Registration Dossier
Registration Dossier
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EC number: 201-184-7 | CAS number: 79-19-6
Toxicity to microorganisms
Administrative data
Link to relevant study record(s)
- 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
- Principles of method if other than guideline:
- Data from handbook
- GLP compliance:
- not specified
- Remarks:
- Handbook data
- 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.
Reference
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 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.
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