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Ecotoxicological information

Toxicity to soil microorganisms

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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:
1992

Materials and methods

Principles of method if other than guideline:
other: OECD
GLP compliance:
yes

Test material

Reference
Name:
Unnamed
Type:
Constituent
Details on test material:
Rohm and Haas, minimum 99.8 %

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