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Ecotoxicological information

Toxicity to terrestrial arthropods

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Administrative data

Endpoint:
toxicity to terrestrial arthropods: 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: Acceptable well documented study. No analytical dose verification. Sublethal effect on reproduction was measured in a standardized soil. Standard test organism.

Data source

Reference
Reference Type:
publication
Title:
Sublethal toxicity of copper to a soil-dwelling springtail (Folsomia fimetaria) (Collembola: Isotomidae)
Author:
Scott-Fordsmand JJ et al.
Year:
1997
Bibliographic source:
Environ Toxicol Chemist 16(12): 2538-2542

Materials and methods

Principles of method if other than guideline:
21 days, standardized soil
GLP compliance:
no
Application method:
soil

Test material

Reference
Name:
Unnamed
Type:
Constituent
Details on test material:
- Name of test material (as cited in study report): CuCl2*H2O (it is likely that the dihydrate CAS: 10125-13-0, was tested)
- Analytical purity: p.a.

Sampling and analysis

Analytical monitoring:
no

Test substrate

Vehicle:
no

Test organisms

Test organisms (species):
Folsomia sp.
Animal group:
Collembola (soil-dwelling springtail)
Details on test organisms:
TEST ORGANISM/ ACCLIMATION
- Common name: Springtail
- Laboratory culture, established from field-collected animals and maintained in petri dishes on a substrate of moistened plaster of paris and charcoal. They were fed dried yeast ad libitum, and every 2 to 4 weeks the adult animals were transferred to new containers with fresh food. Prior to the experiment a synchronized culture was produced by collecting eggs (approx. 7 d old) from these stock cultures, which were allowed to hatch over a 3-d period. Animals hatched during this time were subsequently used for the following experiments.


Study design

Study type:
laboratory study
Limit test:
no
Total exposure duration:
21 d

Test conditions

Test temperature:
20°C
pH (if soil or dung study):
5.5-6.0
Photoperiod and lighting:
12:12
Reference substance (positive control):
no

Results and discussion

Effect concentrationsopen allclose all
Duration:
21 d
Dose descriptor:
EC10
Effect conc.:
38 mg/kg soil dw
Nominal / measured:
nominal
Conc. based on:
element
Remarks:
Cu
Basis for effect:
reproduction
Duration:
21 d
Dose descriptor:
EC10
Effect conc.:
66.1 mg/kg soil dw
Nominal / measured:
nominal
Conc. based on:
test mat.
Remarks:
CH2Cu2O5
Basis for effect:
reproduction

Applicant's summary and conclusion