EPA has reopened public comment on its proposal to tighten air toxics limits for large municipal waste combustors (MWCs) in order to address criticisms that its dataset and methods are inadequate, punting any final rule into the Trump administration and putting the agency in a difficult legal po...
To develop the list, EPA applied a rigorous approach to assemble and curate chemical names and reported CAS Registry Numbers (CASRNs), along with chemical structures where appropriate, within the ChemReg chemical registration system that houses the DSSTox data17. With an assembled dataset, models a...