Registration Dossier

Ecotoxicological information

Toxicity to microorganisms

Currently viewing:

Administrative data

Link to relevant study record(s)

Reference
Endpoint:
toxicity to microorganisms, other
Type of information:
experimental study
Adequacy of study:
supporting study
Reliability:
4 (not assignable)
Rationale for reliability incl. deficiencies:
documentation insufficient for assessment
Reference:
Composition 0
Principles of method if other than guideline:
Data from handbook
GLP compliance:
not specified
Remarks:
Handbook data
Test material information:
Composition 1
Test organisms (species):
Nitrosomonas sp.
Dose descriptor:
IC0
Effect conc.:
ca. 0.09 mg/L
Nominal / measured:
not specified
Conc. based on:
not specified
Basis for effect:
inhibition of nitrification rate
Remarks on result:
other: Duration not specified
Dose descriptor:
other: IC31
Effect conc.:
ca. 0.45 mg/L
Nominal / measured:
not specified
Conc. based on:
not specified
Basis for effect:
inhibition of nitrification rate
Remarks on result:
other: Duration not specified
Key result
Dose descriptor:
IC50
Effect conc.:
ca. 0.9 mg/L
Nominal / measured:
not specified
Conc. based on:
not specified
Basis for effect:
inhibition of nitrification rate
Remarks on result:
other: Duration not specified.
Dose descriptor:
other: IC66
Effect conc.:
ca. 0.91 mg/L
Nominal / measured:
not specified
Conc. based on:
not specified
Basis for effect:
inhibition of nitrification rate
Remarks on result:
other: Duration not specified
Validity criteria fulfilled:
not specified
Conclusions:
The test item has the following value of IC: IC50 of 0.9 mg/L, IC0 of 0.09 mg/L, IC31of 0.45mg/L and IC66 of 0.61 mg/L for bacteria Nitrosomonas.
Executive summary:

According the handbook of Enviromental data on Organic chemicals, the test item has the following value of IC: IC50 of 0.9 mg/L, IC0 of 0.09 mg/L, IC31of 0.45mg/L and IC66 of 0.61 mg/L for bacteria Nitrosomonas.

Description of key information

Supporting study: According the handbook of Enviromental data on Organic chemicals, The following value of IC for Nitrosomonas are given. The IC50 of 0.9 mg/L, IC0 of 0.09 mg/L, IC31 of 0.45mg/L and IC66 of 0.61 mg/L.

Key value for chemical safety assessment

EC50 or LC50 for microorganisms:
0.9 mg/L

Additional information

Supporting study: According the handbook of Enviromental data on Organic chemicals, the test item has the following value of IC: IC50 of 0.9 mg/L, IC0 of 0.09 mg/L, IC31 of 0.45mg/L and IC66 of 0.61 mg/L for Nitrosomonas.