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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
guideline study with acceptable restrictions
Qualifier:
according to guideline
Guideline:
OECD Guideline 208 (Terrestrial Plants Test: Seedling Emergence and Seedling Growth Test)
GLP compliance:
yes
Vehicle:
not specified
Species:
Lactuca sativa
Plant group:
Dicotyledonae (dicots)
Species:
Raphanus sativus
Plant group:
Dicotyledonae (dicots)
Species:
Triticum aestivum
Plant group:
Monocotyledonae (monocots)
Species:
Glycine max (G. soja)
Plant group:
Dicotyledonae (dicots)
Test type:
seedling emergence toxicity / vegetative vigour test
Study type:
laboratory study
Substrate type:
artificial soil
Limit test:
no
Total exposure duration:
30 d
pH:
6.5
Details on test conditions:
TEST SYSTEM
- Testing facility: glass house

SOURCE AND PROPERTIES OF SUBSTRATE (if soil)
- Organic carbon (%): 1.2 %

EFFECT PARAMETERS MEASURED: Germination, emergence, vigour

TEST CONCENTRATIONS
- Spacing factor for test concentrations: 10
Nominal and measured concentrations:
Nominal: 0, 0.1, 10 and 100 mg/kg oven dried soil equivalent
Reference substance (positive control):
not specified
Key result
Species:
other: all tested species
Duration:
30 d
Dose descriptor:
EC50
Effect conc.:
> 100 mg/kg soil dw
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
growth
Remarks on result:
not determinable
Key result
Species:
other: all tested species
Duration:
30 d
Dose descriptor:
NOEC
Effect conc.:
> 100 mg/kg soil dw
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
growth
Remarks on result:
not determinable
Key result
Species:
other: all tested species
Duration:
30 d
Dose descriptor:
LC50
Effect conc.:
> 100 mg/kg soil dw
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
seedling emergence
Remarks on result:
not determinable
Key result
Species:
other: all tested species
Duration:
30 d
Dose descriptor:
NOEC
Effect conc.:
> 100 mg/kg soil dw
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
seedling emergence
Remarks on result:
not determinable
Details on results:
No phototoxic effects were observed at any concentration. No significant changes were observed in fresh weights, dry weights or emergence at any concentration. At termination, very slight differences were observed in vigour for lettuce and soyabean only, but these were not significant at p = 0.05.
Validity criteria fulfilled:
not specified
Conclusions:
In this study on toxicity to plants, the EC50 and NOEC values were determined to be above the highest tested concentration (100 mg/kg).
Executive summary:

The effect of the test substance on the seed germination, seedling emergence and vegetative vigour of monocot (Triticum aestivum, common wheat) and dicot (Lactuca sativa, lettuce; Raphanus sativus, cultivated radish; Glycine max, soybean) crops was studied at nominal concentrations of 0, 0.1, 10 and 100 mg/kg oven dried soil equivalent ( LEVINGTON AGRICULTURE LTD., ECHA RSS, 2017). The test was performed in accordance with OECD guideline 208. The growth medium used in the seedling emergence and vegetative vigour test was natural soil (pH 6.5, organic carbon 1.2 %).

Seed germination was not affected by the treatment of the test material. No phototoxic effects were observed at any concentration. No significant changes were observed in fresh weights, dry weights or emergence at any concentration. At termination, very slight differences were observed in vigour for lettuce and soyabean only, but these were not significant at p = 0.05. Thus, EC50 and NOEC values were determined to be above the highest tested concentration (100 mg/kg).

Description of key information

In this study on toxicity to plants, the EC50 and NOEC values were determined to be above the highest tested concentration (100 mg/kg).

Key value for chemical safety assessment

Additional information

In accordance with Article 25(3) of the REACH Regulation the robust study summaries submitted 12 years previously, are additionally used for the purpose of the registration.

The effect of the test substance on the seed germination, seedling emergence and vegetative vigour of monocot (Triticum aestivum, common wheat) and dicot (Lactuca sativa, lettuce; Raphanus sativus, cultivated radish; Glycine max, soybean) crops was studied at nominal concentrations of 0, 0.1, 10 and 100 mg/kg oven dried soil equivalent ( LEVINGTON AGRICULTURE LTD., ECHA RSS, 2017). The test was performed in accordance with OECD guideline 208. The growth medium used in the seedling emergence and vegetative vigour test was natural soil (pH 6.5, organic carbon 1.2 %).

Seed germination was not affected by the treatment of the test material. No phototoxic effects were observed at any concentration. No significant changes were observed in fresh weights, dry weights or emergence at any concentration. At termination, very slight differences were observed in vigour for lettuce and soyabean only, but these were not significant at p = 0.05. Thus, EC50 and NOEC values were determined to be above the highest tested concentration (100 mg/kg).