Table 2 Thirteen factors and their scores for severity parameter in CB Nanotool (retrieved from23).
Surface chemistry of NM, reactivity and capacity to induce free radicals | Low: 0 | Medium: 5 | Unknown: 7.5 | High: 10 | |
Particle shape of NM | Spherical/compact: 0 | Anisotropic: 5 | Tubular/fibrous: 10 | Unknown: 7.5 | |
Particle diameter of NM | \(<\) 41–100 nm: 0 | 11–40 nm: 5 | 1–10 nm: 10 | Unknown: 7.5 | |
Solubility of NM | Soluble: 5 | Insoluble: 10 | Unknown: 7.5 | ||
Carcinogenicity of NM | Yes: 7.5 | No: 0 | Unknown: 5.625 | ||
Reproductive toxicity of NM | Yes: 7.5 | No: 0 | Unknown: 5.625 | ||
Mutagenicity of NM | Yes: 7.5 | No: 0 | Unknown: 5.625 | ||
Dermal toxicity of NM | Yes: 7.5 | No: 0 | Unknown: 5.625 | ||
Toxicity of PM | 0–1 μg/m3: 10 | 2–10 μg/m3: 5 | \(<\) 41–100 μg/m3: 2.5 | > 100 μg/m3:0 | Unknown: 7.5 |
Carcinogenicity of PM | Yes: 7.5 | No:0 | Unknown: 3.75 | ||
Reproductive toxicity of PM | Yes: 7.5 | No:0 | Unknown: 3.75 | ||
Mutagenicity of PM | Yes: 7.5 | No: 0 | Unknown: 3.75 | ||
Dermal toxicity of PM | Yes: 7.5 | No: 0 | Unknown: 3.75 | ||