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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
weight of evidence
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
data from handbook or collection of data
Justification for type of information:
Data is summaries based on the information of the read across chemicals.
Reason / purpose for cross-reference:
read-across source
Reason / purpose for cross-reference:
read-across source
Qualifier:
according to guideline
Guideline:
other: As mentioned below
Principles of method if other than guideline:
WoE 1 approach was prepared on the basis of two sediment toxicity studies reported as:
WoE 2 and WoE 3
GLP compliance:
not specified
Analytical monitoring:
not specified
Vehicle:
no
Remarks:
WoE 2: no and WoE 3: no data available
Test organisms (species):
Chironomus riparius
Details on test organisms:
WoE 2 and WoE 3:
Species Latin Name: Chironomus riparius
Species Common Name: Midge
Study type:
laboratory study
Test type:
static
Water media type:
freshwater
Type of sediment:
artificial sediment
Remarks:
WoE2: DUTCH STD WATER
Duration:
48 h
Exposure phase:
total exposure duration
Reference substance (positive control):
not specified
Key result
Duration:
48 h
Dose descriptor:
LC50
Effect conc.:
> 800 - < 910 mg/L
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
mortality
Details on results:
The median lethal concentration of test chemical was reported to be in the range of 800 to 910 mg/L, respectively.
Validity criteria fulfilled:
not specified
Conclusions:
On the basis of the read across chemical and applying the weight of evidence approach, the effect of test chemical was studied on Chironomus riparius. for the period of 48 hours under static conditions. The medain lethal concentation of test chemical for 48 hours duration was reported to be in the range of 800 to 910 mg/L, respectively.
Executive summary:

Effect of test chemical was summaried based on the read across chemicals and applying the weight of evidence approach; details are mentioned beow:

The effect of test chemical was studied on Chironomus riparius. for the period of 48 hours under static conditions. The medain lethal concentation of test chemical for 48 hours duration was reported to be 800 mg/L.

The effect of test chemical on chironomus riparius, was studied for 48 hours duration. based on the mortality the LC50 was reported to be 910 mg/L.

On the basis of the read across chemical and applying the weight of evidence approach, the effect of test chemical was studied on Chironomus riparius. for the period of 48 hours under static conditions. The medain lethal concentation of test chemical for 48 hours duration was reported to be in the range of 800 to 910 mg/L, respectively.

Description of key information

On the basis of the read across chemical and applying the weight of evidence approach, the effect of test chemical was studied on Chironomus riparius. for the period of 48 hours under static conditions. The medain lethal concentation of test chemical for 48 hours duration was reported to be in the range of 800 to 910 mg/L, respectively.

Key value for chemical safety assessment

EC50 or LC50 for freshwater sediment:
800 mg/kg sediment dw

Additional information

Effect of test chemical was summaried based on the read across chemicals and applying the weight of evidence approach; details are mentioned beow:

The effect of test chemical was studied on Chironomus riparius. for the period of 48 hours under static conditions. The medain lethal concentation of test chemical for 48 hours duration was reported to be 800 mg/L.

The effect of test chemical on chironomus riparius, was studied for 48 hours duration. based on the mortality the LC50 was reported to be 910 mg/L.

On the basis of the read across chemical and applying the weight of evidence approach, the effect of test chemical was studied on Chironomus riparius. for the period of 48 hours under static conditions. The medain lethal concentation of test chemical for 48 hours duration was reported to be in the range of 800 to 910 mg/L, respectively.