Risk assessment method

According to previous studies (16), the Nanotool (http://www.controlbanding.net/) is suitable for nanoparticles and has comprehensive advantages in risk assessment; thus, it was selected for use in this study. It was developed by Paik and Zalk at Lawrence Livermore National Laboratory in the United States. The Nanotool uses a scoring system to allocate risk and exposure levels, as well as combines the risk and exposure levels to obtain the risk level in the two-dimensional decision matrix, followed by dividing them into four levels on average. Table 3 shows the hazard and exposure input parameters. Hazards were determined based on particle shape, concentration, surface activity, and toxicity (including carcinogenicity, mutagenicity, and reproductive toxicity). Exposure levels were determined by substance emission potential, activity emission potential, and exposure control.

Hazard parameters and exposure scenario parameters of oil fume.