Registration Dossier
Registration Dossier
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EC number: 932-051-8 | CAS number: -
Sediment toxicity
Administrative data
Link to relevant study record(s)
Description of key information
There are no sediment toxicity data for the product to register Marlon ARL, but there are 3 published studies on one of the substances (LAS) that is the major constiuent of the reaction product (i.e., the read across substance LAS).
Key value for chemical safety assessment
- EC50 or LC50 for freshwater sediment:
- 105 mg/kg sediment dw
- EC10, LC10 or NOEC for freshwater sediment:
- 81 mg/kg sediment dw
Additional information
The studies are with CAS No. 68411-30-3 Sodium 4-undecylbenzenesulfonate. A 1986 OECD 218 guideline study reports the 72-hr LC50 of midge to be ~3 mg/L and the 24-day NOEC to be 2.4 mg/L. A 2006 sediment exposure of Lumbriculus and Caenorhablitis reports a 28-day EC50 of 105 mg/kg dry weight sediment (NOEC = 81), and a 3-day EC10 of 275 mg/kg dry weight sediment (NOEC = 200), respectively. The reaction product and its constituent substances are readily biodegradable and have a very low logPow. A significant distribution into the sediment compartment and a significant exposure of sediment organisms is not expected. The data for the sodium 4-decylbenzenesulfonate has been used for assessing the hazard to sediment organisms.
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