Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Currently viewing:

Administrative data

Link to relevant study record(s)

Reference
Endpoint:
activated sludge nitrification inhibition testing
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Data is from peer reviewed journal
Justification for type of information:
Data is from peer reviewed journal
Qualifier:
according to guideline
Guideline:
other: as mentioned below
Principles of method if other than guideline:
luminiscence reduction test was performed for test material on Photobacterium phosphoreum
GLP compliance:
not specified
Test organisms (species):
other: P. phosphoreum
Test type:
static
Water media type:
freshwater
Total exposure duration:
30 min
Test temperature:
15 deg C
Duration:
30 min
Dose descriptor:
EC50
Effect conc.:
0.22 mg/L
Nominal / measured:
not specified
Conc. based on:
test mat.
Basis for effect:
other: luminiscent
Conclusions:
The effect concentration EC50 of test material on P. phosphoreum was evaluated to be 0.22 mg/l
Executive summary:

Microtox bioassay was performed for the test material on P. phosphoreumbased on the light emission of these bacteria, as a measurement of their metabolic activity. 50% reduction of the light emitted by the bacteria (EC50) is calculated from a concentration response curve by regression analysis. The osmotic pressure of the samples was adjusted by NaCl addition (2%). Toxicity data were based on a 30-min exposure of bacteria to the surfactant solution at 15 deg C. The effect concentration  EC50 of test material on  P. phosphoreum was evaluated to be 0.22 mg/l

Description of key information

Toxicity to microorganism:

Microtox bioassay was performed for the test material onP. phosphoreumbased on the light emission of these bacteria, as a measurement of their metabolic activity. 50% reductionof the light emitted by the bacteria (EC50) is calculated from a concentration response curve by regression analysis. The osmotic pressure of the samples was adjusted by NaCl addition (2%). Toxicity data were based on a 30-min exposure of bacteria to the surfactantsolution at 15 deg C.

Key value for chemical safety assessment

Additional information

Toxicity to microorganism:

Microtox bioassay was performed for the test material onP. phosphoreumbased on the light emission of these bacteria, as a measurement of their metabolic activity. 50% reductionof the light emitted by the bacteria (EC50) is calculated from a concentration response curve by regression analysis. The osmotic pressure of the samples was adjusted by NaCl addition (2%). Toxicity data were based on a 30-min exposure of bacteria to the surfactantsolution at 15 deg C.