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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

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Ecotoxicological information

Toxicity to soil macroorganisms except arthropods

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Administrative data

Link to relevant study record(s)

Description of key information

Key value for chemical safety assessment

Additional information

In total, 16 chronic data are available for 3 different species of non-arthropod soil invertebrates exposed to natural EU and North American soils. Reliable chronic NOEC/EC10 values for reproductive success range from 52 to 1091 mg added Co/kg dw, both results observed for reproduction by the pot worm Enchytraeus albidus (De Schamphelaere et al, 2008). Below are the accepted high quality studies for non-arthropod soil macro-organisms, for both the added cobalt and total cobalt values, used to calculate a geometric mean for derivation of the HC5 and terrestrial PNEC.

Table. High quality studies for non-arthropod soil macro-organisms used for derivation of the HC5 and terrestrial HC5



Added NOEC or EC 10 (mg Co/Kg dw)

Total NOEC or EC10 (mg Co/Kg dw)

 De Schamphelaere at al., 2008

 Eisenia fetida

 56 -426

 58 -437

 De Schamphelaere et al.; 2008

 Enchytraeus albidus

 52 -1091

 53 -1121

 Velicogna et al., 2010

 Eisenia andrei



Value used for CSA: Long-term EC10/LC10 or NOEC for soil non-arthropods: 52 -1091 mg/kg soil dw (added Co).