To collect environmental samples for PFAS analysis, we routinely engage in community-based engagement ("crowdsourcing"). Below are sampling tutorials for those interested in helping us collect environmental samples.
Below is a video on how to collect surface water. Remember to always think about safety!
Below is a video on how to collect sediment cores (to assess retrospective levels of PFAS). Each cm of sediment below the surface equates to an estimate in years past, thus if we analyze the layers of sediment below the surface, we are able to estimate PFAS levels in the past.