Registration Dossier

Administrative data

Endpoint:
toxicity to terrestrial plants: long-term
Type of information:
experimental study
Adequacy of study:
key study
Study period:
Jan - Aug 2001
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Study performed according to international guidelines and good laboratory practices by an experienced contract laboratory.

Data source

Referenceopen allclose all

Reference Type:
study report
Title:
Unnamed
Year:
2001
Reference Type:
publication
Title:
Unnamed
Year:
2002

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to
Guideline:
OECD Guideline 208 (Terrestrial Plants Test: Seedling Emergence and Seedling Growth Test)
Version / remarks:
proposal for revision
Deviations:
no
Qualifier:
according to
Guideline:
EPA OPPTS 850.4100 (Terrestrial Plant Toxicity Tier I (seedling emergence))
Deviations:
no
Qualifier:
according to
Guideline:
EPA OPPTS 850.4225 (Seedling Emergence Tier II)
Deviations:
no
GLP compliance:
yes

Test material

Reference
Name:
Unnamed
Type:
Constituent
Details on test material:
Composite of equal porportions of the commercial DecaBDE products of Albemarle Corporation, Great Lakes Chemical Corp, and ICL.

Sampling and analysis

Analytical monitoring:
yes
Details on sampling:
Fortified soil, matrix blanks and fortified quality control samples analyzed for test material.

Test substrate

Vehicle:
no

Test organisms

open allclose all
Species:
Allium cepa
Plant group:
Monocotyledonae (monocots)
Species:
Cucumis sativus
Plant group:
Dicotyledonae (dicots)
Species:
Glycine max (G. soja)
Plant group:
Dicotyledonae (dicots)
Species:
Lolium perenne
Plant group:
Monocotyledonae (monocots)
Species:
Lycopersicon esculentum
Plant group:
Dicotyledonae (dicots)
Species:
Zea mays
Plant group:
Monocotyledonae (monocots)

Study design

Test type:
other: seedling emergence and growth
Study type:
laboratory study
Substrate type:
artificial soil
Limit test:
no
Total exposure duration:
21 d

Test conditions

Test temperature:
Ranged from 18 to 33 degrees C.
Moisture:
Relative humidity ranged from 10-79%.
Nominal and measured concentrations:
Nominal: 0, 391, 781, 1563, 3125, 6250 mg/kg dry soil.
Reference substance (positive control):
no

Results and discussion

Effect concentrationsopen allclose all
Species:
Allium cepa
Duration:
21 d
Dose descriptor:
NOEC
Effect conc.:
>= 6 250 mg/kg soil dw
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
other: emergence and growth
Species:
Cucumis sativus
Duration:
21 d
Dose descriptor:
NOEC
Effect conc.:
>= 6 250 mg/kg soil dw
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
other: emergence and growth
Species:
Glycine max (G. soja)
Duration:
21 d
Dose descriptor:
NOEC
Effect conc.:
>= 6 250 mg/kg soil dw
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
other: emergence and growth
Species:
Lolium perenne
Duration:
21 d
Dose descriptor:
NOEC
Effect conc.:
>= 6 250 mg/kg soil dw
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
other: emergence and growth
Species:
Lycopersicon esculentum
Duration:
21 d
Dose descriptor:
NOEC
Effect conc.:
>= 6 250 mg/kg soil dw
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
other: emergence and growth
Species:
Zea mays
Duration:
21 d
Dose descriptor:
NOEC
Effect conc.:
>= 6 250 mg/kg soil dw
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
other: emergence and growth

Applicant's summary and conclusion

Validity criteria fulfilled:
yes
Conclusions:
DecaBDE was not toxic to six species of terrestrial plants; the NOEC was 6250 mg/kg dry soil, the highest dose tested.
Executive summary:

No effects on emergence, survival or growth was observed on any of the six plant species tested. The highest soil concentration tested, 6250 mg/kg dry soil, was the NOEC. The plants tested were corn, cucumber, onion, ryegrass, soybean, and tomato.