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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

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Ecotoxicological information

Sediment toxicity

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sediment toxicity: short-term
Type of information:
experimental study
Adequacy of study:
disregarded due to major methodological deficiencies
4 (not assignable)
Rationale for reliability incl. deficiencies:
documentation insufficient for assessment
Principles of method if other than guideline:
No information available
GLP compliance:
not specified
Analytical monitoring:
not specified
Test organisms (species):
Hyalella azteca
Details on test organisms:
- Common name: Scud
Study type:
laboratory study
Test type:
not specified
Water media type:
not specified
Type of sediment:
not specified
Test temperature:
23 degree C.

Details on test conditions:
The test was conducted using juveniles with 14-16 antenna segments.

18 h
Dose descriptor:
Effect conc.:
6 530 mg/L
Executive summary:

Bowman et al (1981) reported an 18-hour EC50 value of 6530 mg/L for acetonitrile in Scud, (Hyalella azteca).

sediment toxicity: long-term
Data waiving:
other justification
Justification for data waiving:

Description of key information

According to the Integrated Testing Strategy for toxicity to sediment dwelling organisms (Guidance on Information Requirements and Chemical Safety Assessment, chapter 7b, figure 7.8.8) no sediment testing is necessary for a substance with a log Kow <3. Further testing on the toxicity of acetonitrile to sediment organisms is therefore not justified, and the partitioning method can be adequately used to predict the PNEC for the sediment compartment. Bowman et al (1981) reported an 18-hour EC50 value of 6530 mg/L for acetonitrile in Hyalella azteca (Scud), however due to limited information being available on the study, this data is not considered reliable and is therefore disregarded.

Key value for chemical safety assessment

Additional information