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Strategic resources for assessing PFAS ecological risks at AFFF sites.

Jason Conder¹, Jeanmarie Zodrow², Jennifer Arblaster¹

¹Geosyntec Consultants, Huntington Beach, California, USA.

Integrated Environmental Assessment and Management

|March 22, 2021

Summary

Aqueous film-forming foam (AFFF) use raises ecological concerns due to per- and polyfluoroalkyl substances (PFAS). This review offers guidance for ecological risk assessment at PFAS-impacted sites, aiding management decisions.

Keywords:

AFFF Ecological risk assessment Modeling PFAS Site investigation

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Area of Science:

Environmental Science and Toxicology
Ecological Risk Assessment

Background:

Aqueous film-forming foam (AFFF) use has led to widespread per- and polyfluoroalkyl substances (PFAS) contamination.
Limited scientific information and guidance pose challenges for ecological risk assessment at PFAS-impacted sites.

Purpose of the Study:

To provide strategic guidance for ecological risk assessment at Department of Defense (DoD) sites impacted by AFFF and other PFAS.
To support risk assessors and site managers in making ecological-risk-based management decisions.

Main Methods:

Review of four desktop research projects funded by the DoD's Strategic Environmental Research and Development Program (SERDP).
Synthesis of recommendations and approaches for assessing ecological risks to threatened, endangered, and common species.

Main Results:

Developed strategic guidance applicable to ecological risk assessment at AFFF-impacted DoD sites.
Identified adaptable approaches for both threatened/endangered and common species.
Provided an overview of resources to support risk-based management decisions.

Conclusions:

The reviewed projects offer valuable resources and guidance for ecological risk assessment and management at PFAS-impacted sites.
Recommendations for prioritizing future research needs in PFAS ecological risk assessment are presented.