Field-Based Terrestrial and Aquatic Bioaccumulation Factors for PFAS
Nava Garisto, Elham Arbaban, Adam Dawe, Courtney Guay Arcadis Canada Inc.
The objective of this presentation is to provide BAFs for multiple media and biota in support of risk assessments. The trends identified in this study will help guide the direction of future field studies in that they clarify where there are uncertainties in critical risk drivers.
Soil Invertebrate and Terrestrial Plant Tissue Uptake of PFAS at a Former Firefighter Training Area – Comparison of Site Specific and Literature Bioconcentration Factors and Implications for Site Specific Target Level Derivation
David Tarnocai1, Lisa McDonald2, Scott Greenwood3 1SNC-Lavalin Inc. 2Transport Canada 3Environment and Climate Change Canada
The objective of this presentation is to provide the results of the site specific soil-terrestrial plant and soil-terrestrial invertebrate PFAS uptake, expected PFAS uptake to plant and invertebrate tissue relative to PFAS carbon chain length, comparison to published values, effect of differences that literature and site specific BCFs can have on PFAS SSTLs and factors to consider in the selection of published BCFs when establishing site specific BCFs do not represent a viable option.
Risk Assessment of PFAS in Support of Brownfield Redevelopment
Krista Barfoot and Henry Yee Jacobs
The objective of this presentation is to outline PFAS screening levels and toxicity values that may be applied to support the assessment of risk, as well as the conceptual human health and ecological exposure models applicable to evaluating PFAS at a brownfield site.