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
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2019
Report Date:
2019

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

Sampling and analysis

Analytical monitoring:
yes

Test solutions

Vehicle:
not specified

Results and discussion

Effect concentrations
Duration:
48 h
Dose descriptor:
EC50
Effect conc.:
>= 100 mg/L
Details on results:

The 48-hours EC50 value was not determined because the highest tested concentration of 1,2,4,5-tetramethyl-1H-imidazole, 100 mg.L-1, caused only 30% immobility to the organisms during 48 hours of exposure. Therefore the 48-hours EC50 value of the tested item is higher than 100 mg.L-1.

Applicant's summary and conclusion

Validity criteria fulfilled:
yes
Conclusions:
EC50>100 mg.L-1