Registration Dossier
Registration Dossier
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EC number: 905-588-0 | CAS number: -
Short-term toxicity to fish
Administrative data
Link to relevant study record(s)
Description of key information
The lowest 96 hour LC50 is 2.6 mg/L for p-xylene.
Key value for chemical safety assessment
Fresh water fish
Fresh water fish
- Effect concentration:
- 2.6 mg/L
Additional information
Data are available on the acute toxicity of each of the xylene isomers and ethylbenzene to fish. The studies by Galassi et al (1988), Springborn (1994) and DiMarzio et al (2004) follow OECD 203, whilst Holcombe et al (1987) used a flow through system to expose different species simultaneously. Galassi et al (1988), Springborn (1994) and Holcombe et al (1987) used a standard test species, whilst DiMarzio et al (2004) tested a non-standard freshwater fish. All studies included analytical confirmation of the exposure concentrations. The result from Galassi et al (1988) is also the lowest result listed in the EU RAR (ECB 2007) and the Draft Screening Assessment Report (Environment Canada 2014) for acute toxicity of ethylbenzene to fish.
The 96 hour LC50 results reported from these studies are very similar, with a range of 2.6 -11.23 mg/L. The lowest result will be used in the risk assessment.
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