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Diss Factsheets

Environmental fate & pathways

Bioaccumulation: aquatic / sediment

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Administrative data

Link to relevant study record(s)

Description of key information

EU risk assessment, p.19 (2009), Accumulation and metabolism
MITI (1992) measured bioconcentration in Cyprinus carpio (TG OECD 305) with test concentrations of 0.5 mg l-1 and 0.05 mg l-1. Duration of exposure was 6 weeks, flow rate 200-800 ml min-1, temperature approximately 25 °C. The measured BCFs varied between 1.1 and < 4.6.
A BCF of 3.162 was calculated for ionic substances with a logKow < 5 using BCFWIN version 2.15. The method used by BCFWIN (Meylan et al., 1998) indicates that logBCF of such compounds varied in the training set between 0 and 1.
The pH corrected experimental logKow is 0.76 at pH 7. At pH of 6, logKow is 1.75, and at pH of 5, the logKow is 2.68.

Key value for chemical safety assessment

BCF (aquatic species):
3.162 dimensionless

Additional information

EU risk assessment, p.19 (2009), Accumulation and metabolism:

According to the very low Koc in the environmentally relevant pH-range, no significant geoaccumulation is to be expected.