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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Sediment toxicity

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Administrative data

Link to relevant study record(s)

Reference
Endpoint:
sediment toxicity: short-term
Type of information:
experimental study
Adequacy of study:
key study
Study period:
10 days
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
study well documented, meets generally accepted scientific principles, acceptable for assessment
Justification for type of information:
Study based on guidelines from the Paris Convention to assess toxicity to marine sediment organisms.
Worked performed 2007 to GLP, using commercial grade material
Qualifier:
equivalent or similar to guideline
Guideline:
other: PARCOM Guideline MAFF/ERT 1994
Principles of method if other than guideline:
Animals collected from wild.
Sediment collected from intertidal area and organic content measured and organisms introduced to the sediment.
10 day duration and at end of period, sediment filtered and live or dead animals counted. Missing animals were assumed dead.
GLP compliance:
yes (incl. QA statement)
Specific details on test material used for the study:
Commercial grade up to 60% actives
Analytical monitoring:
not specified
Vehicle:
no
Test organisms (species):
Corophium volutator
Details on test organisms:
Caught wild.
Study type:
laboratory study
Test type:
static
Water media type:
saltwater
Type of sediment:
natural sediment
Limit test:
no
Duration:
10 d
Exposure phase:
total exposure duration
Post exposure observation period:
No
Test temperature:
15 C (+/- 2C)
pH:
7.9 - 8.3
Dissolved oxygen:
> 94%
Salinity:
3.3%
Nominal and measured concentrations:
0, 52, 252, 888, 3034, 10110 mg/kg dry weight sediment nominal
Reference substance (positive control):
no
Duration:
10 d
Dose descriptor:
LC10
Effect conc.:
> 252 - < 888 mg/kg sediment dw
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
mortality
Duration:
10 d
Dose descriptor:
LC100
Effect conc.:
> 3 034 - < 10 110 mg/kg sediment dw
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
mortality
Duration:
10 d
Dose descriptor:
LC50
Effect conc.:
ca. 1 880 mg/kg sediment dw
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
mortality
Key result
Duration:
10 d
Dose descriptor:
LC50
Effect conc.:
ca. 1 070 mg/kg sediment dw
Nominal / measured:
estimated
Conc. based on:
act. ingr.
Basis for effect:
mortality
Details on results:
LC50 estimated based on typical 57% activity of commerical grade material.
Validity criteria fulfilled:
yes
Conclusions:
The estimated LC50 for the active substance is just over 1000 mg/kg/dry sediment

Description of key information

The estimated LC50 for the active substance is just over 1000 mg/kg/dry sediment

Key value for chemical safety assessment

EC50 or LC50 for marine water sediment:
1 070 mg/kg sediment dw

Additional information