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Ecotoxicological information

Long-term toxicity to aquatic invertebrates

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Administrative data

Endpoint:
long-term toxicity to aquatic invertebrates
Type of information:
experimental study
Adequacy of study:
other information
Reliability:
4 (not assignable)
Rationale for reliability incl. deficiencies:
other: Only secondary literature was available!

Data source

Reference
Reference Type:
publication
Title:
Maleic Anhydride and Maleic Acid
Author:
UNEP
Year:
2005
Bibliographic source:
Published OECD SIDS initial assessments of HPV chemicals (2005)

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
other: Umweltbundesamt, Berlin (February 1984)
GLP compliance:
no

Test material

Reference
Name:
Unnamed
Type:
Constituent
Details on test material:
Maleic anhydride hydrolyses under test conditions. As a result it is believed that maleic acid and its sodium salt were the test materials investigated in this study.

Sampling and analysis

Analytical monitoring:
not specified
Details on sampling:
no data

Test solutions

Vehicle:
no
Details on test solutions:
no data

Test organisms

Test organisms (species):
Daphnia magna
Details on test organisms:
no data

Study design

Test type:
static
Water media type:
freshwater
Limit test:
no
Total exposure duration:
21 d
Post exposure observation period:
no data

Test conditions

Hardness:
no data
Test temperature:
no data
pH:
no data
Dissolved oxygen:
no data
Salinity:
no data
Nominal and measured concentrations:
no data
Details on test conditions:
no data
Reference substance (positive control):
not required

Results and discussion

Effect concentrationsopen allclose all
Duration:
21 d
Dose descriptor:
EC50
Effect conc.:
77 mg/L
Nominal / measured:
not specified
Conc. based on:
test mat.
Basis for effect:
reproduction
Duration:
21 d
Dose descriptor:
NOEC
Effect conc.:
10 mg/L
Nominal / measured:
not specified
Conc. based on:
test mat.
Basis for effect:
reproduction
Details on results:
no data
Reported statistics and error estimates:
no data

Applicant's summary and conclusion

Validity criteria fulfilled:
no
Remarks:
only secondary literature