Gradient Presenting at the 30th Annual International Conference on Soil, Water, Energy, and Air

News & Events

March 12, 2021

Gradient is presenting at the 30th Annual International Conference on Soil, Water, Energy, and Air.  The conference is scheduled for March 22-25, 2021 and is Virtual. 

Gradient scientists Julie Lemay, M.P.H. and Dr. Robyn Prueitt, Ph.D., DABT are presenting in “Workshop 06: PFAS 360: Analytical Challenges & Risk Assessment Update” which is scheduled for Wednesday, March 24 from 8:30PM – 10:30PM.  

Workshop 06: PFAS 360: Analytical Challenges & Risk Assessment Update

Over the last several years, significant media attention has been focused on the detection of PFAS in the environment and particularly in potable water supplies. Because of the public outcry regarding these compounds in the environment, regulatory agencies are compelled to issue orders or otherwise mandate the collection and analysis of environmental samples for an ever-growing list of PFAS. However, an EPA method is only available for drinking water, leaving commercial laboratories to their devices to develop their own methods, some very good and other not so much, resulting in extraordinary data comparability issues, not to mention serious issues with regulatory accreditation process. 

While the technology (and reference materials) is available to measure up to 38 PFAS (and the list keeps growing), the scarcity of reliable toxicity studies for many PFAS has hampered the application of definitive risk assessments. Finally, as PFAS have been dubbed by the media as “Forever Compounds”, the persistent nature of PFAS has created interesting challenges for remediating environmental media.

Moderator: Rock Vitale, Rock J. Vitale, CEAC  -Technical Director of Chemistry/Principal, Environmental Standards, Inc.

Panel 1 – Analytical Challenges

  • David R. Blye, CEAC – Principal Chemist, Environmental Standards, Inc.
  • Erica Kalve – Engineering Geologist, San Francisco Bay Regional Water Quality Control Board
  • Martha Maier – President –  Vista Analytical Bryan Vining, Ph.D., Enthalpy Analytical, LLC,
  • Chuck Neslund, Ph.D. – Scientific Officer, Eurofins Lancaster
  • Bryan Vining, Ph.D.-  Laboratory Director, Enthalpy Analytical

Panel 2 – Risk Assessment

  • Angie Perez, Ph.D.  – Senior Toxicologist, CTEH
  • John Newsted, Ph.D.  – Managing Ecotoxicologist, Ramboll
  • Robyn Prueitt, Ph.D. – Senior Toxicologist, Gradient
  • Julie C. Lemay, MPH  – Senior Environmental Health Scientist, Gradient