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Ecotoxicological information

Short-term toxicity to fish

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Description of key information

The 96hr LC50 of benzyl butyl phthalate to Cymatogaster aggregata was 0.51 mg/L

Key value for chemical safety assessment

Additional information

Ozretich et. al (1983) performed a 96 hr flow-through test on the saltwater fish Cymatogaster aggregata. This test was performed to a standard guideline (ASTM). The LC50 was determined to be 0.51 mg/L. This test is used as a key study for the fulfilment of this endpoint.

Adams et al. (1995) performed a several 96 h tests (static and flow-though) on Sheephead minnows, Fatehead minnows, Bluegill sunfish and Rainbow trout. The most conservative result came from Sheephead minnows (Cyprinodon variegatus). This test closely followed a standard guideline (OECD 203). The LC50 was determined to be >0.68 mg/L. This test is used as a supporting study for the fulfilment of this endpoint.

Gledhill et al. (1980) performed 96 -hour static tests on four fish species (fathead minnow, bluegill, rainbow trout and sheepshead minnow). LC50s ranged from 1.7 - 5.3 mg/L. The studies are from a review article and there is limited detail on the methods used, however they can be used as supporting information for the fulfilment of this endpoint.

A number of other proprietary studies are available and are used as supporting studies. These report LC50 values of 1.7 - 3.3 mg/L for a variety of fish species.