Comments in for US draft assessments of GenX and PFBS chemicals

Feedback on the US EPA’s draft hazard assessments of GenX and PFBS chemicals has revealed two opposing positions, with NGOs and some state governments saying the safe exposure levels should be lower and industry the opposite. However, while industry comments primarily address technical aspects of the assessments, others refer to the wider regulatory context. In particular, NGOs and state regulators say that the hundreds of chemicals in the class to which GenX and PFBS chemicals belong – per- and polyfluoroalkyl substances (PFASs) – should be assessed together. The comments were submitted in response to the public consultation on two draft hazard assessments, published last year.