Registration Dossier

Diss Factsheets

Ecotoxicological information

Toxicity to aquatic algae and cyanobacteria

Currently viewing:

Administrative data

Link to relevant study record(s)

Description of key information

Key value for chemical safety assessment

EC50 for freshwater algae:
22 mg/L

Additional information

Measured information on short term toxicity to aquatic algae and cyanobacteria was not available for other gas oils, however suitable read across information from vacuum gas oils, hydrocracked gas oils and distillate fuels is available. The Shell (6304) study reported a 72 h ErL50 value of 22 mg/L for diesel fuel. Clark (2003) reported the same 72 h value when ultra low sulphur diesel was tested (EL50 = 22 mg/L). The Shell (6304) study has been chosen to represent this endpoint. It is a reliable (2),GLP compliant, near guideline study with no restrictions, it is fully adequate for assessment. The (PETROTOX) calculated LL50 is 1.714 mg/L. This endpoint has been filled by read-across of measured data from another category. It is supported in a weight of evidence approach by a calculated value using composition information derived from two dimensional gas chromatography in conjunction with the PETROTOX model.