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Ecotoxicological information

Toxicity to aquatic algae and cyanobacteria

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Administrative data

Endpoint:
toxicity to aquatic algae and cyanobacteria
Type of information:
other: Publication
Adequacy of study:
weight of evidence
Study period:
72 hours
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
data from handbook or collection of data
Cross-reference
Reason / purpose for cross-reference:
read-across: supporting information

Data source

Reference
Reference Type:
review article or handbook
Title:
Unnamed
Year:
2001
Report date:
2000

Materials and methods

Test guideline
Qualifier:
equivalent or similar to guideline
Guideline:
other: assumed similar to usual 72 hour exposure test but no details given in the publication
Deviations:
not specified
GLP compliance:
no

Test material

Constituent 1
Reference substance name:
Betaines, C12-Alkyldimethyl; Betaines with C14-Alkyldimethyl
Cas Number:
None
Molecular formula:
C16H33NO2C18H37NO2
IUPAC Name:
Betaines, C12-Alkyldimethyl; Betaines with C14-Alkyldimethyl
Test material form:
not specified

Test organisms

Test organisms (species):
Scenedesmus sp.

Study design

Total exposure duration:
72 h

Results and discussion

Effect concentrations
Duration:
72 h
Dose descriptor:
EC50
Effect conc.:
2.5 mg/L
Nominal / measured:
meas. (geom. mean)

Applicant's summary and conclusion