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The Webinar included the following presentation:

Dr. Nancy Rothman, New Environmental Horizons
PFAS: Assessing Laboratory Data Quality [PDF]

The drinking water health advisories and standards for several poly- and perfluoroalkyl substances (PFAS) are 70 parts per trillion and lower. Detection at such low levels presents many challenges in the field and in the laboratory and can lead to difficulties in data quality assessment and useability. Join us to learn more and ask your questions!

Nancy C. Rothman, Ph.D., CEO & Principal Scientist, New Environmental Horizons, Inc. will present Analytical Issues Affecting PFAS Data Quality. Building upon the “PFAS Sampling Challenges” presentation, the practical aspect of reviewing PFAS data for accuracy, precision, sensitivity, and representativeness will be discussed.  An example PFAS report will be reviewed to demonstrate to users exactly what to look for when deciding if the data are able to be used for project decisions.  Specific issues, limitations, and interferences in PFAS data will be addressed along with the key factors affecting analytical accuracy of PFAS compounds in various types of media.   Issues related to comparison of data from one laboratory to another and from one sampling event to another will be addressed so that data users will be able to make informed decisions about their projects.

Note: Elizabeth Denly was sick with the flu and unable to present on the webinar - NEWMOA will work with her to schedule a separate webinar for her presentation...

Elizabeth Denly, ASQ CMQ/OE, Quality Assurance & Chemistry Director, TRC will present PFAS Sampling Challenges. The potential for cross-contamination becomes even more crucial with PFAS than other chemicals because the regulatory criteria for PFAS are in the parts per trillion (ppt)/nanograms per liter (ng/L) range.  The rules for sampling PFAS in different media will be addressed.  Recommendations for proper field quality control (QC) requirements will be provided.  In addition, the results of a study performed by TRC and Alpha Analytical will be presented showing the different PFAS constituents that can be transferred from common sampling materials and the relative concentrations of these PFAS in each of the tested materials.

For more information, contact Jennifer Griffith at .



Last Modified 08/21/2012

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