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Diss Factsheets

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:
2003
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
study well documented, meets generally accepted scientific principles, acceptable for assessment
Remarks:
reduced exposure period of 24 hours

Data source

Reference
Reference Type:
publication
Title:
Toxicity of fluoranthene and its biodegradation metabolites to aquatic organisms
Author:
Ester Sepic, Mihael Bricelj, Hermina Leskovsek
Year:
2003
Bibliographic source:
Chemosphere 52 (2003) 1125–1133
Report date:
2003

Materials and methods

Test guideline
Guideline:
other: ISO 6341
Principles of method if other than guideline:
Reduced exposure period of 24 hours
GLP compliance:
not specified

Test material

Constituent 1
Chemical structure
Reference substance name:
Fluoren-9-one
EC Number:
207-630-7
EC Name:
Fluoren-9-one
Cas Number:
486-25-9
Molecular formula:
C13H8O
IUPAC Name:
9H-fluoren-9-one
Test material form:
not specified
Specific details on test material used for the study:
no data

Sampling and analysis

Analytical monitoring:
not specified

Test organisms

Test organisms (species):
Daphnia magna

Study design

Test type:
static
Limit test:
no
Total exposure duration:
24 d

Test conditions

Test temperature:
20 °C
pH:
7.8 +/- 0.2
Dissolved oxygen:
saturation
Nominal and measured concentrations:
59 - 5.9 mg/L
Details on test conditions:
Test Solution contained:
CaCl2 = 294 mg/L
MgSO4 x 7H2O = 123.3 mg/L
NaHCO3 = 64.8 mg/L
KCl = 5.8 mg/L

4 concentrations
4 controls

20 mL of test solution

5 daphnids per sample 24 h old

Results and discussion

Effect concentrations
Duration:
24 h
Dose descriptor:
other: E(L)C50 (24 h)
Effect conc.:
15 mg/L
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
mobility

Applicant's summary and conclusion

Conclusions:
E(L)C50 (24 h) = 15 mg/L