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Environmental fate & pathways

Phototransformation in water

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Description of key information

The rate of photodegradation in water is pH dependent and varies between the different EDTA metal complexes. In case of EDTA metal complexes with iron a rapid degradation by photolysis in surface water is expected.

Key value for chemical safety assessment

Additional information

Several studies on photolysis with EDTA complexes have been carried out and were described in detail in the EU Risk Assessment Report (2004). Some of the cited publications show that photolytic degradation in surface waters is relevant for the EDTA complex with iron [Lockhart 1975; Frank & Rau 1990; Svenson et al. 1989; Kari 1994].