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
Reliability:
2 (reliable with restrictions)

Data source

Reference
Reference Type:
secondary source
Title:
the growth inhibition of planktonic algae due to surfactant used in washing agents
Author:
Yamane, A.N.; Okada, M and Sudo, R
Year:
1984
Bibliographic source:
wat. res 18, 1101-1105

Materials and methods

Test guideline
Qualifier:
equivalent or similar to
Guideline:
EU Method C.3 (Algal Inhibition test)
Version / remarks:
REACH guidance on QSAR
GLP compliance:
not specified

Test material

Reference
Name:
Unnamed
Type:
Constituent
Details on test material:
NPE8, NPE9

Test organisms

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

Study design

Test type:
static

Test conditions

Test temperature:
24±2

Results and discussion

Effect concentrationsopen allclose all
Duration:
48 h
Dose descriptor:
EC50
Effect conc.:
20 mg/L
Nominal / measured:
meas. (initial)
Conc. based on:
test mat.
Basis for effect:
other: growth inhibition
Remarks on result:
other: NPE8
Duration:
48 h
Dose descriptor:
EC50
Effect conc.:
50 mg/L
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
growth rate
Remarks on result:
other: NPE9

Applicant's summary and conclusion