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Ecotoxicological information

Toxicity to terrestrial arthropods

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Description of key information

Key value for chemical safety assessment

Additional information

Fourteen chronic data are available for 1 species of arthropod soil invertebrate exposed to a variety of natural EU and North American soils. Reliable chronic NOEC/EC10 values range from 14.3 to 1000 mg added Co/kg dw for reproduction by the springtail, Folsomia candida (De Schamphelaere et al, 2005; Lock et al., 2004). Below is the accepted high quality arthropod soil macro-organism study, for both the added cobalt and total cobalt values, used for derivation of the HC5 and terrestrial PNEC.

 

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

Key Study

(Soil macro-organisms)

Selected values for the most sensitive endpoints used for derivation of the terrestrial HC5

Species

Added NOEC or EC10 (mg Co/kg dw)

Total NOEC or EC10 (mg Co/kg dw)

De Schamphelaere et al., 2008

Lock et al., 2004

Nota et al., 2010

Folsomia candida

14.3-1000

16.3-1000

 

Long-term EC10/LC10 or NOEC for soil dwelling anthropods: 14.3 -1000 mg/kg soil dw (Added Co).