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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

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: Scientifically acceptable publication

Data source

Reference
Reference Type:
publication
Title:
Comparison of the Toxicity Thresholds of Water Pollutants to Bacteria, Algae, and Protozoa in the Cell Multiplication Inhibition Test
Author:
Bringmann G. and Kühn R.
Year:
1980
Bibliographic source:
Water Research; 14(3), S. 231-241

Materials and methods

Test guideline
Qualifier:
no guideline followed
Principles of method if other than guideline:
The study was carried out prior to the development of corresponding test guidelines. Therefore, no specific guideline was followed.
GLP compliance:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
Benzaldehyde
EC Number:
202-860-4
EC Name:
Benzaldehyde
Cas Number:
100-52-7
Molecular formula:
C7H6O
IUPAC Name:
benzaldehyde

Test organisms

Test organisms (species):
Scenedesmus quadricauda

Study design

Test type:
static
Water media type:
freshwater
Total exposure duration:
7 d

Results and discussion

Effect concentrations
Duration:
7 d
Dose descriptor:
other: Toxic threshold concentration
Effect conc.:
34 mg/L
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
biomass

Applicant's summary and conclusion