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Ecotoxicological information

Toxicity to soil macroorganisms except arthropods

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Description of key information

The lowest NOEC values of 258 and 433 mg barium/kg soil dw were put forward for the derivation of a terrestrial PNEC. 258 mg Ba/kg soil dw refers to 391 mg BaCl2/kg soil dw.

Key value for chemical safety assessment

Long-term EC10, LC10 or NOEC for soil macroorganisms:
391 mg/kg soil dw

Additional information

Kuperman et al (2006) reported reliable NOEC-values for barium (added as barium nitrate) for two different soil macro-organisms (E. fetida, E. crypticus). The derived effect values were based on ecological relevant endpoints (mortality and reproduction). Reproduction was the most sensitive endpoint, and NOEC-values were 258 and 433 mg barium/kg soil dw for E. fetida and E. crypticus, respectively.