Bioaccumulation of Persistent Halogenated Organic Pollutants in Insects: Common Alterations to the Pollutant Pattern for Different Insects during Metamorphosis

Liu, Yu; Luo, Xiao-Jun; Huang, Li-Qian; Yu, Lehuan; Mai, Bixian

doi:10.1021/acs.est.8b00616

Cited by 36 publications

(29 citation statements)

References 48 publications

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“…The statistical evidence for a link of fluctuating asymmetry and PBT data from pooled individuals in bumblebees and ants from high‐elevation habitats is a step toward an established methodology for the examination of effects of PBTs on insects in field studies. Our results are supported by similar cases with a successful use of pooled samples to gain insights into PBT characteristics in insects (Liu et al, 2018). In contrast to laboratory studies on PBTs relying on specifically selected concentrations (Bueno et al, 2013; Mommaerts et al, 2011), field studies will thus be possible to capture potential effects caused by PBTs at concentrations occurring in the natural habitat of insects.…”

Section: Discussionsupporting

confidence: 88%

Persistent, Bioaccumulative, and Toxic Chemicals in Wild Alpine Insects: A Methodological Case Study

Hierlmeier

Struck

Krapf

et al. 2022

Enviro Toxic and Chemistry

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With their high persistence in the environment and their potential for long-range atmospheric transport, persistent, bioaccumulative, and toxic chemicals (PBTs) may be among the numerous anthropogenic threats to insect populations worldwide. The effects of PBTs on insects have been investigated in the laboratory, but topical field studies are scarce. A reason might be the multiple challenges faced by PBT-related field studies on wild insects. We studied two species of bumblebees (Bombus spp.) and of ants (Formica spp.) in two high-elevation locations in the Austrian and German Alps to tackle two of these challenges. First, PBTs occur in minuscule concentrations compared with other substances in the environment. Therefore, the practicability of body burden data from pooled individuals was tested. Second, fitness proxies like fecundity, which typically are endpoints for chemical toxicity, are difficult to quantify in the field. Hence, fluctuating asymmetry of bumblebee wings and ant heads was tested as an alternative endpoint. To exclude the possibility that fluctuating asymmetry was caused by genetic stressors, inbreeding levels were estimated using population-genetic markers, and their relationships to fluctuating asymmetry in the same individuals were assessed. We successfully quantified polychlorinated biphenyls and Hg as PBTs using the pooled samples and found PBT data from pooled individuals useful, in that significant correlations to fluctuating asymmetry were identified in bumblebees and ants. This finding confirmed the potential of fluctuating asymmetry to indicate PBT effects in wild insects. Inbreeding did not interfere with PBT links to fluctuating asymmetry in any instance. Our findings contribute to the development of a quantitative methodological framework for investigating the effects of persistent environmental chemicals on wild insects.

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Section: Discussionsupporting

confidence: 88%

Persistent, Bioaccumulative, and Toxic Chemicals in Wild Alpine Insects: A Methodological Case Study

Hierlmeier

Struck

Krapf

et al. 2022

Enviro Toxic and Chemistry

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“…The gradient in δ 13 C suggests that a higher degree of aquatic signal in terrestrial consumers (Figure C) results in higher PFOS concentration. Isotope ratios of nitrogen and carbon between the aquatic and riparian system were well separated, which showed the usefulness of these isotopes for this research topic. ,,, …”

Section: Resultsmentioning

confidence: 75%

“…Isotope ratios of nitrogen and carbon between the aquatic and riparian system were well separated, which showed the usefulness of these isotopes for this research topic. 28,31,33,52 BAFs of PFASs in the Aquatic Food Web of the Pond. BAFs could not be determined for sample 12 and 36 and for 11 PFASs (PFBA, PFPeA, PFHxA, PFDoDA, PFTrDA, PFTDA, PFHxDA, PFOcDA, PFDoDS, 4:2 FTSA, and 8:2 FTSA) because their concentrations were below the MDL in at least one of the media.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

Per- and Polyfluoroalkyl-Contaminated Freshwater Impacts Adjacent Riparian Food Webs

Koch

Jonsson

Yeung

et al. 2020

Environ. Sci. Technol.

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The occurrence of per-and polyfluoroalkyl substances (PFASs) in aquatic ecosystems is a global concern because of their persistence, potential bioaccumulation, and toxicity. In this study, we investigated a PFAS-contaminated pond in Sweden to assess the cross-boundary transfer of PFASs from the aquatic environment to the riparian zone via emergent aquatic insects. Aquatic and terrestrial invertebrates, surface water, sediments, soils, and plants were analyzed for 24 PFASs including branched isomers. Stable isotope analysis of carbon and nitrogen was performed to elucidate the importance of diet and trophic position for PFAS uptake. We present the first evidence that PFASs can propagate to the riparian food web via aquatic emergent insects. Elevated Σ 24 PFAS concentrations were found in aquatic insect larvae, such as dragon-and damselflies, ranging from 1100 to 4600 ng g −1 dry weight (dw), and remained high in emerged adults (120−3500 ng g −1 dw), indicating exposure risks for top predators that prey in riparian zones. In terrestrial invertebrate consumers, PFAS concentrations increased with the degree of aquatic-based diet and at higher trophic levels. Furthermore, stable isotope data together with calculated bioaccumulation factors indicated that bioconcentration of PFASs was the major pathway of exposure in the aquatic food web and bioaccumulation in the riparian food web.

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“…Bioamplification is an important process which regulates exposure and contaminant flux in food webs because larvae and adult insects or amphibians are diet of different predators. The impacts of metamorphosis on contaminant in insects or amphibians have been reported for some aromatic organic compounds including organochlorine pesticides (OCPs), polycyclic aromatic hydrocarbons (PAHs), polychlorinated biphenyls (PCBs), polybrominated diphenyl ethers (PBDEs), and alternative halogenated flame retardants (HFRs). − The metamorphosis-associated bioamplification factors of these chemicals were correlated to their log K OW in previous studies. ,, However, information on metamorphosis-associated CP bioamplification in insects and amphibians remains unavailable, and thus it is not possible to know whether similar correlations also exist for CPs (aliphatic compounds).…”

Section: Introductionmentioning

confidence: 99%

Trophic Magnification of Short- and Medium-Chain Chlorinated Paraffins in Terrestrial Food Webs and Their Bioamplification in Insects and Amphibians during Metamorphosis

Liu

Luo

Zeng

et al. 2020

Environ. Sci. Technol.

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Studies on the biomagnification of short-and medium-chain chlorinated paraffins (SCCPs and MCCPs) in terrestrial ecosystems and their bioamplification during metamorphosis in insects and amphibians are scarce. Therefore, this study sought to characterize the occurrence and trophic dynamics of SCCPs and MCCPs in an insect-dominated terrestrial food web in an e-waste recycling site in South China. Median ∑SCCPs and ∑MCCPs concentrations in the organisms ranged from 2200 to 34 000 ng/g lipid weight and from 990 to 19 000 ng/g lipid weight, respectively. The homologue profiles of CPs in the predators were distinct from those in insects, presenting more short chain-high chlorinated congeners (C 10−12 Cl 8−10 ). The trophic magnification factors (TMFs) of ∑SCCPs and ∑MCCPs were 2.08 and 2.45, respectively, indicating biomagnification in the terrestrial food web. A significant positive relationship between the TMFs and octanol-air partition coefficients was observed. TMFs were also positively correlated with chlorination degree but did not correlate with carbon chain length. Nonlinear correlations between metamorphosis-associated bioamplification and the octanol−water partition coefficients of SCCPs and MCCPs were observed for insects, whereas negative linear correlations were observed for amphibians, which suggested species-specific alterations to the chemicals during metamorphosis.

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Bioaccumulation of Persistent Halogenated Organic Pollutants in Insects: Common Alterations to the Pollutant Pattern for Different Insects during Metamorphosis

Cited by 36 publications

References 48 publications

Persistent, Bioaccumulative, and Toxic Chemicals in Wild Alpine Insects: A Methodological Case Study

Persistent, Bioaccumulative, and Toxic Chemicals in Wild Alpine Insects: A Methodological Case Study

Per- and Polyfluoroalkyl-Contaminated Freshwater Impacts Adjacent Riparian Food Webs

Trophic Magnification of Short- and Medium-Chain Chlorinated Paraffins in Terrestrial Food Webs and Their Bioamplification in Insects and Amphibians during Metamorphosis

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