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Environmental fate & pathways

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In a study performed according to OECD 301B, SLMI is readily biodegradable (83.9% in 28d) and passes the 10day window.

A continuous activated sludge (CAS) test was performed with 14C- lauryl sulfoethyl ester, sodium salt according to guideline OECD 303A. The protocol was modified so that the fate of the test substance could be assessed at environmentally realistic concentrations using radiolabelled test substance along with un-labelled test substance. The total removal percentage as monitored from day 40 to day 72 range from 99.89 to 99.99% using 14C scintilation counting. This result demonstrates a near complete removal of parent compound at stringent STP considitions (SRT of 6 ± 1 day). Removal of the test substance from the influent through adsorption onto sludge ranged from 0.21 to 0.28%, demonstrating that the test substance was primarily removed by biodegradation (Gore, 2010).