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Ecotoxicological information

Short-term toxicity to aquatic invertebrates

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Administrative data

Endpoint:
short-term toxicity to aquatic invertebrates
Type of information:
experimental study
Adequacy of study:
key study
Study period:
1993-08-03 -- 1993-08-05
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: No details of test solution. No statistical data.

Data source

Reference
Reference Type:
other: Body responsible for the test
Title:
Unnamed
Report Date:
1993

Materials and methods

Test guideline
Qualifier:
according to
Guideline:
other: EEC method C2
GLP compliance:
yes

Test material

Reference
Name:
Unnamed
Type:
Constituent
Details on test material:
Fine white powder, purity > 98 %.

Sampling and analysis

Analytical monitoring:
yes

Test solutions

Vehicle:
no
Details on test solutions:
No details.

Test organisms

Test organisms (species):
other aquatic crustacea: DM
Details on test organisms:
Daphnia Magna < 24 h old. 20 individuals.

Study design

Test type:
semi-static
Water media type:
freshwater
Limit test:
yes
Total exposure duration:
48 h
Post exposure observation period:
None

Test conditions

Hardness:
CA 250 mg CaCO3/L
Test temperature:
20 ± 1 °C
pH:
7.8-7.9
Dissolved oxygen:
97%

Results and discussion

Effect concentrations
Duration:
48 h
Dose descriptor:
NOEC
Effect conc.:
>= 0.05 mg/L

Applicant's summary and conclusion

Conclusions:
No effect on the test organism under the solubility limit of 0.05 mg/l. The NOEC value was not possible to detemine. The Gelpaste Urea is not expected to be acute toxic to invertebrates.