Cyclohex-3-ene-1-carbaldehyde

Short-term toxicity to aquatic invertebrates

Link to relevant study record(s)

Reference

Endpoint:

short-term toxicity to aquatic invertebrates

Type of information:

experimental study

Adequacy of study:

key study

Study period:

1997-10-17 till 1997-10-23

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

guideline study with acceptable restrictions

Remarks:

e.g. no annalytical monitoring.

Qualifier:

equivalent or similar to guideline

Guideline:

EU Method C.2 (Acute Toxicity for Daphnia)

Deviations:

no

GLP compliance:

yes

Analytical monitoring:

no

Details on sampling:

Concentration: 100 mg/L nominal

Vehicle:

no

Details on test solutions:

- direct weighing
- 0.0994 g of test item in 1 litre of dilution water
- The solution wastreated of 60 seconds at 8000 rpm with an ultra turrax
- Afterwards it was measured for 3 hours on a magnetic stirrer
- The pH value was measured to be 8.0

Test organisms (species):

Daphnia magna

Test type:

static

Water media type:

freshwater

Limit test:

yes

Total exposure duration:

48 h

Test temperature:

temperature range: 19.5 - 19.9

pH:

7.6

Dissolved oxygen:

8.5 - 9.1 mg/L O2

Nominal and measured concentrations:

- nominal: control and 100 mg/L
- pretested measurement: control and 1, 3.2, 10, 31.6 and 100 mg/L
- measured: control and 10, 20, 40, 50 and 80 mg/L

Reference substance (positive control):

no

Duration:

48 h

Dose descriptor:

EC0

Effect conc.:

20 mg/L

Nominal / measured:

nominal

Conc. based on:

test mat.

Basis for effect:

mobility

Duration:

48 h

Dose descriptor:

EC100

Effect conc.:

80 mg/L

Nominal / measured:

nominal

Conc. based on:

test mat.

Basis for effect:

mobility

Key result

Duration:

48 h

Dose descriptor:

EC50

Remarks:

Calculated by geometric mean of EC0 and EC100

Effect conc.:

40 mg/L

Nominal / measured:

nominal

Conc. based on:

test mat.

Basis for effect:

mobility

Geometric mean: EC 0 / EC 100 : 40 mg/L

Validity criteria fulfilled:

not specified

Conclusions:

The acute toxicity of cyclohex-3-ene-1-carbaldehyde to aquatic invertebrates (Daphnia magna) was tested equivalent or similar to EU method C.2 'acute toxicity for Daphnia'. During 48 hours exposure, an EC50 of 40 mg/L was obtained.

Executive summary:

The acute toxicity of cyclohex-3-ene-1-carbaldehyde to aquatic invertebrates (Daphnia magna) was tested equivalent or similar to EU method C.2 'acute toxicity for Daphnia'. During 48 hours exposure, an EC50 of 40 mg/L was obtained.

Description of key information

The acute toxicity of cyclohex-3-ene-1-carbaldehyde to aquatic invertebrates (Daphnia magna) was tested equivalent or similar to EU method C.2 'acute toxicity for Daphnia'. During 48 hours exposure, an EC50 of 40 mg/L was obtained.

Key value for chemical safety assessment

Fresh water invertebrates

Fresh water invertebrates

Dose descriptor:

EC50

Effect concentration:

40 mg/L