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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:
1.6-3.6.1992 and 10.6-13.6.1992
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: The study and data are well documented and scientifically acceptable.

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1992
Report date:
1992

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 202 (Daphnia sp. Acute Immobilisation Test)
GLP compliance:
not specified

Test material

Reference
Name:
Unnamed
Type:
Constituent

Test organisms

Test organisms (species):
Daphnia magna

Study design

Total exposure duration:
24 h

Results and discussion

Effect concentrations
Duration:
24 h
Dose descriptor:
EC50
Effect conc.:
> 2 500 mg/L

Applicant's summary and conclusion

Executive summary:

The product has a low toxicity to the aquatic organisms tested. The calculated EC50 and LC50 values show that all products had low toxic effects on daphnia. For Iodixanol, sufficient immobilisation for calculation of EC50 was not obtained in the concentration range tested. Testing at higher concentrations was complicated due to precipitation in the test solutions and was considered unnecessary because of low toxicity.