PFAS in Air – Environmental and IH Status

Air Monitoring, Methods, and Technology
Oral Presentation

Prepared by K. Bagawandoss
SGS North America, Inc., 10175 Harwin, Suite 107, Houston, Texas, 77036, United States


Contact Information: [email protected]; 281-881-1457

ABSTRACT

PFAS in air is a burning topic in the “Forever Chemicals World”. Although OTM-45 method has been in use for a while that method is an impinger sample collection method in a liquid and analyzed by EPA method 1633 or 537 (mod.). OTM -50 is an Air method, wherein, samples are collected in SUMMA canisters akin to TO-15A. OTM-50 names a target compound list of 30 PFAS compounds. The differences between regular PFAS LC/MS/MS OTM-45 and OTM-50 methods will be discussed. US EPA requires that 30 PFAS compounds be analyzed as provided in the OTM-50 method.
This presentation will outline various possible sample collection methods and analysis combinations and methods of analysis. Current status will be discussed.
ACGIH threshold limit values (TLV’s) will be discussed for PFAS compounds. The compounds affected and their limits will be discussed. The NIOSH fluorinated compounds will also be presented and their association with OTM-50 will be outlined.