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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Endpoint:
toxicity to terrestrial plants: long-term
Type of information:
migrated information: read-across from supporting substance (structural analogue or surrogate)
Adequacy of study:
key study
Study period:
2002-11-25
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: GLP-Guideline study. According to the ECHA guidance document "Practical guide 6: How to report read-across and categories (March 2010)", the reliability was changed from RL1 to RL2.

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2003
Report date:
2003

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 208 (Terrestrial Plants Test: Seedling Emergence and Seedling Growth Test)
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Remarks:
Sächsisches Staatsministerium für Umwelt und Landwirtschaft, Sachsen, Germany

Test material

Constituent 1
Reference substance name:
Automatically generated during migration to IUCLID 6, no data available
IUPAC Name:
Automatically generated during migration to IUCLID 6, no data available
Details on test material:
- Name of test material (as cited in study report): Zeolite A, Ca++-form: Vegobond 5A Powder
- Chemical name: Zeolite, cuboidal, crystalline, synthetic, non-fibrous
- Framework: cuboidal
- Related CAS number (according to inventory issues): 1327-36-2
- Related CAS number: 1318-02-1
- Physical state: white powder
- Analytical purity: 80.65%
- Lot/batch No.: 1103
- Storage condition of test material: room temperature, dark and dry
- Surface modified with Ca

Sampling and analysis

Analytical monitoring:
no

Test substrate

Vehicle:
no
Details on preparation and application of test substrate:
agricultural soil from site Gerichshain, stored >1 year before use in the test, no pesticides and fertilisers applied for at least 5 years
Soil characteristics: sandy loam, pH 6.0, 0.8% organic carbon content, 1.4% humus content, 36.7% water holding capacity, particle size: 9.7% clay, 49.7% silt, 40.6% sand, 35.7% washed out particles.

Test organisms

Species:
Raphanus sativus
Plant group:
Dicotyledonae (dicots)
Details on test organisms:
Seeds (Raphanus sativus Rodos, seed germination rate 92%) were purchased from Dehner Gartencenter, D-04425 Taucha.

Study design

Test type:
other: OECD Guideline 208 (Terrestrial Plants Test: Seedling Emergence and Seedling Growth Test
Study type:
laboratory study
Substrate type:
natural soil
Limit test:
no
Total exposure duration:
21 d

Test conditions

Test temperature:
18-30 °C
pH:
6.0
Moisture:
relative humidity: 15-37%
Nominal and measured concentrations:
Following concentrations were tested: 0, 15, 30, 60, 120 and 240 g/kg d.w.

Results and discussion

Effect concentrationsopen allclose all
Species:
Raphanus sativus
Duration:
21 d
Dose descriptor:
LC50
Effect conc.:
> 240 000 mg/kg soil dw
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
seedling emergence
Species:
Raphanus sativus
Duration:
21 d
Dose descriptor:
NOEC
Effect conc.:
240 000 mg/kg soil dw
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
other: shoot fresh weight
Species:
Raphanus sativus
Duration:
21 d
Dose descriptor:
NOEC
Effect conc.:
60 000 mg/kg soil dw
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
other: plant height

Any other information on results incl. tables

Emergence in the control group was 100%, no phytotoxic effects visible.
LC50/EC50 was >240 g/kg d.w. for all parameters.
NOEC for shoot fresh weight was 240 g/kg d.w. A statistically significant increase in shoot fresh weight was observed at 60, 120 and 240 g/kg, the resulting NOEC for shoot fresh weight increase was 30 g/kg d.w.
NOEC for plant height was 60 g/kg.
No visual signs of phototoxicity (chlorosis, necrosis) were observed at any dose level.
The results are based on nominal concentrations of the test substance.

Applicant's summary and conclusion