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Soil toxicity studies of zinc bis(2-ethylhexanoate) are not available. Thus, read-across to the assessment entities soluble zinc substances and 2-ethylhexanoic acid is applied since the ions of zinc bis(2-ethylhexanoate) determine its fate and toxicity in the environment.

Zinc: Chronic toxicity data are available for soil macro-organisms, plants and micro-organisms and the lowest respective endpoints are as follows: EC10 (42-d) = 35.7 mg Zn/kg soil dw (annelid, E. albidus), EC10 (28-d) = 14.6 mg Zn/kg soil dw (collembolan, F. candida), NOEC (24-d) = 32 mg Zn/kg soil dw (plant, V. sativa) and a NOEC (45-d) = 17 mg Zn/kg soil dw (microorganism, respiration), respectively.

2 -ethylhexanoic acid: Soil toxicity data of 2-ethylhexanoate are not available. However, the potential for aquatic toxicity is low and the QSAR-based estimate for earthworms (Ecosar V. 2.0) points to very low (if any) potential for toxicity to soil organisms. In addition, 2-ethylhexanoic acid is readily biodegradable and degrades during STP processes so that soil exposure is highly unlikely.


In sum, zinc bis(2-ethylhexanoate) seems to have some potential for toxicity to soil organisms.

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