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Ecotoxicological information

Sediment toxicity

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Description of key information

Sediment toxicity:
Results of studies with di-isodecyl phthalate ester (DIDP; CAS #68515-49-1) show that DIDP will not produce toxicity to sediment dwellers at high sediment loading rates: 14-da NOEC (growth / survival) for Hyalella azteca = 2090 mg/kg; 14-da NOEC (growth / survival) for Chironomus tentans = 2630 mg/kg; 14-da NOEC (egg hatching) for Rana arvalis = 659 mg/kg; 29-da NOEC (growth / survival) for Rana arvalis = 659 mg/kg

Key value for chemical safety assessment

Additional information

The data used to characterize the sediment toxicity of di-isodecyl phthalate ester (DIDP; CAS #68515-49-1) are consistent with the data for several high molecular weight phthalate diesters summarized by Call et al. (2001). These data show that high molecular weight phthalate diesters do not produce toxicity to sediment dwellers at high sediment loading rates. The sediment invertebrate dataset includes results for three species, Chironomus tentans, Hyalella azteca, and Rana arvalis.

Call et al. (2001). An assessment of the toxicity of phthalate esters to freshwater benthos. 2. Sediment expousres. Environ. Toxicol. Chem. 20(8): 1805 -1815.