PFAS in Source and Ambient Air, Part 5
PFAS destruction processes, like incineration or thermal oxidation, require rigorous monitoring of both destruction and removal efficiency and stack gas emissions. Additionally, facilities using PFAS in manufacturing processes warrant similar scrutiny. The U.S. EPA's updated Interim Guidance on Destruction and Disposal of PFAS (April 9, 2024) provides critical measurement guidance and protocols for these processes.
Background levels of PFAS are receiving heightened attention, some of which may originate from atmospheric transport, both through wet and dry deposition. This increased focus raises important questions about facility emissions, landfill gas emissions, potential migration during construction or excavation activities, and the necessity for perimeter air monitoring protocols.
Federal agencies including NIOSH, CDC, ATSDR, and EPA have grappled with complex challenges regarding worker exposure, indoor air quality, and vapor intrusion. The context of each assessment requiring specialized methodologies tailored to specific air environments, specific PFAS, and relevant concentration thresholds.
The unique physicochemical properties of PFAS necessitate specialized sampling and analytical approaches for air. While standard EPA test methods for other organic compounds provide foundational frameworks, researchers have developed enhanced techniques specifically targeting PFAS across various environments, including source emissions, ambient air, indoor spaces, and soil vapor.
Topics the Presentation Will Cover Include:
- Sources and prevalence of PFAS in Air
- Regulatory drivers to test for PFAS in Air, including the Destruction and Disposal Guidance
- EPA Guidance Methods, including OTM-45, OTM-50, Mod 0010,
- EPA Standard Methods as building blocks, including Modified TO-13A/TO-10A/TO-17
Airdate: Tuesday, July 8, 2025 - 1:30 PM ET
Length: 60 minutes
Presenter: Taryn McKnight - Eurofins Environment Testing
