Papers

Information about the “Forever Chemicals” Poly- and Perfluoroalkyl Substances (PFASs) continues to grow in the extent of publications and ongoing learnings about the detrimental impacts these chemical have on the environment and human health. Regulated globally at an ever increasing level, conventions, protocols, nepm’s, legislation and guidelines provide alignment and direction globally as more is learned about these persistent chemicals.

Updated global information and technical papers are available at some of the following websites

Environmental Health Perspective: http://ehp.niehs.nih.gov/1509934/

Basel Convention: www.basel.int

Rotterdam Convention: www.pic.int

Stockholm Convention: http://chm.pops.int/

Montreal Protocol/Vienna Convention: http://ozone.unep.org

SAICM: http://www.saicm.org/

POPs phase out & alternatives: http://poppub.bcrc.cn/

OECD/IOMC: http://www.oecd.org/chemicalsafety/

Science: http://www.ipcp.ch/

Perfluoroalkyl substances in a firefighting training ground (FTG), distribution and potential future release

Overview

PFASs concentrations have been quantified at a FTG (up to 230 μg g−1 for PFOS).
PFAS have been found within the concrete up to 12 cm depth.
The total mass load of 15 PFASs is estimated at 1.7 kg for the whole FTG.
A transport model for PFOS, PFOA and 6:2FTS is created under field condition.
FTG will keep emitting these chemicals in rainfall runoff for several years/decades.

Discovery of novel per- and polyfluoroalkyl substances (PFASs) at a fire fighting training ground and preliminary investigation of their fate and mobility

Overview

PFASs were investigated at a AFFF impacted fire training ground (FTG).
AFFF impacted concrete and soil core samples (0–2 m) were analysed by LC-QTOF-MS/MS.
Mass defect filtering strategy allowed the detection of untargeted PFASs.
Novel PFASs homologues were detected in soil and concrete samples collected at the FTG.

Managing Risks and Liabilities associated with Per- and Polyfluoroalkyl Substances (PFASs)

Overview

CL: AIRE technical bulletins describe specific techniques, practices and methodologies currently being employed on sites in the UK.

This bulletin provides a summary of per- and polyfluoroalkyl substances (PFASs) and highlights approaches to manage risks and liabilities associated with their impact to the environment.

Analyzed by LC-QTOF-MS/MS.

Release of perfluoroalkyl substances from AFFF-impacted concrete in a firefighting training ground (FTG) under repeated rainfall simulations

Overview

Firefighting training grounds (FTGs) questions regarding possible PFAS retention within concrete and subsequent releases to the environment. This investigation seeks to better understand the release from a legacy FTG. Surface ponding and rainfall simulations were conducted. The maximum concentrations of PFAS in runoff water of five rainfall simulations were similar, suggesting recurring release of PFAS from AFFF impacted concrete, which could be sustained by upward transport of PFAS in the concrete subsurface layers through a potential “wicking” effect.