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EC number: 700-146-1 | CAS number: 1141487-54-8
- Life Cycle description
- Uses advised against
- Endpoint summary
- Appearance / physical state / colour
- Melting point / freezing point
- Boiling point
- Density
- Particle size distribution (Granulometry)
- Vapour pressure
- Partition coefficient
- Water solubility
- Solubility in organic solvents / fat solubility
- Surface tension
- Flash point
- Auto flammability
- Flammability
- Explosiveness
- Oxidising properties
- Oxidation reduction potential
- Stability in organic solvents and identity of relevant degradation products
- Storage stability and reactivity towards container material
- Stability: thermal, sunlight, metals
- pH
- Dissociation constant
- Viscosity
- Additional physico-chemical information
- Additional physico-chemical properties of nanomaterials
- Nanomaterial agglomeration / aggregation
- Nanomaterial crystalline phase
- Nanomaterial crystallite and grain size
- Nanomaterial aspect ratio / shape
- Nanomaterial specific surface area
- Nanomaterial Zeta potential
- Nanomaterial surface chemistry
- Nanomaterial dustiness
- Nanomaterial porosity
- Nanomaterial pour density
- Nanomaterial photocatalytic activity
- Nanomaterial radical formation potential
- Nanomaterial catalytic activity
- Endpoint summary
- Stability
- Biodegradation
- Bioaccumulation
- Transport and distribution
- Environmental data
- Additional information on environmental fate and behaviour
- Ecotoxicological Summary
- Aquatic toxicity
- Endpoint summary
- Short-term toxicity to fish
- Long-term toxicity to fish
- Short-term toxicity to aquatic invertebrates
- Long-term toxicity to aquatic invertebrates
- Toxicity to aquatic algae and cyanobacteria
- Toxicity to aquatic plants other than algae
- Toxicity to microorganisms
- Endocrine disrupter testing in aquatic vertebrates – in vivo
- Toxicity to other aquatic organisms
- Sediment toxicity
- Terrestrial toxicity
- Biological effects monitoring
- Biotransformation and kinetics
- Additional ecotoxological information
- Toxicological Summary
- Toxicokinetics, metabolism and distribution
- Acute Toxicity
- Irritation / corrosion
- Sensitisation
- Repeated dose toxicity
- Genetic toxicity
- Carcinogenicity
- Toxicity to reproduction
- Specific investigations
- Exposure related observations in humans
- Toxic effects on livestock and pets
- Additional toxicological data
Toxicity to soil macroorganisms except arthropods
Administrative data
- Endpoint:
- toxicity to soil macroorganisms except arthropods: long-term
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2016-10-27 to 2016-12-22
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 017
- Report date:
- 2017
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 222 (Earthworm Reproduction Test (Eisenia fetida/Eisenia andrei))
- Version / remarks:
- 2004
- Deviations:
- yes
- Remarks:
- Food was provided on day 0 instead of day 1 due to good experience with this procedure; Due to technical reasons, temperature increased temporarily to a maximum of 23 °C; Soil moisture deviated by more than 10 % from initial value
- GLP compliance:
- yes (incl. QA statement)
- Remarks:
- signed 2017-01-03
Test material
- Reference substance name:
- (R,S)-5-cyclohexyl-2-methyl-pentan-1-ol
- EC Number:
- 700-146-1
- Cas Number:
- 1141487-54-8
- Molecular formula:
- C12H24O
- IUPAC Name:
- (R,S)-5-cyclohexyl-2-methyl-pentan-1-ol
Constituent 1
Sampling and analysis
- Analytical monitoring:
- no
Test substrate
- Vehicle:
- no
- Details on preparation and application of test substrate:
- - Method of mixing into soil: The respective test item amount was weighed out for each test item concentration and dissolved in demineralised water. The spiking solution was then added to the artificial soil and mixed thoroughly. Application was performed prior to the introduction of test organisms to the test vessels.
- Controls: Artificial soil moistened with demineralised water without test item, applied under the same conditions as the test item treatments.
Test organisms
- Test organisms (species):
- Eisenia fetida
- Animal group:
- annelids
- Details on test organisms:
- TEST ORGANISM
- Common name: Earthworm
- Source: Breeding stock culture maintained at the test facility.
- Method of breeding: Organisms are bred in covered plastic vessels containing potting compost.
- Age at test initiation (mean and range, SD): Adult earthworms (with clitellum) aged 2-12 months (difference in age did not deviate by more than one month).
- Weight at test initiation (mean and range, SD): 0.33-0.59 g
ACCLIMATION
- Acclimation period: 2 days
- Acclimation conditions (same as test or not): Medium same as test medium (artificial soil)
- Health during acclimation (any mortality observed): No mortality observed.
Study design
- Study type:
- laboratory study
- Substrate type:
- artificial soil
- Limit test:
- no
- Total exposure duration:
- 8 wk
Test conditions
- Test temperature:
- 18-23 °C
- pH:
- At test start (day 0): 5.80-6.05
At test end (day 56): 5.96-6.15 - Moisture:
- At test start (day 0): 17.7-18.9 % of dry weight
At test end (day 56): 22.7-24.9 % of dry weight - Details on test conditions:
- TEST SYSTEM
- Test container (material, size): Round plastic boxes with transparent and perforated lids; inner diameter: 15 cm; bottom surface area: 177 cm2; height: 14 cm
- Amount of soil or substrate: 600 g soil dry weight
- No. of organisms per container (treatment): 10
- No. of replicates per treatment group: 4
- No. of replicates per control: 8
SOURCE AND PROPERTIES OF SUBSTRATE (if soil)
- Composition (if artificial substrate):
- 5 % peat (air-dried and finely ground);
- 20 % kaolin (kaolinite content > 30 %);
- 74 % air-dried quartz sand (sand with > 50 % particle size of 0.05-0.2 mm);
- 0.20 % calcium carbonate
- Maximum water holding capacity: 37.2 g/100 g dry weight
- Pretreatment of soil: Artificial soil was moistened to 27 % of the maximum water holding capacity two days prior to test initiation.
- Storage (condition, duration): Moistened soil was kept covered to prevent evaporative water losses, 2 days
OTHER TEST CONDITIONS
- Photoperiod: 16 h light:8 h dark
- Light intensity: 400-800 lx
- Feeding during test: Cattle manure (contamination status not specified), weekly
- Moistening: Replicates were weighed weekly. Evaporated water was replenished by adding demineralised water to maintain the soil moisture. Additional moistening was performed in case the soil appeared too dry.
EFFECT PARAMETERS MEASURED:
- Body weight (biomass) of adult earthworms, at 0 d (test start) and at 28 d
- Mortality of adult earthworms, at 28 d
- Morphological changes of adult earthworms, at 28 d
- Reproduction (number of offspring), at 56 d
TEST CONCENTRATIONS
- Spacing factor for test concentrations: ~ 2
- Range finding study
- Test concentrations: 0 (control), 10, 100, 1000 mg test item/kg soil dry weight (SDW)
- Results used to determine the conditions for the definitive study:
- Mortality: 0 % at 0-100 mg test item/kg SDW; 25 % at 1000 mg test item/kg SDW
- Change of live weight: -12.5 % in control; -12.4 % at 10 mg test item/kg SDW; -10.6 % at 100 mg test item/kg SDW; -12.8 % at 1000 mg test item/kg SDW - Nominal and measured concentrations:
- Nominal concentrations: 0 (control), 15.625, 31.3, 62.5, 125, 250, 500 mg test item/kg soil dry weight
- Reference substance (positive control):
- yes
- Remarks:
- Carbendazim; test concentrations: 0.5, 1.0, 2.0, 4.0 mg active substance/kg soil dry weight
Results and discussion
Effect concentrationsopen allclose all
- Key result
- Duration:
- 28 d
- Dose descriptor:
- NOEC
- Effect conc.:
- 500 mg/kg soil dw
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- mortality
- Duration:
- 28 d
- Dose descriptor:
- NOEC
- Effect conc.:
- 500 mg/kg soil dw
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- other: biomass
- Duration:
- 56 d
- Dose descriptor:
- other: EC20
- Effect conc.:
- 343 mg/kg soil dw
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- reproduction
- Key result
- Duration:
- 56 d
- Dose descriptor:
- NOEC
- Effect conc.:
- 250 mg/kg soil dw
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- reproduction
- Duration:
- 56 d
- Dose descriptor:
- LOEC
- Effect conc.:
- 500 mg/kg soil dw
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- reproduction
- Details on results:
- - Mortality at end of exposure period: No significant mortality (< 10 %) was observed in the controls and all test concentrations
- Total mass of adults at beginning of test: 0.33-0.59 g per individual
- Changes in body weight of live adults (% of initial weight) at end of exposure period: 30.8 ± 7.22 % (control)
- No. of offspring produced: 79 ± 14 juveniles (control)
- Morphological abnormalities: No significant morphological symptoms were observed in the controls and all test concentrations.
- Behavioural abnormalities: No significant behavioural abnormalities were observed in the controls and all test concentrations. - Results with reference substance (positive control):
- Tests with the reference substance are conducted once every 12 months. In the most recent test (2016-01-21 to 2016-03-18), no effects on the reproduction of Eisenia fetida after 56 days were observed at 0.5 and 1.0 mg a.s./kg soil dry weight. Significant effects (ANOVA, α = 0.05) occurred at 2.0 and 4.0 mg a.s./kg soil dry weight. These results are in accordance with OECD 222, which states that significant effects of Carbendazim should be observed between 1.0 and 5.0 mg a.s./ kg soil dry weight.
- Reported statistics and error estimates:
- For the effect on biomass, Williams Multiple Sequential t-test Procedure (α = 0.05) was carried out for the determination of significant differences in biomass compared to the control. A Normality Test and an Equal Variance Test were conducted prior to running this test. For the effect on reproduction, significant differences were determined in comparison with the control group by t-test (α = 0.05). A Shapiro-Wilk Normality Test and Equal Variance Test were run beforehand. For the determination of the EC20 value, a regression analysis was performed (coefficient of determination (R2) and equation of the linear regression are not reported).
Any other information on results incl. tables
Table 1: Range Finding Test (14 days): Mortality and Change of Live Weight
Concentration [mg test item/kg soil dry weight] |
Mortality of adult earthworms [%] |
Change of Live weight [%] |
Control |
0 |
- 12.5 |
10 |
0 |
- 12.4 |
100 |
0 |
- 10.6 |
1000 |
25 |
- 12.8 |
Table 2: Mortality of Adult Earthworms in [%] after 28 Days of Exposure
Application rate |
Replicate |
||||||||
[mg/kg SDW] |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
Mean |
Control |
0 |
0 |
10 |
0 |
0 |
0 |
0 |
0 |
1.25 |
15.625 |
10 |
0 |
0 |
0 |
--- |
2.5 |
|||
31.3 |
0 |
0 |
0 |
0 |
0 |
||||
62.5 |
0 |
0 |
0 |
0 |
0 |
||||
125 |
0 |
0 |
0 |
0 |
0 |
||||
250 |
0 |
0 |
0 |
0 |
0 |
||||
500 |
0 |
0 |
0 |
0 |
0 |
Table 3: Earthworm Behaviour and Pathological Symptoms after 28 Days of Exposure
Application rate |
Replicate |
||||||||
[mg/kg SDW] |
Observation parameter |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
Control |
A H |
10/10 |
10/10 |
9/10 1/10 |
10/10 |
10/10 |
10/10 |
10/10 |
10/10 |
15.625 |
A H |
9/10 1/10 |
10/10 |
10/10 |
10/10 |
- |
|||
31.3 |
A |
10/10 |
10/10 |
10/10 |
10/10 |
||||
62.5 |
A |
10/10 |
10/10 |
10/10 |
10/10 |
||||
125 |
A |
10/10 |
10/10 |
10/10 |
10/10 |
||||
250 |
A |
10/10 |
10/10 |
10/10 |
10/10 |
||||
500 |
A |
10/10 |
10/10 |
10/10 |
10/10 |
A = no obvious pathological symptoms; H = earthworm dead
Table 4: Body Weight Changes of the Adult Earthworms
Application rate |
Replicate |
Mean body weights per replicate |
Mean body weight change of earthworms |
|||||
Test start |
28 days |
Per replicate |
Mean ± SD |
Sig. |
||||
[g] |
[g] |
[g] |
[%] |
[g] |
[%] |
|||
Control |
1 |
0.43 |
0.54 |
0.11 |
25.6 |
0.13 ± 0.03 |
30.8 ± 7.22 |
No |
2 |
0.44 |
0.55 |
0.11 |
25.0 |
||||
3 |
0.43 |
0.57 |
0.14 |
32.6 |
||||
4 |
0.44 |
0.57 |
0.13 |
29.5 |
||||
5 |
0.43 |
0.56 |
0.13 |
30.2 |
||||
6 |
0.44 |
0.54 |
0.10 |
22.7 |
||||
7 |
0.43 |
0.58 |
0.15 |
34.9 |
||||
8 |
0.44 |
0.64 |
0.20 |
45.5 |
||||
15.625 |
1 |
0.43 |
0.57 |
0.14 |
32.6 |
0.15 ± 0.02 |
35.1 ± 3.96 |
No |
2 |
0.44 |
0.59 |
0.15 |
34.1 |
||||
3 |
0.43 |
0.57 |
0.14 |
32.6 |
||||
4 |
0.44 |
0.62 |
0.18 |
40.9 |
||||
31.3 |
1 |
0.43 |
0.61 |
0.18 |
41.9 |
0.15 ± 0.04 |
35.1 ± 8.82 |
No |
2 |
0.44 |
0.57 |
0.13 |
29.5 |
||||
3 |
0.43 |
0.54 |
0.11 |
25.6 |
||||
4 |
0.44 |
0.63 |
0.19 |
43.2 |
||||
62.5 |
1 |
0.43 |
0.61 |
0.18 |
41.9 |
0.16 ± 0.04 |
37.4 ± 9.77 |
No |
2 |
0.44 |
0.65 |
0.21 |
47.7 |
||||
3 |
0.43 |
0.58 |
0.15 |
34.9 |
||||
4 |
0.44 |
0.55 |
0.11 |
25.0 |
||||
125 |
1 |
0.43 |
0.54 |
0.11 |
25.6 |
0.16 ± 0.04 |
36.7 ± 9.15 |
No |
2 |
0.44 |
0.65 |
0.21 |
47.7 |
||||
3 |
0.43 |
0.58 |
0.15 |
34.9 |
||||
4 |
0.44 |
0.61 |
0.17 |
38.6 |
||||
250 |
1 |
0.43 |
0.60 |
0.17 |
39.5 |
0.15 ± 0.02 |
35.1 ± 4.33 |
No |
2 |
0.44 |
0.57 |
0.13 |
29.5 |
||||
3 |
0.43 |
0.59 |
0.16 |
37.2 |
||||
4 |
0.44 |
0.59 |
0.15 |
34.1 |
||||
500 |
1 |
0.43 |
0.61 |
0.18 |
41.9 |
0.18 ± 0.03 |
42.0 ± 6.52 |
No |
2 |
0.44 |
0.61 |
0.17 |
38.6 |
||||
3 |
0.43 |
0.65 |
0.22 |
51.2 |
||||
4 |
0.44 |
0.60 |
0.16 |
36.4 |
SD = Standard deviation
Sig. = Statistical Significance (Williams Multiple Sequential t-test Procedure, a = 0.05) compared to control
Table 5: Reproduction Rate (Number of Juveniles after 8 Weeks)
Application rate [mg/kg dry soil weight] |
Replicate |
Number of juveniles |
Mean ± SD |
CV [%] |
[%] of control |
Sig. |
Control |
1 |
61 |
79 ± 14.0 |
17.7 |
- |
- |
2 |
98 |
|||||
3 |
64 |
|||||
4 |
74 |
|||||
5 |
92 |
|||||
6 |
83 |
|||||
7 |
89 |
|||||
8 |
67 |
|||||
15.625 |
1 |
60 |
68 ± 13.7 |
20.1 |
86.1 |
No |
2 |
59 |
|||||
3 |
88 |
|||||
4 |
64 |
|||||
31.3 |
1 |
65 |
64 ± 11.6 |
18.2 |
81.0 |
No |
2 |
58 |
|||||
3 |
79 |
|||||
4 |
52 |
|||||
62.5 |
1 |
56 |
66 ± 11.2 |
16.9 |
83.5 |
No |
2 |
63 |
|||||
3 |
63 |
|||||
4 |
82 |
|||||
125 |
1 |
44 |
58 ± 9.88 |
17.0 |
73.4 |
Yes* |
2 |
62 |
|||||
3 |
57 |
|||||
4 |
67 |
|||||
250 |
1 |
70 |
67 ± 10.6 |
15.8 |
84.8 |
No |
2 |
70 |
|||||
3 |
75 |
|||||
4 |
51 |
|||||
500 |
1 |
39 |
55 ± 12.3 |
22.4 |
69.6 |
Yes |
2 |
63 |
|||||
3 |
51 |
|||||
4 |
66 |
SD = Standard deviation CV = Coefficient of variation
*) = No dose-response relationship determinable, therefore not affecting the determination of NOEC/LOEC
Sig. = Statistical Significance (t - Test, a = 0.05) compared to the control
Applicant's summary and conclusion
- Validity criteria fulfilled:
- yes
- Remarks:
- Adult mortality in control < 10 %; Average number of juveniles in control > 30 per replicate; Coefficient of variation for reproduction of control < 30 %
- Conclusions:
- The test item showed no effect on the mortality and biomass of adult Eisenia fetida after 28 days exposure in this earthworm toxicity test conducted in artificial soil according to OECD test guideline 222 (28 d NOEC (mortality/biomass): 500 mg test item/kg dry soil weight (nominal)). An effect on the reproduction rate of Eisenia fetida was observed after 56 days exposure and an EC20 of 343 mg test item/kg dry soil weight (nominal) was determined, as well as a NOEC of 250 mg test item/kg dry soil weight (nominal) and a LOEC of 500 mg test item/kg dry soil weight (nominal).
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