Registration Dossier

Diss Factsheets

Ecotoxicological information

Toxicity to microorganisms

Currently viewing:

Administrative data

Endpoint:
activated sludge respiration inhibition testing
Type of information:
experimental study
Adequacy of study:
other information
Study period:
August 23-25, 1999
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: GLP - Guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1999
Report date:
1999

Materials and methods

Test guideline
Qualifier:
equivalent or similar to guideline
Guideline:
OECD Guideline 209 (Activated Sludge, Respiration Inhibition Test
GLP compliance:
yes

Test material

Constituent 1
Chemical structure
Reference substance name:
3,4-dichlorobut-1-ene
EC Number:
212-079-0
EC Name:
3,4-dichlorobut-1-ene
Cas Number:
760-23-6
Molecular formula:
C4H6Cl2
IUPAC Name:
3,4-dichlorobut-1-ene
Details on test material:
- Name of test material (as cited in study report): 3,4-Dichlorbuten-1
- purity: > 99.8%

Sampling and analysis

Analytical monitoring:
no

Test organisms

Test organisms (species):
Pseudomonas putida

Study design

Water media type:
freshwater
Total exposure duration:
3 h

Test conditions

Details on test conditions:
Type: aquatic

Results and discussion

Effect concentrations
Duration:
3 h
Dose descriptor:
EC50
Effect conc.:
2 950 mg/L
Nominal / measured:
not specified
Conc. based on:
test mat.
Basis for effect:
inhibition of total respiration
Remarks:
respiration rate

Applicant's summary and conclusion