October 29, 2019

Jason Conder and Emily Larson to Present on PFAS for AGLA Webinar

Jason Conder, Ph.D. (California) and Emily Larson (Colorado) will present "Ecological Risks of Per and Polyfluoroalkyl Substances (PFAS)" for the Australasian Land & Groundwater Association (ALGA) webinar from 12:00 p.m. - 1:00 p.m. on Tuesday November 12, 2019.

Jason is a Principal Scientist based in California with more than 15 years of experience focused on risk assessment and contaminated sediments in contaminated site assessment and management, environmental toxicology, and ecological and human health risk assessment.

Emily is a Scientist based in Colorado focused on modeling the bioaccumulation of semivolatile compounds and metals in ecological systems, modeling exposure to human and ecological receptors, and preparing human health and ecological risk assessments.

ALGA was formed to provide a forum and identity for the Australasian contaminated land and groundwater industry and support the many professionals working in the field. The core focus of this association is to support advances in the prevention, assessment, and remediation of contaminated land and groundwater. The ALGA Ltd. has a broad base of members including land owners, property developers, industry, consultants, scientist, contractors, regulatory agency staff, government, the legal profession, laboratory staff, financiers, insurers, researchers, and academics.

Presentation Description

Perfluoroalkyl and polyfluoroalkyl substances (PFAS) have been widely used in numerous applications since the 1950s, including aqueous film forming foams (AFFFs) used for fire suppression at airports, firefighting training facilities, and other industrial locations. Many sites host ecological habitat or due to the offsite transport potential for PFAS, PFAS-impacted sites may affect nearby and downgradient areas. Ecological Risk Assessments (ERAs) are commonly needed at these sites to enable decision making related to investigation and remediation.

This presentation will provide an overview of PFAS ERAs, including a state-of-the-science overview of the fate, exposure, and toxicity of PFAS in ecosystems. Much of the presentation will focus on our recently-released guidance document on PFAS for the United States Department of Defense's Strategic Environmental Research and Development Program (SERDP), available for download at: https://www.serdp-estcp.org/Program-Areas/Environmental-Restoration/ER18-1614. This guidance provides pragmatic approaches for addressing PFAS ecological risks at AFFF-impacted sites but is also applicable to sites impacted by other PFAS sources. In addition, we will also provide practical examples from ERAs for PFAS conducted in the U.S. and Australia, including advice on decision-making approaches involving Australian and New Zealand guidelines for fresh and marine water quality.

More Information

About the event: Ecological Risks of Per and Polyfluoroalkyl Substances (PFAS)
About ALGA: https://landandgroundwater.com/page/vision-mission
For consultation regarding per- and polyfluoroalkyl Substances (PFAS), contact Jason Conder at This email address is being protected from spambots. You need JavaScript enabled to view it. or Emily Larson at This email address is being protected from spambots. You need JavaScript enabled to view it..
Learn more about Jason at: https://www.geosyntec.com/people/jason-conder
Learn more about Emily at: https://www.linkedin.com/in/emily-larson-6bb10a19/

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