Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Currently viewing:

Administrative data

Link to relevant study record(s)

Reference
Endpoint:
sediment toxicity: long-term
Type of information:
read-across from supporting substance (structural analogue or surrogate)
Adequacy of study:
key study
Study period:
October 10 to November 13, 2014.
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Study performed in accordance with OECD & ASTM test guidelines in compliance with GLP.
Justification for type of information:
This study is read across to Phenol, isopropylated, phosphate (3:1); CAS No 68937-41-7; EC No 273-066-3.
Reason / purpose for cross-reference:
read-across source
Qualifier:
according to guideline
Guideline:
OECD Guideline 218 (Sediment-Water Chironomid Toxicity Test Using Spiked Sediment)
Deviations:
no
Qualifier:
according to guideline
Guideline:
other: ASTM Standard E 1706-05: Standard Test Method for Measuring the Toxicity of Sediment-Associated Contaminants with Freshwater Invertebrates.
Deviations:
no
Key result
Duration:
28 d
Dose descriptor:
EC50
Effect conc.:
87 mg/kg sediment dw
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
emergence rate
Remarks on result:
other: 95% confidence interval of 73.6 to 102 mg/kg.
Key result
Duration:
28 d
Dose descriptor:
NOEC
Effect conc.:
< 37 mg/kg sediment dw
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
development rate
Key result
Duration:
28 d
Dose descriptor:
LOEC
Effect conc.:
37 mg/kg sediment dw
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
development rate

Description of key information

Sediment Toxicity

Key value for chemical safety assessment

EC50 or LC50 for freshwater sediment:
87 mg/kg sediment dw
EC10, LC10 or NOEC for freshwater sediment:
37 mg/kg sediment dw

Additional information

This study is read across to Phenol, isopropylated, phosphate (3:1); CAS No 68937-41-7; EC No 273-066-3.

Midges (Chironomus riparius) were exposed for 28 days to five mean measured concentrations of sediment-incorporated Reofos 35 ranging from 37 to 688 mg/kg. There were treatment-related effects observed on emergence in the 79, 187, 366 and 688 mg/kg treatment groups and development at all tested concentrations. Based on the mean measured concentrations in sediment, the 28-day EC50 value for emergence was 87 mg/kg, with a 95% confidence interval of 73.6 to 102 mg/kg. The slope of the concentration-response curve was 2.336. Based on the effects observed on development rate, the LOEC for the study was 37 mg/kg and the NOEC was <37 mg/kg.