Use of terrestrial field studies in the derivation of bioaccumulation potential of chemicals. (8th December 2015)

• Record Type: Journal Article
• Authors: van den Brink, Nico W; Arblaster, Jennifer A; Bowman, Sarah R; Conder, Jason M; Elliott, John E; Johnson, Mark S; Muir, Derek CG; Natal‐da‐Luz, Tiago; Rattner, Barnett A; Sample, Bradley E; Shore, Richard F
• Is Part Of: Integrated environmental assessment and management. Volume 12:Number 1(2016:Jan.)
• Page Start: 135
• Page End: 145
• Publication Date: 2015-12-08
• Subjects: Biomagnification factors -- Biota‐to‐soil‐accumulation factors -- BMF -- BSAF -- Chemical bioaccumulation -- Terrestrial food web -- TMF -- Trophic magnification factors; Environmental management -- Periodicals; Pollution -- Periodicals; Environmental toxicology -- Periodicals; Environmental risk assessment -- Periodicals; Environmental impact analysis -- Periodicals; 628
• DOI: 10.1002/ieam.1717
• Languages: English
• ISSNs: 1551-3777

Abstract

ABSTRACT: Field‐based studies are an essential component of research addressing the behavior of organic chemicals, and a unique line of evidence that can be used to assess bioaccumulation potential in chemical registration programs and aid in development of associated laboratory and modeling efforts. To aid scientific and regulatory discourse on the application of terrestrial field data in this manner, this article provides practical recommendations regarding the generation and interpretation of terrestrial field data. Currently, biota‐to‐soil‐accumulation factors (BSAFs), biomagnification factors (BMFs), and bioaccumulation factors (BAFs) are the most suitable bioaccumulation metrics that are applicable to bioaccumulation assessment evaluations and able to be generated from terrestrial field studies with relatively low uncertainty. Biomagnification factors calculated from field‐collected samples of terrestrial carnivores and their prey appear to be particularly robust indicators of bioaccumulation potential. The use of stable isotope ratios for quantification of trophic relationships in terrestrial ecosystems needs to be further developed to resolve uncertainties associated with the calculation of terrestrial trophic magnification factors (TMFs). Sampling efforts for terrestrial field studies should strive for efficiency, and advice on optimization of study sample sizes, practical considerations for obtaining samples, selection of tissues for analysis, and data interpretation is provided. Although there is still much to be learned regarding terrestrial bioaccumulation, these recommendations provide some initial guidance to the present application of terrestrial field data as a line of evidence in the assessment of chemical bioaccumulation potential and a resource to inform laboratory and modeling efforts. Integr Environ Assess Manag 2016;12:135–145. © 2015 SETAC Key Points: Terrestrial field studies are a valuable line of evidence in the assessment of the bioaccumulation potential of chemicals. Biota‐to‐Soil‐Accumulation Factors (BSAFs) and Biomagnification Factors (BMFs) are the most robust metrics for quantifying chemical bioaccumulation potential, however, the use of stable isotopes (e.g., ?13C and ?15N) in terrestrial food webs, to support the use of Trophic Accumulation Factors (TMFs) needs further development. Inclusion of bioavailability, spatio‐temporal variability and metabolism in assessments of chemical bioaccumulation potential is of great importance to increase environmental realism and relevance.