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)
Rationale for reliability incl. deficiencies:
other: Guideline study with unknown guideline from reliable source but detailed information only available in japanese.

Data source

Reference
Reference Type:
publication
Title:
Information on Environmental Toxicity
Author:
NITE Japan
Year:
2003
Bibliographic source:
NITE (National Institute of Technology and Evaluation) Japan, available at: http://www.safe.nite.go.jp/english/db.html

Materials and methods

Principles of method if other than guideline:
no guideline cited
GLP compliance:
not specified

Test material

Reference
Name:
Unnamed
Type:
Constituent
Details on test material:
- Name of test material (as cited in study report): Aminoazobenzene

Test organisms

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

Study design

Test type:
static
Water media type:
freshwater
Total exposure duration:
72 h

Results and discussion

Effect concentrationsopen allclose all
Duration:
72 h
Dose descriptor:
EC50
Effect conc.:
2.9 mg/L
Basis for effect:
growth rate
Duration:
72 h
Dose descriptor:
NOEC
Effect conc.:
0.14 mg/L
Basis for effect:
growth rate
Duration:
72 h
Dose descriptor:
EC50
Effect conc.:
1.2 mg/L
Basis for effect:
other: area under growth curve
Duration:
72 h
Dose descriptor:
NOEC
Effect conc.:
0.14 mg/L
Basis for effect:
other: area under growth curve

Applicant's summary and conclusion