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Environmental fate & pathways

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The adsorption coefficient of the test substance on soil is estimated (OECD 121 and EU method C.19) as log Koc of 1.1 ± 0.7 (pH = 6.7, 25ºC) with a lower limit of 0.6 ± 0.8 and an upper limit of 3.0 ± 0.5 (pH 6.7, 25ºC). The adsorption coefficient of the test substance on sewage sludge is estimated as log Koc of 1.3 ± 0.9 (pH = 6.7, 25ºC) with a lower limit of 0.8 ± 1.0 and an upper limit of 3.3 ± 0.7.

 

In general substances with a Koc <500 – 1000 L/kg are not likely sorbed to sediment (SETAC 1993). On this basis, the substance is expected to demonstrate high mobility in soil and medium to high mobility in sewage sludge.

Information on Henry’s Law constant and distribution modelling are not required under REACh.

 

SETAC. 1993. Guidance Document on Sediment Toxicity Tests and Bioassays for Freshwater and Marine Environments. From the Workshop on Sediment Toxicity Assessment at Renesse, Netherlands on 8-10 November 1993. Hill I, Mathiessen P, Heimbach F (eds). Society of Environmental Toxicology and Chemistry – Europe, Brussels.