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Ecotoxicological information

Toxicity to microorganisms

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Link to relevant study record(s)

Reference
Endpoint:
toxicity to microorganisms, other
Remarks:
Pseudomonas putida
Type of information:
experimental study
Adequacy of study:
key study
Study period:
1997
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
test procedure in accordance with national standard methods with acceptable restrictions
Qualifier:
according to
Guideline:
DIN 38412-27 (Pseudomonas putida Zellvermehrungshemmtest)
Deviations:
not specified
GLP compliance:
no
Specific details on test material used for the study:
not specified
Analytical monitoring:
no
Vehicle:
not specified
Test organisms (species):
Pseudomonas putida
Details on inoculum:
MIGULA Strain Berlin, obtained from DSM
Test type:
static
Water media type:
freshwater
Limit test:
no
Total exposure duration:
16 h
Hardness:
not specified
Test temperature:
not specified
pH:
not specified
Dissolved oxygen:
not specified
Salinity:
not specified
Conductivity:
not specified
Nominal and measured concentrations:
10, 20, 40, 80, 160 mg/L
Reference substance (positive control):
no
Key result
Duration:
16 h
Dose descriptor:
EC10
Effect conc.:
12 mg/L
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
growth inhibition
Key result
Duration:
16 h
Dose descriptor:
EC50
Effect conc.:
24 mg/L
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
growth inhibition
Validity criteria fulfilled:
not specified
Conclusions:
The EC10 and EC50 for growth inhibition of Pseudomonas putida is 12 and 24 mg/L, respectively.

Description of key information

The EC10 and EC50 for growth inhibition of Pseudomonas putida is 12 and 24 mg/L, respectively.

Key value for chemical safety assessment

EC50 for microorganisms:
24 mg/L
EC10 or NOEC for microorganisms:
12 mg/L

Additional information