Registration Dossier
Registration Dossier
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EC number: 201-204-4 | CAS number: 79-41-4
Toxicity to soil microorganisms
Administrative data
- Endpoint:
- toxicity to soil microorganisms
- Type of information:
- experimental study
- Adequacy of study:
- supporting study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: OECD guideline study; GLP
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 992
Materials and methods
- Principles of method if other than guideline:
- other: OECD
- GLP compliance:
- yes
Test material
- Reference substance name:
- Methacrylic acid
- EC Number:
- 201-204-4
- EC Name:
- Methacrylic acid
- Cas Number:
- 79-41-4
- Molecular formula:
- C4H6O2
- IUPAC Name:
- methacrylic acid
- Test material form:
- liquid
Constituent 1
Sampling and analysis
- Analytical monitoring:
- not specified
Test organisms
- Test organisms (inoculum):
- other: aerobic microorganisms
Study design
- Total exposure duration:
- 28 d
Test conditions
- Details on test conditions:
- Toxicity was measured as a reduction in soil microorganism respiration of CO2. MAA was dissolved in water and the soils (sandy loam soil) amended with MAA yielding concentration of 0.1 - 1000 mg/l. Nutrients were added. CO2 was collected and quantified at various time intervals up to 28 days.
- Nominal and measured concentrations:
- 0.1 - 1000 mg/l
Results and discussion
Effect concentrations
- Duration:
- 28 d
- Dose descriptor:
- EC10
- Effect conc.:
- 1 000 other: mg/l
- Details on results:
- ethanol was present.
Applicant's summary and conclusion
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