Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Ecotoxicological information

Ecotoxicological Summary

Currently viewing:

Administrative data

Hazard for aquatic organisms

Freshwater

Hazard assessment conclusion:
PNEC aqua (freshwater)
PNEC value:
0.62 µg/L
Assessment factor:
3
Extrapolation method:
sensitivity distribution

Marine water

Hazard assessment conclusion:
PNEC aqua (marine water)
PNEC value:
2.36 µg/L
Assessment factor:
3
Extrapolation method:
sensitivity distribution

STP

Hazard assessment conclusion:
PNEC STP
PNEC value:
0.37 mg/L
Assessment factor:
10
Extrapolation method:
assessment factor

Sediment (freshwater)

Hazard assessment conclusion:
PNEC sediment (freshwater)
PNEC value:
53.8 mg/kg sediment dw
Assessment factor:
10
Extrapolation method:
sensitivity distribution

Sediment (marine water)

Hazard assessment conclusion:
PNEC sediment (marine water)
PNEC value:
69.8 mg/kg sediment dw
Assessment factor:
10
Extrapolation method:
sensitivity distribution

Hazard for air

Air

Hazard assessment conclusion:
no hazard identified

Hazard for terrestrial organisms

Soil

Hazard assessment conclusion:
PNEC soil
PNEC value:
10.9 mg/kg soil dw
Assessment factor:
2
Extrapolation method:
sensitivity distribution

Hazard for predators

Secondary poisoning

Hazard assessment conclusion:
no potential for bioaccumulation

Additional information

Conclusion on classification

The lowest available acute reference values are:

Algae, Pseudokirchneriella subcapitata (following OECD Method 201)

EC50: 2.4 mg/L (0.27 mg Co/L)

Invertebrate, Daphnia magna (following OECD Method 202)

EC50: >11.0 mg/L (>1.2 mg Co/L)

Fish,Onchorynchus mykiss (following OECD Method 203)

EC50: 6.1 mg/L (0.68 mg Co/L)

Data indicate no classification required

Available chronic EC10 value for algae is:

Algae,Pseudokirchneriella subcapitata (following OECD Method 201)

EC10: 0.71 mg/L (0.081 mg Co/L)

Fish, Pimephales promelas (following OECD Method 210)

EC10: 1.9 mg/L (0.21 mg Co/L)

No compound specific chronic data are available for invertebrate species

Chronic data for algae classify substance as Chronic 2 or 3 depending on Unit World Model (UWM). The EU CLP guidance document (ECHA, 2011) permits consideration of the “rapid removal” and sequestration of metals in the environment much the same way as the concept of “rapid degradation” is considered for organic chemicals. To indicate “rapid removal’ for a metal, it is assumed that one must demonstrate greater than 70% removal of soluble metal within 28 days of addition to the water column, as is the case with organic compounds. Furthermore, one must demonstrate that the potential for metal remobilisation from sediments is limited, for example by changes in metal speciation, remineralisation and permanent burial in the sediment. If these conditions are met, the metal is considered “rapidly removable” and poses little environmental risk. Results of modelling using the UWM indicate that the cobalt ion satisfies the requirements for “rapid” metals removal, i.e., > 70% removal from the water column in 28 days, and the demonstration of limited sediment remobilisation potential under most environmental conditions.

Acute data available for invertebrates, but do not drive more severe chronic classification

under surrogate scheme than algal chronic data

There is no evidence for bioaccumulation or biomagnification in the environment

Proposed self-classification:

Chronic 3 if UWM is used