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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Ecotoxicological information

Toxicity to terrestrial plants

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Administrative data

Link to relevant study record(s)

Reference
Endpoint:
toxicity to terrestrial plants: short-term
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
test procedure in accordance with national standard methods
Qualifier:
equivalent or similar to guideline
Guideline:
EPA OPPTS 850.4100 (Terrestrial Plant Toxicity Tier I (seedling emergence))
GLP compliance:
not specified
Analytical monitoring:
yes
Vehicle:
yes
Species:
other: Medicago sativa L.
Plant group:
Dicotyledonae (dicots)
Details on test organisms:
other name: Alfalfa
Test type:
seedling emergence toxicity test
Study type:
laboratory study
Substrate type:
natural soil
Total exposure duration:
16 d
Remarks:
Weathered/aged treatment
Species:
other: Medicago sativa L.
Duration:
5 d
Dose descriptor:
LOEC
Effect conc.:
ca. 215 mg/kg soil dw
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
seedling emergence
Remarks on result:
other: p≤0.05
Species:
other: Medicago sativa L.
Duration:
5 d
Dose descriptor:
EC50
Effect conc.:
> 50 - < 188 mg/kg soil dw
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
seedling emergence
Remarks on result:
other: 95% CL
Species:
other: Medicago sativa L.
Duration:
16 d
Dose descriptor:
LOEC
Effect conc.:
ca. 10 mg/kg soil dw
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
other: Shoot fresh mass
Remarks on result:
other: p≤0.05
Species:
other: Medicago sativa L.
Duration:
16 d
Dose descriptor:
EC50
Effect conc.:
> 4 - < 12 mg/kg soil dw
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
other: Shoot fresh mass
Remarks on result:
other: 95% CL
Species:
other: Medicago sativa L.
Duration:
16 d
Dose descriptor:
LOEC
Effect conc.:
ca. 0.1 mg/kg soil dw
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
other: Shoot dry mass
Remarks on result:
other: p≤0.05
Species:
other: Medicago sativa L.
Duration:
16 d
Dose descriptor:
EC50
Effect conc.:
> 2 - < 7 mg/kg soil dw
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
other: Shoot dry mass
Remarks on result:
other: 95% CL

Description of key information

5 days, Medicago sativa L., lowest EC50 based on available data

Key value for chemical safety assessment

Short-term EC50 or LC50 for terrestrial plants:
50 mg/kg soil dw

Additional information