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Ecotoxicological information

Toxicity to terrestrial plants

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Toxicity to terrestrial plants:
Results of studies with di-isodecyl phthalate ester (DIDP; CAS #68515-49-1) show that DIDP will not produce toxicity to terrestrial plants at high soil loading rates: 5 d NOEC (germination) for ryegrass (Lolium species) = 8630 mg/kg; 5 d NOEC (germination) for lettuce (Lactuca sativa) = 8630 mg/kg

Key value for chemical safety assessment

Additional information

The data used to characaterize the terrestrial plant toxicity of di-isodecyl phthalate ester (DIDP; CAS #68515-49-1) show that DIDP does not cause toxicity to terrestrial plants at a high soil loading level, 8630 mg/kg, based on germination. The terrestrial plant toxicity dataset includes results for two species, Lolium species and Lactuca sativa.

Studies are not available to asses the chronic toxicity of DIDP to plants. However, DIDP has been shown to be readily biodegradable, which suggests it will be rapidly degraded in the environment, and applications do not directly apply DIDP to soil. As acute studies in plants show no effects at high soil loading levels and acute and chronic studies with other terrestrial organisms also show no effects at the highest soil loading levels tested, chronic effects to terrestrial plants are not expected. This is supported by QSAR estimations of no long-term effects to plant species at very high soil loading levels. Additionally, guidelines on information requirements state that testing for soil organisms is not needed if a substance is readily biodegradable and is not directly applied to soil.