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Table 3 Results of risk assessment with “Stoffenmanager.Nano”

From: Ultrafine particles in scanning sprays: a standardized examination of five powders used for dental reconstruction

Product

Nano component

hc

ec time

Risk time

ec task

Risk task

Spray A

pentane

B

1

III

1

III

Spray B

talc

B

2

III

2

III

naphta

D

2

II

2

II

lemon oil

C

1

III

2

II

Spray C

pentane

B

1

III

1

III

Spray D

titanium dioxide

D

2

II

3

I

zirconium dioxide

D

2

II

3

I

zinc distereate

C

2

II

2

II

isobutane (propellant)

A

2

III

3

III

Spray E

titanium dioxide

D

2

II

3

I

zirconium dioxide

D

2

II

3

I

zinc distereate

C

2

II

2

II

silicium dioxide

D

1

II

2

II

  1. hc Hazard class: class A -least hazardous to class E - most hazardous substances
  2. ec Time (exposure class time): class 1 - lowest exposure, class 4 – highest exposure
  3. risk time: risk score III - low risk, risk score I - high risk. ec task (exposure class task): class 1 - lowest exposure, class 4 - highest exposure
  4. risk task (−weighted): risk score III - low risk, risk score I - high risk. (for further explanation, please see Methods section)
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Journal of Occupational Medicine and Toxicology

ISSN: 1745-6673