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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Administrative data

Workers - Hazard via inhalation route

Systemic effects

Long term exposure
Hazard assessment conclusion:
DNEL (Derived No Effect Level)
Value:
9.8 mg/m³
DNEL related information
Overall assessment factor (AF):
18
Modified dose descriptor starting point:
NOAEC
Acute/short term exposure
DNEL related information

Local effects

Long term exposure
Hazard assessment conclusion:
no-threshold effect and/or no dose-response information available
Acute/short term exposure
Hazard assessment conclusion:
no-threshold effect and/or no dose-response information available
DNEL related information

Workers - Hazard via dermal route

Systemic effects

Long term exposure
Hazard assessment conclusion:
DNEL (Derived No Effect Level)
Value:
14 mg/kg bw/day
DNEL related information
Overall assessment factor (AF):
72
Modified dose descriptor starting point:
NOAEL
Acute/short term exposure
DNEL related information

Local effects

Long term exposure
Hazard assessment conclusion:
no-threshold effect and/or no dose-response information available
Acute/short term exposure
Hazard assessment conclusion:
no-threshold effect and/or no dose-response information available

Workers - Hazard for the eyes

Additional information - workers

AD-1000 is not classified for acute oral, dermal and inhalation toxicity and therefore, no acute DNELs have to be derived.The long-term DNEL is considered sufficient to ensure that effects from acute exposure to the substance do not occur (in accordance with ECHA Guidance on information requirements and chemical safety assessment: Chapter R.8: Characterisation of dose [concentration]-response for human health, May 2008 and Part B: Hazard Assessment, Draft new chapter B.8 Scope of Exposure Assessment, March 2010).

DNELs for local effects will not be derived, as no local effects in repeated dose studies were observed.

The following DNELs for workers will be derived:

Systemic:

Long-term inhalation workers

Long-term dermal workers

Route-to-route extrapolation

For the derivation of the DNELs:

Long-term – dermal, systemic effects

Long-term – inhalation, systemic effects

Route-to-route extrapolation has been performed. In absence of relevant data, only differences between the different routes as determined by the assumed percentages of absorption into the systemic circulation could be accounted for (see toxicokinetic assessment).

Absorption oral (rat) = Absorption oral (human) = 10%

Absorption dermal (human) = 10%

Absorption inhalation (human) = 100%

 The DNELs for human exposure are derived according to the ECETOC guidance (Technical Report No.110, October 2010).

Starting point for DNEL derivation: NOAEL ≥1000 mg/kg bw/day from an oral 28-day study in rats (highest dose tested, no effects)

Long-term inhalation, systemic effects

Route-to-route extrapolation:

Inhalation NOAEL = oral NOAEL * ABSoral-rat/ABSinh-human = 1000 * 10/100 = 100 mg/kg bw

Corrected inhalatory NOAEC = 100 * 1/0.38 * 6.7 m3/10 m3= 176 mg/m3

Safety factors:

-      Interspecies extrapolation: 1

-      Intraspecies extrapolation: 3

-      Exposure duration: 6 (assuming chronic worker exposure)

-      Dose response: 1

-      Quality of the data base: 1

Total safety factor: 18

Based on the above, the long-term DNEL for systemic effects after inhalation exposure of the worker, is set at 9.8 mg/m3.

Long-term dermal, systemic effects

Route-to-route extrapolation:

Dermal NOAEL = oral NOAEL * ABSoral-rat/ABSderm-human = 1000 * 10/10 = 1000 mg/kg bw

Safety factors:

-      Interspecies extrapolation: 4

-      Intraspecies extrapolation: 3

-      Exposure duration: 6 (assuming chronic worker exposure)

-      Dose response: 1

-      Quality of the data base: 1

Total safety factor: 72

Based on the above, the long-term DNEL for systemic effects after dermal worker exposure is set at 14 mg/kg bw/day.

General Population - Hazard via inhalation route

Systemic effects

Long term exposure
Hazard assessment conclusion:
DNEL (Derived No Effect Level)
Value:
2.9 mg/m³
DNEL related information
Overall assessment factor (AF):
30
Modified dose descriptor starting point:
NOAEC
Acute/short term exposure
DNEL related information

Local effects

Long term exposure
Hazard assessment conclusion:
no-threshold effect and/or no dose-response information available
Acute/short term exposure
Hazard assessment conclusion:
no-threshold effect and/or no dose-response information available
DNEL related information

General Population - Hazard via dermal route

Systemic effects

Long term exposure
Hazard assessment conclusion:
DNEL (Derived No Effect Level)
Value:
8.3 mg/kg bw/day
DNEL related information
Overall assessment factor (AF):
120
Modified dose descriptor starting point:
NOAEL
Acute/short term exposure
DNEL related information

Local effects

Long term exposure
Hazard assessment conclusion:
no-threshold effect and/or no dose-response information available
Acute/short term exposure
Hazard assessment conclusion:
no-threshold effect and/or no dose-response information available

General Population - Hazard via oral route

Systemic effects

Long term exposure
Hazard assessment conclusion:
DNEL (Derived No Effect Level)
Value:
8.3 mg/kg bw/day
DNEL related information
Overall assessment factor (AF):
120
Modified dose descriptor starting point:
NOAEL
Acute/short term exposure
DNEL related information

General Population - Hazard for the eyes

Additional information - General Population

AD-1000 is not classified for acute oral, dermal and inhalation toxicity and therefore, no acute DNELs have to be derived.The long-term DNEL is considered sufficient to ensure that effects from acute exposure to the substance do not occur (in accordance with ECHA Guidance on information requirements and chemical safety assessment: Chapter R.8: Characterisation of dose [concentration]-response for human health, May 2008 and Part B: Hazard Assessment, Draft new chapter B.8 Scope of Exposure Assessment, March 2010).

DNELs for local effects will not be derived, as no local effects in repeated dose studies were observed.

The following DNELs for workers will be derived:

Systemic:

Long-term inhalation workers

Long-term dermal workers

Route-to-route extrapolation

For the derivation of the DNELs:

Long-term – dermal, systemic effects

Long-term – inhalation, systemic effects

Route-to-route extrapolation has been performed. In absence of relevant data, only differences between the different routes as determined by the assumed percentages of absorption into the systemic circulation could be accounted for (see toxicokinetic assessment).

Absorption oral (rat) = Absorption oral (human) = 10%

Absorption dermal (human) = 10%

Absorption inhalation (human) = 100%

 The DNELs for human exposure are derived according to the ECETOC guidance (Technical Report No.110, October 2010).

Starting point for DNEL derivation: NOAEL ≥1000 mg/kg bw/day from an oral 28-day study in rats (highest dose tested, no effects)

Long term inhalation, systemic effects

Route-to-route extrapolation:

Inhalation NOAEL = oral NOAEL * ABSoral-rat/ABSinh-human = 1000 * 10/100 = 100 mg/kg bw

Corrected inhalatory NOAEC = 100 * 1/1.15 = 87 mg/m3

Safety factors:

-      Interspecies extrapolation: 1

-      Intraspecies extrapolation: 5

-      Exposure duration: 6 (assuming chronic exposure of the general population)

-      Dose response: 1

-      Quality of the data base: 1

Total safety factor: 30

Based on the above, the long-term DNEL for systemic effects after inhalation exposure of the general population is set at 2.9 mg/m3

Long term dermal, system effects

Route-to-route extrapolation:

Dermal NOAEL = oral NOAEL * ABSoral-rat/ABSderm-human = 1000 * 10/10 = 1000 mg/kg bw

Safety factors:

-      Interspecies extrapolation: 4

-      Intraspecies extrapolation: 5

-      Exposure duration: 6 (assuming chronic exposure of the general population)

-      Dose response: 1

-      Quality of the data base: 1

Total safety factor: 120

Based on the above, the long-term DNEL for systemic effects after dermal exposure of the general population is set at 8.3 mg/kg bw/day.

Long-term oral, systemic effects

Safety factors:

-      Interspecies extrapolation: 4

-      Intraspecies extrapolation: 5

-      Exposure duration: 6 (assuming chronic exposure of the general population)

-      Dose response: 1

-      Quality of the data base: 1

Total safety factor: 120

Based on the above, the long-term DNEL for systemic effects after oral exposure of the general population, is set at 8.3 mg/kg bw/d