■ Introductionmentioning

confidence: 91%

Halogenated Natural Products in Dolphins: Brain–Blubber Distribution and Comparison with Halogenated Flame Retardants

Barón

Hauler

Gallistl

et al. 2015

Environ. Sci. Technol.

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Halogenated natural products (MHC-1, TriBHD, TetraBHD, MeO-PBDEs, Q1, and related PMBPs) and halogenated flame retardants (PBDEs, HBB, Dec 602, Dec 603, and DP) in blubber and brain are reported from five Alboran Sea delphinids (Spain). Both HNPs and HFRs were detected in brain, implying that they are able to surpass the blood-brain barrier and reach the brain, which represents a new finding for some compounds, such as Q1 and PMBPs, MHC-1, TriBHD, TetraBHD, or Dec 603. Moreover, some compounds (TetraBHD, BDE-153, or HBB) presented higher levels in brain than in blubber. This study evidence the high concentrations of HNPs in the marine environment, especially in top predators. It shows the importance of further monitoring these natural compounds and evaluating their potential toxicity, when most studies focus on anthropogenic compounds only. While no bioaccumulation was found for ∑HNPs, ∑HFRs increased significantly with body size for both common and striped dolphins. Studies evaluating BBB permeation mechanisms of these compounds together with their potential neurotoxic effects in dolphins are recommended.

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“…the red seaweed Plocamium cartilagineum (Wu et al 2020a). By contrast, MHC-1 concentrations in mussels at Hörnumtief (Germany), which is only~60 km from Heligoland, were only~1% of those at Heligoland (Hauler et al 2014). Hence, HNP concentrations in forage fish with smaller migration range would be more affected by HNP hotspots than in large pelagic fish with wider migration range ("dilution effect").…”

Section: Resultsmentioning

confidence: 99%

“…One reason could be variations in the dietary intake of HNPs (indicative of hotspots) combined with a non-equilibrium partitioning between the two tissues. Especially, in the case of HNPs, it is known that concentrations can strongly vary in low trophic biota (prey) within short distances (Hauler et al 2014 ; Barón et al 2015 ; Estrella et al 2018 ). By contrast, R L/L+M values for PCB 153 and p,p’ -DDE were ≤0.5 (Table 2 ).…”

Section: Resultsmentioning

confidence: 99%

“…1j, k )) in the muscle and liver of Seychelles swordfish. Since HNP levels may vary strongly within short distances (Hauler et al 2014 ; Malmvärn et al 2005 ; Vetter et al 2009 ) and across different species (Wu et al 2019 , 2020b ), we then compared HNP and POP concentrations in swordfish with those in individual samples of other fish species from the same habitat. Samples analysed included three tropical tuna species (yellowfin tuna, bigeye tuna and skipjack tuna) and one newborn silky shark.…”

Section: Introductionmentioning

confidence: 99%

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High levels of halogenated natural products in large pelagic fish from the Western Indian Ocean

Munschy

Aminot

et al. 2021

Environ Sci Pollut Res

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Concentrations, profiles and muscle-liver distribution of halogenated natural products (HNPs) and anthropogenic persistent organic pollutants (POPs) were investigated in five large pelagic fish species and one smaller planktivore fish species from the Western Indian Ocean. Analysis of swordfish muscle from the Seychelles revealed the predominance of HNPs, with the highest concentrations found for 2′-methoxy-2,3′,4,5′- tetraBDE (2′-MeO-BDE 68 or BC-2), 6-methoxy-2,2′,4,4′- tetraBDE (6-MeO-BDE 47 or BC-3) and 2,3,3′,4,4′,5,5′-heptachloro-1′-methyl-1,2′-bipyrrole (Q1), along with varied contributions of further HNPs. The mean concentration of ∑HNPs (330 ng/g lw) was one or two orders of magnitude higher than ∑DDTs (60 ng/g lw) and ∑PCBs (6.8 ng/g lw). HNPs (BC-2, BC-3 and Q1) were also predominant in individual samples of three tropical tuna species from the Seychelles and from other regions of the Western Indian Ocean (Mozambique Channel, off Somalia and Chagos Archipelago). Non-targeted gas chromatography coupled with electron capture negative ion mass spectrometry operated in the selected ion monitoring mode (GC/ECNI-MS-SIM) analysis of one swordfish sample indicated low abundance of rarely reported HNPs (three hexachloro-1′-methyl-1,2′-bipyrrole (Cl6-MBP) isomers and pentabromo-1,1′-dimethyl-2,2′-bipyrroles (Br5-DBP)) but no further abundant unscreened polyhalogenated compounds.

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Concentrations of halogenated natural products versus PCB 153 in bivalves from the North and Baltic Seas

Cited by 17 publications

References 56 publications

Bromine content and brominated flame retardants in food and animal feed from the UK

Bromine content and brominated flame retardants in food and animal feed from the UK

Halogenated Natural Products in Dolphins: Brain–Blubber Distribution and Comparison with Halogenated Flame Retardants

High levels of halogenated natural products in large pelagic fish from the Western Indian Ocean

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