“Toxic substance causing chronic illness” means any of the following:
(a) Human carcinogens.
(b) Potential human carcinogens.
(c) Any substance included in the list of hazardous substances prepared by the Director of Industrial Relations, pursuant to Section 6382 of the Labor Code, notwithstanding exemptions made for substances on the list which are used in particular forms, circumstances, or concentrations, if the health hazard presented by the substance is not the subject of label statements required by federal law.