Evaluating bioaccumulation potential of cyclic and linear volatile methylsiloxanes in aquatic and terrestrial species: a comprehensive analysis using the Bioaccumulation Assessment Tool.
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| Title: | Evaluating bioaccumulation potential of cyclic and linear volatile methylsiloxanes in aquatic and terrestrial species: a comprehensive analysis using the Bioaccumulation Assessment Tool. |
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| Authors: | Kim, Jaeshin1 (AUTHOR) jaeshin.kim@dow.com, McNett, Debra A1 (AUTHOR), Belkhiria, Sami2 (AUTHOR), Plotzke, Kathleen P1 (AUTHOR) |
| Source: | Integrated Environmental Assessment & Management. May2026, Vol. 22 Issue 3, p689-701. 13p. |
| Subject Terms: | *Bioaccumulation, *Species, *Aquatic animals, *Bioconcentration, Organosilicon compounds, Biomagnification |
| Abstract: | A comprehensive analysis of the bioaccumulation of three cyclic (namely, D4, D5, and D6) and five linear (namely, L2, L3, L4, L5, and L6) volatile methylsiloxanes (VMS) in biota was conducted by reviewing 50 published articles and laboratory reports on aquatic (82%) and terrestrial (18%) species. A total of 178 bioaccumulation values were evaluated employing a quantitative weight-of-evidence (qWoE) approach provided by the Bioaccumulation Assessment Tool. Considerable variability of bioconcentration factor (BCF) and bioaccumulation factor (BAF) values was observed for VMS in aquatic organisms, which ranged from below to above their respective regulatory threshold values. The frequency of evidence for nonbioaccumulation (i.e., BCF or BAF <2,000) was ≥50% for D6, L2, L5, and L6. Conversely, laboratory biomagnification factor (BMF) values were generally ≥71% less than 1, indicating low bioaccumulation potential through dietary uptake. Field BMFs displayed more variability but still suggested a low bioaccumulation potential. Despite the majority (≥65%) of trophic magnification factors (TMFs) in aquatic food webs being below 1, the broad range of TMF values for all VMS examined indicates potential uncertainties introduced by environmental factors in the target environments (e.g., chemical exposure gradient) and sampling bias. Overall, lines of evidence (≥71%) suggest that cyclic and linear VMS generally do not bioaccumulate in aquatic species, with dietary uptake being the primary pathway. For terrestrial species, primarily rats, predicted and field BMFs were less than 1 at 37 °C, primarily via respiratory elimination. Field TMFs for terrestrial food webs, including invertebrates and various bird species with body temperatures of 18 and 40 °C, respectively, were sourced from a single study, where D4 demonstrated trophic dilution, while D5 and D6 generally did not biomagnify in this terrestrial food web. Key points The weight of evidence approach suggests that volatile methylsiloxanes (VMS) generally do not bioaccumulate in aquatic and terrestrial species, with dietary uptake being the primary pathway. Bioaccumulation assessment of volatile methylsiloxanes (VMS) reveals highly variable bioconcentration factor (BCF) and bioaccumulation factor (BAF) values in aquatic species influenced presumably by several factors including species characteristics, uptake pathways, and analytical uncertainties. [ABSTRACT FROM AUTHOR] |
| Copyright of Integrated Environmental Assessment & Management is the property of Oxford University Press / USA and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | GreenFILE |
| FullText | Text: Availability: 0 |
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| Header | DbId: 8gh DbLabel: GreenFILE An: 195127687 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Evaluating bioaccumulation potential of cyclic and linear volatile methylsiloxanes in aquatic and terrestrial species: a comprehensive analysis using the Bioaccumulation Assessment Tool. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Kim%2C+Jaeshin%22">Kim, Jaeshin</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> jaeshin.kim@dow.com</i><br /><searchLink fieldCode="AR" term="%22McNett%2C+Debra+A%22">McNett, Debra A</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Belkhiria%2C+Sami%22">Belkhiria, Sami</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Plotzke%2C+Kathleen+P%22">Plotzke, Kathleen P</searchLink><relatesTo>1</relatesTo> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Integrated+Environmental+Assessment+%26+Management%22">Integrated Environmental Assessment & Management</searchLink>. May2026, Vol. 22 Issue 3, p689-701. 13p. – Name: Subject Label: Subject Terms Group: Su Data: *<searchLink fieldCode="DE" term="%22Bioaccumulation%22">Bioaccumulation</searchLink><br />*<searchLink fieldCode="DE" term="%22Species%22">Species</searchLink><br />*<searchLink fieldCode="DE" term="%22Aquatic+animals%22">Aquatic animals</searchLink><br />*<searchLink fieldCode="DE" term="%22Bioconcentration%22">Bioconcentration</searchLink><br /><searchLink fieldCode="DE" term="%22Organosilicon+compounds%22">Organosilicon compounds</searchLink><br /><searchLink fieldCode="DE" term="%22Biomagnification%22">Biomagnification</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: A comprehensive analysis of the bioaccumulation of three cyclic (namely, D4, D5, and D6) and five linear (namely, L2, L3, L4, L5, and L6) volatile methylsiloxanes (VMS) in biota was conducted by reviewing 50 published articles and laboratory reports on aquatic (82%) and terrestrial (18%) species. A total of 178 bioaccumulation values were evaluated employing a quantitative weight-of-evidence (qWoE) approach provided by the Bioaccumulation Assessment Tool. Considerable variability of bioconcentration factor (BCF) and bioaccumulation factor (BAF) values was observed for VMS in aquatic organisms, which ranged from below to above their respective regulatory threshold values. The frequency of evidence for nonbioaccumulation (i.e., BCF or BAF <2,000) was ≥50% for D6, L2, L5, and L6. Conversely, laboratory biomagnification factor (BMF) values were generally ≥71% less than 1, indicating low bioaccumulation potential through dietary uptake. Field BMFs displayed more variability but still suggested a low bioaccumulation potential. Despite the majority (≥65%) of trophic magnification factors (TMFs) in aquatic food webs being below 1, the broad range of TMF values for all VMS examined indicates potential uncertainties introduced by environmental factors in the target environments (e.g., chemical exposure gradient) and sampling bias. Overall, lines of evidence (≥71%) suggest that cyclic and linear VMS generally do not bioaccumulate in aquatic species, with dietary uptake being the primary pathway. For terrestrial species, primarily rats, predicted and field BMFs were less than 1 at 37 °C, primarily via respiratory elimination. Field TMFs for terrestrial food webs, including invertebrates and various bird species with body temperatures of 18 and 40 °C, respectively, were sourced from a single study, where D4 demonstrated trophic dilution, while D5 and D6 generally did not biomagnify in this terrestrial food web. Key points The weight of evidence approach suggests that volatile methylsiloxanes (VMS) generally do not bioaccumulate in aquatic and terrestrial species, with dietary uptake being the primary pathway. Bioaccumulation assessment of volatile methylsiloxanes (VMS) reveals highly variable bioconcentration factor (BCF) and bioaccumulation factor (BAF) values in aquatic species influenced presumably by several factors including species characteristics, uptake pathways, and analytical uncertainties. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Integrated Environmental Assessment & Management is the property of Oxford University Press / USA and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1093/inteam/vjaf194 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 13 StartPage: 689 Subjects: – SubjectFull: Bioaccumulation Type: general – SubjectFull: Species Type: general – SubjectFull: Aquatic animals Type: general – SubjectFull: Bioconcentration Type: general – SubjectFull: Organosilicon compounds Type: general – SubjectFull: Biomagnification Type: general Titles: – TitleFull: Evaluating bioaccumulation potential of cyclic and linear volatile methylsiloxanes in aquatic and terrestrial species: a comprehensive analysis using the Bioaccumulation Assessment Tool. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Kim, Jaeshin – PersonEntity: Name: NameFull: McNett, Debra A – PersonEntity: Name: NameFull: Belkhiria, Sami – PersonEntity: Name: NameFull: Plotzke, Kathleen P IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 05 Text: May2026 Type: published Y: 2026 Identifiers: – Type: issn-print Value: 15513777 Numbering: – Type: volume Value: 22 – Type: issue Value: 3 Titles: – TitleFull: Integrated Environmental Assessment & Management Type: main |
| ResultId | 1 |
