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Ecotoxicological information

Short-term toxicity to fish

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Link to relevant study record(s)

Description of key information

Acute studies with two fish species are available.  

Key value for chemical safety assessment

Fresh water fish

Fresh water fish
Effect concentration:
0.707 mg/L

Additional information

A 96 hour acute study with Oryzias latipes was conducted with the mixed isomers (meta and para) of diisopropylbenze (DIPB) under semi-static conditions. The test solutions were prepared using a solvent carrier with resulting test concentrations that exceeded the water solubility of the substance. The test resulted in a LC50 of 0.707 mg/L and a LC0 of 0.25 mg/L based upon mean measured concentrations. Another 96 hour acute study was conducted with m-DIPB and Pimephales promelas as a limit test using a recirculating column elution apparatus providing a constant saturated solution. No mortality (NOEC) was observed in this test at at the mean measured concentration of 0.91 mg/L. The results of these studies suggest no acute effects to fish at the limit of water solubility.