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Workers - Hazard via inhalation route

Systemic effects

Long term exposure
Hazard assessment conclusion:
no hazard identified
Route of original study:
By inhalation
Acute/short term exposure
Hazard assessment conclusion:
DNEL (Derived No Effect Level)
Value:
4 300 mg/m³
Most sensitive endpoint:
acute toxicity
Route of original study:
By inhalation
DNEL related information
DNEL derivation method:
other:
Overall assessment factor (AF):
7.5
Modified dose descriptor starting point:
NOAEC
Value:
1 560 mg/m³

Local effects

Long term exposure
Hazard assessment conclusion:
low hazard (no threshold derived)
Most sensitive endpoint:
irritation (respiratory tract)
Acute/short term exposure
Hazard assessment conclusion:
no hazard identified
DNEL related information

Workers - Hazard via dermal route

Systemic effects

Long term exposure
Hazard assessment conclusion:
DNEL (Derived No Effect Level)
Value:
4.2 mg/kg bw/day
Most sensitive endpoint:
repeated dose toxicity
Route of original study:
Dermal
DNEL related information
DNEL derivation method:
ECHA REACH Guidance
Overall assessment factor (AF):
40
Modified dose descriptor starting point:
other: modified dose descriptor for absorption differences
Value:
167 mg/kg bw/day
AF for dose response relationship:
1
Justification:
ECHA default
AF for differences in duration of exposure:
2
Justification:
ECHA default for sub-chronic to chronic
AF for interspecies differences (allometric scaling):
4
Justification:
ECHA default
AF for intraspecies differences:
5
Justification:
ECHA default
AF for the quality of the whole database:
1
Justification:
ECHA default
AF for remaining uncertainties:
1
Justification:
ECHA default
Acute/short term exposure
Hazard assessment conclusion:
no hazard identified
Route of original study:
Dermal
DNEL related information

Local effects

Long term exposure
Hazard assessment conclusion:
low hazard (no threshold derived)
Most sensitive endpoint:
skin irritation/corrosion
Acute/short term exposure
Hazard assessment conclusion:
low hazard (no threshold derived)
Most sensitive endpoint:
skin irritation/corrosion

Workers - Hazard for the eyes

Local effects

Hazard assessment conclusion:
no hazard identified

Additional information - workers

DNELs derived based on read across to data on similar materials.

 

Effect

Route

DNEL

Dose Descriptor

Modified Dose Descriptor and Assessment Factors

Acute Exposure

Systemic

Dermal

(a)

 

 

Inhalation

4300 mg/m3/ 15 min (for lethality) [aerosol]

1560 mg/m3/4 h (NOAEC based on lethality in acute inhalation study in rats)

Dose descriptor was modified to correct starting point of 16,723 mg/m3/15 min by adjustment for duration of exposure and level of activity. Then a total AF of 7.5 was applied for inter- and intraspecies differences.

General Population - Hazard via inhalation route

Systemic effects

Long term exposure
Hazard assessment conclusion:
no hazard identified
Acute/short term exposure
Hazard assessment conclusion:
DNEL (Derived No Effect Level)
Value:
2 600 mg/m³
Most sensitive endpoint:
acute toxicity
Route of original study:
By inhalation
DNEL related information
DNEL derivation method:
other: see discussion
Overall assessment factor (AF):
7.5
Modified dose descriptor starting point:
NOAEC
Value:
1 560 mg/m³

Local effects

Long term exposure
Hazard assessment conclusion:
low hazard (no threshold derived)
Most sensitive endpoint:
skin irritation/corrosion
Acute/short term exposure
Hazard assessment conclusion:
no hazard identified
DNEL related information

General Population - Hazard via dermal route

Systemic effects

Long term exposure
Hazard assessment conclusion:
DNEL (Derived No Effect Level)
Value:
2.1 mg/kg bw/day
Most sensitive endpoint:
repeated dose toxicity
Route of original study:
Dermal
DNEL related information
DNEL derivation method:
ECHA REACH Guidance
Overall assessment factor (AF):
80
Modified dose descriptor starting point:
other: modified dose descriptor for absorption differences
Value:
167 mg/kg bw/day
AF for dose response relationship:
1
Justification:
ECHA default
AF for differences in duration of exposure:
2
Justification:
ECHA default
AF for interspecies differences (allometric scaling):
4
Justification:
ECHA default
AF for intraspecies differences:
10
Justification:
ECHA default
AF for the quality of the whole database:
1
Justification:
ECHA default
AF for remaining uncertainties:
1
Justification:
ECHA default
Acute/short term exposure
Hazard assessment conclusion:
no hazard identified
DNEL related information

Local effects

Long term exposure
Hazard assessment conclusion:
low hazard (no threshold derived)
Most sensitive endpoint:
skin irritation/corrosion
Acute/short term exposure
Hazard assessment conclusion:
low hazard (no threshold derived)
Most sensitive endpoint:
skin irritation/corrosion

General Population - Hazard via oral route

Systemic effects

Long term exposure
Hazard assessment conclusion:
no hazard identified
Acute/short term exposure
Hazard assessment conclusion:
no hazard identified
DNEL related information

General Population - Hazard for the eyes

Local effects

Hazard assessment conclusion:
no hazard identified

Additional information - General Population

Acute Systemic

Dermal

(a)

 

 

Inhalation

2600 mg/m3/ 15 min (for lethality) [aerosol]

1560 mg/m3/4 h (NOAEC based on lethality in acute inhalation study in rats)

Dose descriptor was modified to correct starting point of 16,723 mg/m3/15 min by adjustment for duration of exposure and level of activity. Then a total AF of 7.5 was applied for inter- and intraspecies differences.