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Ecotoxicological information

Toxicity to aquatic plants other than algae

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Administrative data

Endpoint:
toxicity to aquatic plants other than algae
Type of information:
experimental study
Adequacy of study:
other information
Reliability:
3 (not reliable)
Rationale for reliability incl. deficiencies:
other: Unsuitable test system

Data source

Reference
Reference Type:
publication
Title:
The physiological activity of substitutedphenols. I. Relationships between chemical structure and physiological activity
Author:
Blackman GE, Parke MH, Garton G
Year:
1955
Bibliographic source:
Arch. Biochem. Biophysics, 54, 45-54

Materials and methods

Principles of method if other than guideline:
biological assay of activity (physiological effects)
GLP compliance:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
o-cresol
EC Number:
202-423-8
EC Name:
o-cresol
Cas Number:
95-48-7
Molecular formula:
C7H8O
IUPAC Name:
o-cresol
Details on test material:
purity not specified

Sampling and analysis

Analytical monitoring:
no

Test solutions

Vehicle:
not specified

Test organisms

Test organisms (species):
Lemna minor

Study design

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

Test conditions

Test temperature:
25+/-1°C
pH:
5.1

Results and discussion

Effect concentrations
Duration:
72 h
Dose descriptor:
other: physiological effects
Effect conc.:
746 mg/L
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
other: phytotoxicity

Any other information on results incl. tables

RM-Freetext: Exposure period: 72 h Comments: 50% chlorosis

Applicant's summary and conclusion

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