Registration Dossier

Administrative data

Endpoint:
toxicity to microorganisms, other
Type of information:
experimental study
Adequacy of study:
supporting study
Reliability:
4 (not assignable)
Rationale for reliability incl. deficiencies:
abstract

Data source

Reference
Reference Type:
other: abstract
Title:
Unnamed
Year:
1993
Report Date:
1993

Materials and methods

Test guideline
Qualifier:
according to
Guideline:
DIN 38412-8 (Pseudomonas Zellvermehrungshemmtest)
GLP compliance:
not specified

Test material

Reference
Name:
Unnamed
Type:
Constituent
Test material form:
solid: particulate/powder
Specific details on test material used for the study:
no batch number in this part of the reported data

Sampling and analysis

Analytical monitoring:
no

Test solutions

Vehicle:
no
Details on test solutions:
used as such

Test organisms

Test organisms (species):
Pseudomonas putida
Details on inoculum:
Pseudonomas putida (MIGULA, Stamm Berlin)

Study design

Test type:
static
Water media type:
freshwater
Limit test:
no
Total exposure duration:
16 h

Test conditions

Test temperature:
21 ± 1 °C
Reference substance (positive control):
not specified

Results and discussion

Effect concentrationsopen allclose all
Duration:
16 h
Dose descriptor:
EC10
Effect conc.:
230 mg/L
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
growth inhibition
Duration:
16 h
Dose descriptor:
EC50
Effect conc.:
480 mg/L
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
growth inhibition

Any other information on results incl. tables

Concentration (mg/L)

Percentage inhibition (compared to initial cell count)

74

7

148

10

297

19

594

63

 

Applicant's summary and conclusion

Validity criteria fulfilled:
not specified
Conclusions:
The EC50 as derived in this study is 480 mg/L