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Ecotoxicological information

Toxicity to terrestrial plants

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Administrative data

Endpoint:
toxicity to terrestrial plants: long-term
Type of information:
migrated information: read-across from supporting substance (structural analogue or surrogate)
Adequacy of study:
other information
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: see 'Remark'
Remarks:
Method not in accordance with guideline standards but data are comprehensible and scientifically acceptable. Standard test organism was used. Glass house experiment. Since four harvests were considered, results of this study are appropiate for assessing the chronic toxicity of copper to plants.

Data source

Referenceopen allclose all

Reference Type:
publication
Title:
Copper uptake and accumulation by perennial ryegrass grown in soil and solution culture
Author:
Jarvis SC
Year:
1978
Bibliographic source:
J Sci Fd Agri 29: 12-18
Reference Type:
secondary source
Title:
Environmental Health Criteria (EHC) 200, Copper
Author:
WHO
Year:
1998

Materials and methods

Principles of method if other than guideline:
Glass house experiment, plants were either grown in liquid medium and soil, 4 harvests, dry weight was measured
GLP compliance:
no

Test material

Reference
Name:
Unnamed
Type:
Constituent
Type:
Constituent
Details on test material:
- Name of test material (as cited in study report): CuSO4*5H2O
- Analytical purity: no data

Sampling and analysis

Analytical monitoring:
no

Test substrate

Vehicle:
no

Test organisms

Species:
Lolium perenne
Plant group:
Monocotyledonae (monocots)
Details on test organisms:
- Common name: perennial ryegrass
- Plant family: Poaceae
- Variety: S23

Study design

Study type:
laboratory study
Substrate type:
natural soil
Limit test:
no
Remarks:
four harvests

Results and discussion

Effect concentrations
Species:
Lolium perenne
Dose descriptor:
NOEC
Effect conc.:
> 95.3 - < 953 mg/kg soil dw
Nominal / measured:
nominal
Conc. based on:
element
Remarks:
Cu
Basis for effect:
other: dry weight of shoots and roots

Any other information on results incl. tables

The author grew perennial ryegrass  (Lolium perenne) in a loam soil amended with copper at concentrations of 9.5, 95.3 and 953 mg/kg (dry weight).
Significant reductions in dry weight of shoots and roots over 4 harvests were observed only at the highest concentration. 

Applicant's summary and conclusion