Registration Dossier

Ecotoxicological information

Short-term toxicity to aquatic invertebrates

Administrative data

Endpoint:
short-term toxicity to aquatic invertebrates
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2012-2013
Reliability:
1 (reliable without restriction)

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2013
Report Date:
2013

Materials and methods

Test guideline
Qualifier:
according to
Guideline:
OECD Guideline 202 (Daphnia sp. Acute Immobilisation Test)
GLP compliance:
yes (incl. certificate)

Test material

Reference
Name:
Unnamed
Type:
Constituent
Test material form:
solid: particulate/powder
Remarks:
migrated information: powder
Details on test material:
see study report

Sampling and analysis

Analytical monitoring:
yes

Test solutions

Vehicle:
not specified

Test organisms

Test organisms (species):
Daphnia magna

Study design

Test type:
static
Water media type:
freshwater
Limit test:
yes
Total exposure duration:
48 h
Post exposure observation period:
24 and 48 h

Test conditions

Test temperature:
room temperature
pH:
Not determined
Reference substance (positive control):
yes
Remarks:
1.2-Dimethoxyethane

Results and discussion

Effect concentrationsopen allclose all
Duration:
24 h
Dose descriptor:
EL10
Effect conc.:
ca. 33.47 mg/L
Nominal / measured:
nominal
Conc. based on:
dissolved
Remarks:
50-130 mg/L
Basis for effect:
mobility
Remarks on result:
other: 24.22-40.05
Duration:
24 h
Dose descriptor:
other: EL 20
Effect conc.:
ca. 38.49 mg/L
Nominal / measured:
nominal
Conc. based on:
dissolved
Remarks:
50-130 mg/L
Basis for effect:
mobility
Remarks on result:
other: 29.69-45.08
Duration:
24 h
Dose descriptor:
EL50
Effect conc.:
ca. 50.29 mg/L
Nominal / measured:
nominal
Conc. based on:
dissolved
Remarks:
50-130 mg/L
Basis for effect:
mobility
Remarks on result:
other: 42.52-58.30
Duration:
24 h
Dose descriptor:
other: LOEL
Effect conc.:
ca. 80 mg/L
Nominal / measured:
nominal
Conc. based on:
not specified
Basis for effect:
mortality
Duration:
24 h
Dose descriptor:
other: NOEL
Effect conc.:
ca. 40 mg/L
Nominal / measured:
nominal
Conc. based on:
not specified
Basis for effect:
not specified
Duration:
48 h
Dose descriptor:
EL10
Effect conc.:
ca. 18.64 mg/L
Nominal / measured:
nominal
Conc. based on:
dissolved
Remarks:
50-130 mg/L
Basis for effect:
mobility
Remarks on result:
other: 13.43-22.11
Duration:
48 h
Dose descriptor:
other: EL20
Effect conc.:
ca. 21.24 mg/L
Nominal / measured:
nominal
Conc. based on:
dissolved
Remarks:
50-130 mg/L
Basis for effect:
mobility
Remarks on result:
other: 16.45-24.76
Duration:
48 h
Dose descriptor:
EL50
Effect conc.:
ca. 27.27 mg/L
Nominal / measured:
nominal
Conc. based on:
dissolved
Remarks:
50-130 mg/L
Basis for effect:
mobility
Remarks on result:
other: 23-19-32.14
Duration:
48 h
Dose descriptor:
other: LOEL
Effect conc.:
ca. 40 mg/L
Nominal / measured:
nominal
Conc. based on:
not specified
Basis for effect:
not specified
Duration:
48 h
Dose descriptor:
other: NOEL
Effect conc.:
ca. 20 mg/L
Nominal / measured:
nominal
Conc. based on:
not specified
Basis for effect:
not specified

Applicant's summary and conclusion

Validity criteria fulfilled:
yes
Conclusions:
In the control without any test item no dead animals were observed. In the test solutions the oxygen concentration did not drop below a value of 60% of saturation value ( ≈ 5 mgO2/L).