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Chemicals

Sind Stoffe persistenter als die Testsysteme glauben lassen?

Überprüfung der Testsysteme zur Persistenzbewertung am Beispiel der Hydrolyse

Influence of particles being present in aquatic environments on the hydrolytic degradation of organic substances

Hydrolysis is an abiotic degradation process that influences the fate of many water-soluble substances in the environment. The ability of chemicals to undergo hydrolysis is currently tested in purified lab water in accordance with OECD guideline 111. It has been suggested that the addition of particles such as sediment or microplastic fibers i.e. may result in a change in the rate of hydrolysis. The project showed that adding commonly occurring particles in aquatic environments can lead to a reduced hydrolysis rate of organic substances, probably especially for sorbing cationic compounds. However, this effect is small compared to the influences known to occur for changes of pH or temperature.

Series
Texte | 28/2022
Number of pages
71
Year of publication
Author(s)
Friedrich Wendel, Thomas Ternes
Language
English
Project No. (FKZ)
3714 65 419 0
Publisher
German Environment Agency
Additional information
PDF is accessible
File size
3759 KB
Price
0,00 €
Print version
not available
rated as helpful
8
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Tags:
 hydrolysis  REACH  chemicals  persistency  Degradation  micropollutants