PFAS in concrete is often a result of migration from other sources, usually historical use of Aqueous Film Forming Foams.
The porous nature of concrete allows PFAS to be absorbed into its internal structure. Without proper treatment and management, contaminated concrete can act as a reservoir of PFAS, steadily leaching it into other surfaces following rainfall.
We have characterised concrete pads and infrastructure at many different types of facilities to evaluate identify factors that influence PFAS adsorption, impregnation and remobilisation. We understand concrete and associated infrastructure can remain a residual secondary ongoing source of PFAS for many years following dispersal of PFAS related products (such as AFFF or mist suppressants). Our team can design and implement various management options, to mitigate / eliminate concrete and other similar infrastructure behaving as an ongoing secondary source of PFAS to the environment.
Sampling and investigation of concrete pads at airport