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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:
other information
Reliability:
4 (not assignable)
Rationale for reliability incl. deficiencies:
other: ducumentation insufficient for assessment

Data source

Reference
Reference Type:
publication
Title:
The Effect of Both Powdered and Liquid Rubber Additives on the Growth of Soil Microorganisms
Author:
Williams GR
Year:
1984
Bibliographic source:
International Biodetoriation Vol. 20 No. 3

Materials and methods

Principles of method if other than guideline:
The substance was incorporated into nutrient agar, at varying concentrations, approximating the levels of incorporation in rubber formulations, and inoculated with soil extract (3.0 E+07 organisms per ml).

Test material

Reference
Name:
Unnamed
Type:
Constituent
Details on test material:
polymerised 2,2,4-trimethyl-dihydroquinolins

Test organisms

Test organisms (inoculum):
soil

Study design

Total exposure duration:
14 d

Test conditions

Test temperature:
25°C

Results and discussion

Effect concentrations
Duration:
14 d
Dose descriptor:
other: LD50
Effect conc.:
> 1.5 other: %
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
other: growth inhibition

Any other information on results incl. tables

The substance was classified as non-toxic.

Applicant's summary and conclusion