Dustiness of graphene and graphite

) for the nanoscale materials, resulting in 0.21 to 6.1 g loaded masses. Modest enhancements to the testing protocol could potentially improve quantification for low-density materials. All test materials and quantifiable size fractions were classified as moderate or high dustiness on a mg/kg basis. The carbonaceous materials in this study have a moderate to high propensity of becoming airborne when subjected to a gentle gravity-induced stimulus. Without adequate controls to prevent dust emissions, handling could result in inhalation, dermal, and mucous membrane exposures as well as present slip, electrical, fire, and dust explosion hazards.