In the last several years there has been interest in human health consequences of exposures to a set of contaminants called PFAS. Many involved in understanding the PFAS issue have seen possible lessons from the experiences with PBB. Specifically, in February 2020 a conference was held in Ann Arbor, Michigan, on the subject of From PBB to PFAS.
The conference schedule can be seen here: M-LEEAD: From PBB to PFAS: Research and Action to Address Michigan’s Large-Scale Chemical Contaminations (umich.edu)
For more information on PFAS, you might check the following documents,