Nanoparticle exposure - risk level assessment
(Based on CB Nanotool developed by Paik, Zalk, et al. at Lawrence Livermore National Laboratory.)
11th Mar 2010 08:04
Substance name
Severity score
Surface reactivity
high
medium
low
unknown
Particle shape
tubular or fibrous
anisotropic
compact or spherical
unknown
Particle diameter [nm]
1-10nm
11-40nm
<41-100nm
unknown
Solubility
insoluble
soluble
unknown
Carcinogenicity
yes
no
unknown
Reproductive toxicity
yes
no
unknown
Mutagenicity
yes
no
unknown
Dermal toxicity
yes
no
unknown
Toxicity of parent material [µg/m3]
0-10 µg/m
3
11-100 µg/m
3
>100 µg/m3
unknown
Carcinogenicity of parent material
yes
no
unknown
Reproductive toxicity of parent material
yes
no
unknown
Mutagenicity of parent material
yes
no
unknown
Dermal hazard potential of parent material
yes
no
unknown
Probability score
Estimated amount used during task [mg]
> 100mg
11-100mg
0-10mg
unknown
Dustiness/mistiness
high
medium
low
none
unknown
Number of employees with similar exposure
>15
11-15
6-10
1-5
unknown
Frequency of operation
daily
weekly
monthly
less than monthly
unknown
Operation duration
>4 hours
1-4 hours
3-60 minutes
<30 minutes
unknown