Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Hazard for aquatic organisms

Freshwater

Hazard assessment conclusion:
PNEC aqua (freshwater)
PNEC value:
0.003 mg/L
Assessment factor:
100
Extrapolation method:
assessment factor
PNEC freshwater (intermittent releases):
0.068 mg/L

Marine water

Hazard assessment conclusion:
PNEC aqua (marine water)
PNEC value:
0 mg/L
Assessment factor:
1 000
Extrapolation method:
assessment factor

STP

Hazard assessment conclusion:
PNEC STP
PNEC value:
7.41 mg/L
Assessment factor:
100
Extrapolation method:
assessment factor

Sediment (freshwater)

Hazard assessment conclusion:
PNEC sediment (freshwater)
PNEC value:
0.013 mg/kg sediment dw
Extrapolation method:
equilibrium partitioning method

Sediment (marine water)

Hazard assessment conclusion:
PNEC sediment (marine water)
PNEC value:
0.001 mg/kg sediment dw
Extrapolation method:
equilibrium partitioning method

Hazard for air

Air

Hazard assessment conclusion:
no hazard identified

Hazard for terrestrial organisms

Soil

Hazard assessment conclusion:
PNEC soil
PNEC value:
0.001 mg/kg soil dw
Extrapolation method:
equilibrium partitioning method

Hazard for predators

Secondary poisoning

Hazard assessment conclusion:
no potential for bioaccumulation

Additional information

The PNECs have been calculated based on the approach and assessment factors given by REACH Guidance Chaper R.10: Characterisation of dose [concentration]-response for environment.

 

The aquatic PNEC for fresh water was based on the result of the long-term Daphnia reproduction study, based on the following approach taken from table R.10-4 of REACH Guidane R.10:

 

“If the only available long-term result (e.g. EC10 or NOECs) is from a species (standard or non-standard organism) which does not have the lowest L(E)C50 from the short-term tests, it cannot be regarded as protective of other more sensitive species using the assessment factors available. Thus the hazard assessment is based on the short-term data with an assessment factor of 1000. However, the resulting PNEC based on short-term data may not be higher than the PNEC based on the long-term result available.”

 

The acute fish study has the lowest acute L(E)C50 of 6.8 mg/L, this with an AF of 1000 gives rise to a PNEC of 0.0068 mg/L.

The long term NOEC for daphnia was shown to be 0.26 mg/L, which with an AF of 100 gives a PNEC of 0.0026 mg/L.

According to the above, despite the long term study being performed on a species which did not have the lowest acute L(E)C50, the lowest PNEC prevails and therefore the PNEC should be 0.0026 mg/L

The aquatic PNEC for marine water was also based on the result of the long-term Daphnia reproduction study, based on the approach taken from Table R.10-5 of REACH Guidance R.10. This follows the freshwater approach i.e. PNEC based on long term result and assessment factor is lower than the PNEC obtained based on lowest acute result.

Conclusion on classification

The substance is classified according to the environment according to CLP as Chronic Category 3 based on the result of the long term Daphnia study (NOEC 0.26 mg/L).

The criteria for Chronic Category 3 classification for rapidly degradable substances for which there are adequate chronic toxicity data is: Chronic NOEC (for crustacea) >0.1 to <= 1 mg/L.