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Webinar | PFAS In Biological Samples And Implications For Risk Assessment
August 14 @ 12:30 pm EDT
Overview
Join us on August 14, 2024 at 12:30PM EST for a technical webinar regarding PFAS In Biological Samples and Implications For Risk Assessment.
Background/Objectives
Per-and poly-fluoroalkyl substances (PFAS) encompass a large, heterogenous group of chemicals of potential concern to human health and the environment. Based on information for a few relatively well-understood PFAS, there is a basis to suspect that at least a subset will be unacceptably persistent, bioaccumulative, and/or toxic. Additional studies are needed to improve understanding of the nature of uptake of PFAS in biota and to support risk assessments.
Approach/Activities
Biota samples were collected during remedial investigation at aqueous film forming foam (AFFF) sites in both Alaska and New York. Biota samples included a variety of aquatic and terrestrial invertebrates (grasshoppers, bees, spiders, flies, and water beetles) and terrestrial vertebrates (voles and deer). PFAS analytical results for biota samples were compared to PFAS concentrations reported in nearby soil, sediment, and surface water samples.
Results/Lessons Learned
We demonstrate that site-specific biota sampling provides additional understanding of the nature of uptake of PFAS in biota. For the two subject case studies, PFAS compounds were detected in biota but varied in type and magnitude. For the risk assessment, the collection and analysis of site-specific samples reduced the uncertainty from the use of bioaccumulation models.
Presenters
Jennifer Benning, PHD – Dr. Benning is a senior project engineer with 24 years of environmental engineering experience in consulting and academia.
Mark Rigby, PHD – Dr. Rigby is a senior risk assessor with 25 years of experience in planning and performing site characterization studies and human health and ecological risk assessments.
To Join The Webinar
Click here to join the meeting
Or call in (audio only): +1 951.465.7634
Phone Conference ID: 559 504 430#
Please visit the Parsons YouTube channel where video recordings of our previous
technical webinars are available for viewing.
