Registration Dossier

Ecotoxicological information

Toxicity to aquatic algae and cyanobacteria

Administrative data

Endpoint:
toxicity to aquatic algae and cyanobacteria
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2011
Reliability:
1 (reliable without restriction)

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2011

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
ISO 8692 (Water Quality - Fresh Water Algal Growth Inhibition Test with Scenedesmus subspicatus and Selenastrum capricornutum)
Version / remarks:
Méthode LSEH EE_008
GLP compliance:
no
Remarks:
But COFRAC compliance laboratory

Test material

Constituent 1
Chemical structure
Reference substance name:
1-bromo-3-chloropropane
EC Number:
203-697-1
EC Name:
1-bromo-3-chloropropane
Cas Number:
109-70-6
Molecular formula:
C3H6BrCl
IUPAC Name:
1-bromo-3-chloropropane

Test organisms

Test organisms (species):
Pseudokirchneriella subcapitata (previous names: Raphidocelis subcapitata, Selenastrum capricornutum)

Test conditions

Reference substance (positive control):
yes

Results and discussion

Effect concentrationsopen allclose all
Duration:
72 h
Dose descriptor:
EC10
Effect conc.:
175 mg/L
Conc. based on:
test mat.
Basis for effect:
growth rate
Remarks on result:
other: Confidence interval 95% : [67-300]
Duration:
72 h
Dose descriptor:
EC50
Effect conc.:
847 mg/L
Conc. based on:
test mat.
Basis for effect:
growth rate
Remarks on result:
other: Confidence interval 95% : [621-1416]

Applicant's summary and conclusion

Validity criteria fulfilled:
yes
Conclusions:
EC50 72h for algae was recorder as 847 mg/L.
1-bromo-3-chloropropane has not to be considered as Harmful to aquatic life according to the CLP regulation.