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Environmental fate & pathways

Biodegradation in water: screening tests

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Since the substance is volatile, clear statements to the biodegradation can be derived only from the Respirometer test . All other tests resulted in statement to the elimination from water. The respirometer test according to OECD guideline 301 F performed by BASF (1981) shows a biodegradion rate of 10 - 30 % after 28 days. This result is supported by a QSAR estimation carried out with CATALOGIC 301 C (v10.14 June,2017). A biodegradation of 2% after 28 is estimated. The prediction is considered as reliable since the the molecule falls into parametric, structural and metabolic domain of the model. The substance is therefore assessed in a weight-of-evidence approach as not readily biodegradable according to OECD criteria.

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