Registration Dossier
Registration Dossier
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EC number: 225-167-9 | CAS number: 4696-57-5
Endpoint summary
Administrative data
Description of key information
Partition coefficients for different environmental compartments (sediment, suspended particulate matter, soil) have been proposed in the RIVM-report (Crommentuyn et al, 1997).
- The value for the soil that is given for barium in this report is put forward for exposure and risk assessment purposes.
- For the sediment compartment the typical Kd based on FOREGS data is put forward as a reliable value for Europe.
- A value of 1.5 has been proposed as a relevant ratio between the Kd for sediment and the Kd for suspended matter (Stortelder et al, 1989; Van de Meent et al, 1990), and this ratio was also used by RIVM for setting relevant Kd-values for various metals. Application of this factor on the KD,sediment of 3,478 L/kg, results in an estimated Kd,part.matter of 5,217 L/kg, or a log Kd,part.matter of 3.72. This value is supported by Kd values for suspended matter that were reported by Popp and Laquer (1980) for N-American Rivers (range of Log Kd:2.65-3.91) and the value derived by Li et al (1984) for the River Hudson (log Kd: 3.78).
Additional information
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