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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Administrative data

Endpoint:
short-term toxicity to fish
Type of information:
experimental study
Adequacy of study:
other information
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1993
Report date:
1993

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 203 (Fish, Acute Toxicity Test)
Deviations:
no
GLP compliance:
yes (incl. QA statement)

Test material

Test material form:
liquid
Specific details on test material used for the study:
Purity 98.7 % [GC a/a]

Sampling and analysis

Analytical monitoring:
yes

Test solutions

Vehicle:
yes
Remarks:
TWEEN 80

Test organisms

Test organisms (species):
Danio rerio (previous name: Brachydanio rerio)
Details on test organisms:
Length at study initiation : mean total length of 32 mm (range 29 to 34 mm)

Study design

Test type:
semi-static
Water media type:
freshwater
Total exposure duration:
96 h

Test conditions

Test temperature:
22 +/- 1 °C
pH:
8.0 - 8.4
Dissolved oxygen:
5.0 - 10.0 mg/L
Nominal and measured concentrations:
Nominal concentrations: 2.2, 5, 10 and 22 mg A.l./L
Exposure concentrations: 1.525, 3.725, 7.4 and 19.05 mg A.l./L.
Reference substance (positive control):
no

Results and discussion

Effect concentrationsopen allclose all
Duration:
96 h
Dose descriptor:
LC50
Effect conc.:
7.07 mg/L
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
mortality (fish)
Duration:
96 h
Dose descriptor:
LC50
Effect conc.:
5.25 mg/L
Nominal / measured:
meas. (geom. mean)
Conc. based on:
test mat.
Basis for effect:
mortality (fish)

Applicant's summary and conclusion

Conclusions:
Under the conditions of the present acute toxicity test to fish with 4-Fluorobenzaldehyde the LC50 after an exposure period of 96 hours was determinded to be 5.25 mg/L, based on measured concentrations.