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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Diss Factsheets

Ecotoxicological information

Short-term toxicity to aquatic invertebrates

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Administrative data

Endpoint:
short-term toxicity to aquatic invertebrates
Type of information:
experimental study
Adequacy of study:
other information
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
guideline study without detailed documentation

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1979

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
other: EPA-660/3-75-009
GLP compliance:
no

Test material

Test material form:
liquid
Details on test material:
Clear colourless liquid
Specific details on test material used for the study:
Purity: not reported
Colourless, transparent liquid

Test solutions

Vehicle:
yes
Remarks:
Acetone

Test organisms

Test organisms (species):
Daphnia magna
Details on test organisms:
- Strain: Daphnia magna Straus
- Source: Union Carbide Environmental Services, Tarrytown, NY (original population of laboratory stock culture obtained from the EPA Environmental Research Laboratory, Duluth, Minnesota US)
- Age: less than 20 hours old
- Feeding: One hour before the test they were fed. No food was administered during the test.

Study design

Test type:
static
Water media type:
freshwater
Total exposure duration:
48 h

Test conditions

Hardness:
202 mg/L
Test temperature:
20 +/- 2 °C
pH:
8.39
Nominal and measured concentrations:
Nominal: 1.8, 3.2, 5.6, 10.0 and 18.0 mg/L

Results and discussion

Effect concentrationsopen allclose all
Duration:
48 h
Dose descriptor:
NOEC
Effect conc.:
3.2 mg/L
Nominal / measured:
nominal
Conc. based on:
test mat.
Duration:
48 h
Dose descriptor:
EC50
Effect conc.:
10.2 mg/L
Nominal / measured:
nominal
Conc. based on:
test mat.

Applicant's summary and conclusion

Conclusions:
Under the conditions of this test the EC50 (48h) of 3,4-Dichlorobenzotrifluoride was determined to be 10.2 mg/L.