Nickel dihydroxide

Toxicity to soil macroorganisms except arthropods

Administrative data

Endpoint:

toxicity to soil macroorganisms except arthropods: long-term

Type of information:

migrated information: read-across based on grouping of substances (category approach)

Adequacy of study:

other information

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

other: Acceptable well documented publication.

Data source

Reference

Reference 1

Reference Type:

publication

Title:

Ecotoxicity of nickel to Eisenia fetida, Enchytraeus albidus and Folsomia candida.

Author:

Lock, K. and Janssen, C. R.

Year:

2002

Bibliographic source:

Chemosphere, 46, 197-200.

Reference 2

Reference Type:

secondary source

Title:

SIDS Initial Assessment Profile on Nickel and Nickel Compounds-Draft SIAR

Author:

OECD

Year:

2007

Bibliographic source:

SIDS Dossier -Draft

Materials and methods

Test guideline

Test guideline 1

Qualifier:

according to guideline

Guideline:

ISO 11268-2 (Effects of Pollutants on Earthworms. 2. Determination of Effects on Reproduction)

Test guideline 2

Qualifier:

according to guideline

Guideline:

OECD Guideline 207 (Earthworm, Acute Toxicity Tests)

Version / remarks:

for the artificial soil

GLP compliance:

no

Test material

Test material information

Constituent 1

Reference substance name:

Nickel dichloride

EC Number:

231-743-0

EC Name:

Nickel dichloride

Cas Number:

7718-54-9

IUPAC Name:

nickel(2+) dichloride

Details on test material:

- Name of test material (as cited in study report): Nickelchloride (NiCl2)

Sampling and analysis

Analytical monitoring:

yes

Test organisms

Test organisms (species):

Eisenia fetida

Animal group:

annelids

Details on test organisms:

TEST ORGANISM
- Common name: earthworm
- Source: commercial earthworm farm, but all culures have been maintained in the laboratory for at least five years

Study design

Study type:

laboratory study

Substrate type:

artificial soil

Limit test:

no

Total exposure duration:

3 wk

Test conditions

Test temperature:

20 ± 1 °C

pH:

6

Details on test conditions:

SOURCE AND PROPERTIES OF SUBSTRATE (if soil)
- Composition (if artificial substrate): according to OECD 207; 70 % sand, 20 % kaolinclay and 10 % finely ground Spagnum peat.



OTHER TEST CONDITIONS
- Photoperiod: 16:8 light/dark cycle
- Light intensity: 400-800 lux

Nominal and measured concentrations:

Nominal concentrations were 100, 180, 320, 560 and 1000 mg Ni/Kg dry wt.

Results and discussion

Effect concentrations

Effect concentrations 1

Duration:

3 wk

Dose descriptor:

NOEC

Effect conc.:

180 mg/kg soil dw

Nominal / measured:

nominal

Conc. based on:

element

Remarks:

Nickel

Basis for effect:

reproduction

Effect concentrations 2

Duration:

3 wk

Dose descriptor:

EC50

Effect conc.:

262 mg/kg soil dw

Nominal / measured:

nominal

Conc. based on:

element

Remarks:

Nickel

Basis for effect:

reproduction

Effect concentrations 3

Duration:

3 wk

Dose descriptor:

EC100

Effect conc.:

1 000 mg/kg soil dw

Nominal / measured:

nominal

Conc. based on:

element

Remarks:

Nickel

Basis for effect:

reproduction

Effect concentrations 4

Duration:

3 wk

Dose descriptor:

NOEC

Effect conc.:

284.3 mg/kg soil dw

Nominal / measured:

nominal

Conc. based on:

other: Nickeldihydroxid

Basis for effect:

reproduction

Remarks on result:

other: Result calculated for Nickeldihydroxid

Effect concentrations 5

Duration:

3 wk

Dose descriptor:

EC50

Effect conc.:

413.86 mg/kg soil dw

Nominal / measured:

nominal

Conc. based on:

other: Nickeldihydroxid

Basis for effect:

reproduction

Remarks on result:

other: Result calculated for Nickeldihydroxid

Effect concentrations 6

Duration:

3 wk

Dose descriptor:

EC100

Effect conc.:

1 579.6 mg/kg soil dw

Nominal / measured:

nominal

Conc. based on:

other: Nickeldihydroxid

Basis for effect:

reproduction

Remarks on result:

other: Result calculated for Nickeldihydroxid