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Ecotoxicological information

Toxicity to terrestrial plants

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Administrative data

Endpoint:
toxicity to terrestrial plants
Type of information:
experimental study
Adequacy of study:
disregarded due to major methodological deficiencies
Reliability:
4 (not assignable)
Rationale for reliability incl. deficiencies:
other: Information from review article, reliability not known

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2002
Report Date:
2002

Materials and methods

Principles of method if other than guideline:
Advanced techniques for dealing with volatile compounds
GLP compliance:
not specified

Test material

Reference
Name:
Unnamed
Type:
Constituent

Test organisms

open allclose all
Species:
other: Agropyron dasystachyum (Northern wheatgrass)
Plant group:
Monocotyledonae (monocots)
Species:
other: Medicago sativa (Alfalfa)
Plant group:
Dicotyledonae (dicots)

Results and discussion

Effect concentrationsopen allclose all
Species:
other: Agropyron dasystachyum
Dose descriptor:
other: IC25
Effect conc.:
73 mg/kg soil dw
Nominal / measured:
meas. (not specified)
Conc. based on:
test mat.
Basis for effect:
other: reduction of dry root mass
Remarks on result:
other: coarse soil
Species:
other: Agropyron dasystachyum
Dose descriptor:
other: IC25
Effect conc.:
199 mg/kg soil dw
Nominal / measured:
meas. (not specified)
Conc. based on:
test mat.
Basis for effect:
other: reduction of wet root mass
Remarks on result:
other: fine soil
Species:
other: Medicago sativa
Effect conc.:
235 mg/kg soil dw
Nominal / measured:
meas. (not specified)
Conc. based on:
test mat.
Basis for effect:
other: reduction of dry root mass
Remarks on result:
other: coarse soil
Species:
other: Medicago sativa
Effect conc.:
265 mg/kg soil dw
Nominal / measured:
meas. (not specified)
Conc. based on:
test mat.
Basis for effect:
other: reduction of root length
Remarks on result:
other: fine soil
Details on results:
Most sensitive endpoints reported

Applicant's summary and conclusion

Validity criteria fulfilled:
not specified
Conclusions:
The most sensitive endpoint was a IC25 (reduction of dry root mass) 73mg/kg in coarse soil
Executive summary:

The data reported here was taken from Environment Canadas fact sheet on soil quality guidelines for benzene (2004). We have been unable to obtain the original study report, so have not been able to assess the reliability of this study.