GSI Environmental PFAS experts have recently published two peer-reviewed scientific articles regarding a potential new approach for managing #PFAS in #groundwater.   The key theme behind this research is that managing PFAS in groundwater is currently very challenging because most current in-situ groundwater remediation technologies are ineffective or not applicable to PFAS plumes. The proposed new approach evaluates if a suite of retention processes such as air/water partitioning, sorption, and matrix diffusion are strong enough to protect nearby groundwater receptors and allow the application of retention-based PFAS Monitored Natural Attenuation (MNA). This approach is summarized in these two recently published papers, both of which are open access with free downloads:

1. Monitored Natural Attenuation to Manage PFAS Impacts to Groundwater: Scientific Basis (Published in Groundwater Monitoring and Remediation)  https://lnkd.in/eHci4M25

2. Monitored Natural Attenuation to Manage PFAS Impacts to Groundwater: Potential Guidelines (Published in the Remediation Journal).  https://lnkd.in/ex8x3bEy

This PFAS MNA research was funded by GSI Environmental and authored by GSI PFAS experts Dr. Chuck Newell, Dr. David Adamson, Poonam Kulkarni, P.E., Dr. Blossom Nzeribe, Ph.D., and John A. Connor while at GSI; Dr. Jovan Popovic of the Naval Facilities Engineering Systems Command; and Dr. Hans Stroo of Stroo Consulting.  The authors plan to further develop the retention-based PFAS MNA technology in an upcoming U.S. Dept. of Defense research project, Developing a Framework for Monitored Natural Attenuation at PFAS Sites, ESTCP Project ER21-5198, led by GSI’s Dr. David Adamson.  https://lnkd.in/eyHzUtkZ

Proud Sponsors of the The Groundwater Project! Their mission is to provide accessible, engaging, high-quality, educational materials, free-of-charge online in many languages, to all who want to learn about groundwater and understand how groundwater relates to and sustains ecological systems and humanity. #groundwater #education #onlinebooks

Special thanks to our employees on their #workanniversaries! We are grateful to have you! #employeeappreciation

At last years Society of Environmental Toxicology and Chemistry (SETAC) meeting for environmental management of per- and polyfluoroalkyl substances (PFAS) Janet Anderson PhD DABT and other experts were brought together to critically evaluate new and emerging information on PFAS chemistry, fate, transport, exposure, and toxicity. This paper summarizes outcomes of presentations and breakout discussions related to the following.

(1) primary sources and pathways in the environment
(2) sorption and transport in porous media
(3) precursor transformation
(4) practical approaches to the assessment of source zones
(5) standard and novel analytical methods with implications for environmental forensics and site management, and
(6) classification and grouping from multiple perspectives.

Learn more about how PFAS classification will continue to be a challenge, and additional pressing needs include increased availability of analytical standards and methods for assessment of PFAS and fate and transport, including precursor transformation.

👉👉 Read the full paper at https://lnkd.in/epJ8cpdq

#pfas #toxicology #chemistry

Join Lila Beckley at the upcoming Industry Council on the Environment Virtual Meeting on Sewers and Utility Tunnels as Vapor Intrusion Preferential Pathways! #vaporintrusion

Register at https://ice-texas.org/content.aspx?page_id=4002&club_id=875777&item_id=1523957