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Diss Factsheets

Ecotoxicological information

Toxicity to soil macroorganisms except arthropods

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Administrative data

Link to relevant study record(s)

Description of key information

OECD 207: 
- LC50(14-d): >1000 mg/kg dw test mat. 'Distillates (Fischer-Tropsch), C8-26-branched and linear' (nominal) based on: mortality;
- NOEC (14-d): ≥1000 mg/kg dw test mat. 'Distillates (Fischer-Tropsch), C8-26-branched and linear' (nominal) based on: mortality.
OECD 222: OECD (28-d): ≥1000 mg/kg dw test mat. 'Distillates (Fischer-Tropsch), C8-26-branched and linear' (nominal) based on: survival and reproduction.

Key value for chemical safety assessment

Additional information

No data are available for toxicity of GTL Kerosine to soil macroorganisms. However, an acute earthworm toxicity study is available for the related substance, GTL Gasoil (Priestly, 2010b). The test was conducted in accordance with OECD 207 and GLP. Earthworms (Eisenia foetida) were exposed to a single concentration of GTL Gasoil at a nominal loading rate of 1000 mg/kg of soil (dry weight) for a period of 14 days. There were no significant mortalities or sub-lethal effects during the 14-day exposure period.

The 14-d acute LC50for earthworms was therefore determined to be greater than 1000 mg/kg dw.

In addition, an earthworm reproduction study, conducted in accordance with OECD 222 and GLP has also been performed with GTL Gasoil (Schmidt, 2010). The NOEC of this study based on survival, growth and reproduction parameters was at least 1000 mg/kg dw.

The following information is taken into account for toxicity to terrestrial macroorganisms: (28-d) NOEC ≥1000 mg/kg dw E. foetida.

Value used for CSA:

- Short-term LC50for soil macroorganisms: >1000 mg/kg dw;

- Long-term NOEC for soil macroorganisms: ≥1000 mg/kg dw.