Acetaldehyde

Short-term toxicity to fish

Administrative data

Endpoint:

short-term toxicity to fish

Type of information:

experimental study

Adequacy of study:

supporting study

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

other: Meets national standard methods (DIN) with acceptable restrictions

Cross-reference

Reason / purpose for cross-reference:

reference to same study

Data source

Reference

Reference 1

Reference Type:

grey literature

Title:

Unnamed

Year:

1985

Reference 2

Reference Type:

grey literature

Title:

Unnamed

Year:

1979

Materials and methods

Test guideline

Qualifier:

according to guideline

Guideline:

other: DIN 38 412, part 15

GLP compliance:

no

Test material

Test material information

Constituent 1

Reference substance name:

Acetaldehyde

EC Number:

200-836-8

EC Name:

Acetaldehyde

Cas Number:

75-07-0

Molecular formula:

C2H4O

IUPAC Name:

acetaldehyde

Details on test material:

- Name of test material (as cited in study report): Acetaldehyd
- Substance type: active substance

Sampling and analysis

Analytical monitoring:

not specified

Test solutions

Vehicle:

not specified

Test organisms

Test organisms (species):

Leuciscus idus melanotus

Details on test organisms:

TEST ORGANISM
- Common name: Golden orfe
- Length at study initiation: 5 to 8 cm
- Method of breeding: At 15+/- 5°C in aerated, dechlorinated tap water
- Feeding during breeding
- Food type: Fish dry food
- Feeding during test: No



ACCLIMATION
- Acclimation period: At lest three days before the start of the test
- Acclimation conditions: same as test

Study design

Test type:

static

Water media type:

freshwater

Limit test:

no

Total exposure duration:

48

Test conditions

Test temperature:

20 +/- 1°C

Dissolved oxygen:

at least 5 mg/L

Nominal and measured concentrations:

not reported

Details on test conditions:

TEST SYSTEM
- Test vessel:
- Type: open
- Material, size, headspace, fill volume: glass vessels, 24*32*22 cm with a total volume of 17 litres, filled with 10 litres of test medium
- Aeration: no
- No. of organisms per vessel: 10 animals per vessel
- No. of vessels per concentration (replicates): 1
- No. of vessels per control (replicates): 1
- Biomass loading rate: 1.0 +/-0.1 g/cm³

TEST MEDIUM / WATER PARAMETERS
- Source/preparation of dilution water: dechlorinated tap water
- Ca/mg ratio: 4:1
- Culture medium different from test medium: no


OTHER TEST CONDITIONS
- Adjustment of pH: if necessary by adding sulfuric acid or hydrogen carbonat solution, respectively.


EFFECT PARAMETERS MEASURED (with observation intervals if applicable) : mortality, observed daily

Reference substance (positive control):

not specified

Results and discussion

Effect concentrations

Effect concentrations 1

Duration:

48 h

Dose descriptor:

LC0

Effect conc.:

3.9 other: rating number as stated in the report, given as the negative decadic logarithm of the LC0

Nominal / measured:

nominal

Conc. based on:

test mat.

Basis for effect:

mortality (fish)

Effect concentrations 2

Duration:

48 h

Dose descriptor:

LC0

Effect conc.:

125.9 mg/L

Nominal / measured:

nominal

Conc. based on:

test mat.

Basis for effect:

mortality (fish)

Remarks on result:

other: converted value of the rating number

Applicant's summary and conclusion

Validity criteria fulfilled:

not specified

Conclusions:

The toxicity threshold of acetaldehyde to the Golden orfe was determined to be 125.9 mg/l.