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Should I be concerned about the trace quantities of PAHs (polyaromatic hydrocarbons) attached to carbon black particles?

April 26, 2017attached Black carbon concerned hydrocarbons PAHs particles trace

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Should I be concerned about the trace quantities of PAHs (polyaromatic hydrocarbons) attached to carbon black particles?

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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 (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.