Does Carbon Black exposure present any risk of mutagenicity or genotoxicity effects?
No. The term mutagenicity refers to any damage of the DNA; genotoxicity refers to damage to the genes. At times, damage to the gene can be associated with a health abnormality, but in other cases, damage to the gene may result in no abnormality whatsoever. According to current research, there is no evidence that Carbon Black is a mutagen (i.e., an agent capable of causing mutagenicity) or genotoxic.
Should I be concerned about the trace quantities of PAHs (polyaromatic hydrocarbons) attached to carbon black particles?
Trace quantities of PAHs are present on some carbon blacks as a result of the manufacturing process. These contaminants are tightly bound to the surface of manufactured Carbon Black Pigment (not the case for soot) and can only be removed after vigorous solvent extraction in the laboratory. Additionally, studies have determined that PAHs are not removed from carbon black by human biological processes.