If selected, EPA would study vinyl chloride to determine whether it poses an “unreasonable risk to human health or the environment,” a process that would take at least three years ...

His testimony was intended to show the reasons Smith and other OxyVinyls officials felt the vinyl chloride was not undergoing a change called polymerization. Fear of polymerization and a ...

YOUNGSTOWN — With the Norfolk Southern train derailment civil trial in its third week, the focus of testimony Tuesday in U.S. District Court was Steve Smith, technical manager for OxyVinyls, the ...