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Environmental fate & pathways

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The adsorption coefficient (Koc) on soil and on sewage sludge using high performance liquid chromatography (HPLC) was estimated according to OECD test methods. Log Koc soil was estimated to be 1.70 and log Koc.sewage sludge was estimated to be 1.72. For the degradation product formed by hydrolysis Log Koc soil was estimated to be -1.34 and log Koc sewage sludge was estimated to be -1.57. The substance and its degradation product are both regarded as being highly mobile in soil.

The Henry's Law constant of 1.92 Pa-m3/mole indicates that the substance may not be significantly volatile from surface water.

Distribution in environmental compartments has been calculated using a Fugacity model according to Mackay, Level III. Distribution in various environmental compartments is estimated as: Air - 0.0363%; Water - 32.8%; Soil - 67.1% and Sediment - 0.0738%.

Refining modelling to examine distribution following emissions to waste water results in the following distribution:Air - 0.0319%; Water - 99.6%; Soil - 0.284% and Sediment - 0.0482%