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Because Tetraglyme has predicted Koc of 3.8 L/kg (Exposure Modelling Programm EUSES 2.1) sorption to sewage sludge is very low. Therefore transfer of Tetraglyme into agricultural soil via sludge amendment can be neglected. Also indirect exposure via deposition from air is low because of rapid photodegradation of Tetraglyme in air. Based on this fact terrestrial ecotoxicity tests are not warranted.