Registration Dossier

Ecotoxicological information

Toxicity to aquatic plants other than algae

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: This study is poorly described. No information was available about the test substance and the test condition.
Cross-reference
Reason / purpose:
reference to other study

Data source

Reference
Reference Type:
publication
Title:
Some effects of polyphenols on aquatic plants. I : Toxicity of phenols in aquatic plants
Author:
Stom D.I., Richard R
Year:
1981
Bibliographic source:
Bull. Environm. Contam. Toxicol., 27 : 332-337

Materials and methods

Test guideline
Qualifier:
no guideline followed
Principles of method if other than guideline:
Inhibition of plant multiplication.
GLP compliance:
not specified

Test material

Reference
Name:
Unnamed
Type:
Constituent
Details on test material:
No data

Sampling and analysis

Analytical monitoring:
yes
Details on sampling:
No data

Test solutions

Vehicle:
not specified

Test organisms

Test organisms (species):
Lemna minor
Details on test organisms:
TEST ORGANISM
- Common name: Lemna minor
- Strain:
- Source (laboratory, culture collection): no data
- Age of inoculum (at test initiation): no data
- Method of cultivation: tests organisms were cultivated as published by Werner (1967); L. minor was cultivated in at 24°C in petri dishes (20 cm diameter), at 800 lux and a light/dark regime of 9:15H.

ACCLIMATION: no data

Study design

Test type:
other: The media were exchange after 24h; no more indication
Water media type:
freshwater
Total exposure duration:
12 d
Post exposure observation period:
No data

Test conditions

Hardness:
No data
Test temperature:
No data
pH:
No data
Dissolved oxygen:
No data
Salinity:
No data
Nominal and measured concentrations:
No data
Details on test conditions:
No data
Reference substance (positive control):
not specified

Results and discussion

Effect concentrations
Duration:
12 d
Dose descriptor:
EC50
Effect conc.:
103.6 mg/L
Nominal / measured:
not specified
Conc. based on:
test mat.
Basis for effect:
not specified
Details on results:
No details

Applicant's summary and conclusion