Sorption of selected antiparasitics in soils and sediments.

ABSTRACT:

Background

Veterinary pharmaceuticals can enter the environment when excreted after application and burden terrestrial and aquatic ecosystems. However, knowledge about the basic process of sorption in soils and sediments is limited, complicating regulatory decisions. Therefore, batch equilibrium studies were conducted for the widely used antiparasitics abamectin, doramectin, ivermectin, and moxidectin to add to the assessment of their environmental fate.

Results

We examined 20 soil samples and six sediments from Germany and Morocco. Analysis was based on HPLC-fluorescence detection after derivatization. For soils, this resulted in distribution coefficients K _D of 38-642 mL/g for abamectin, doramectin, and ivermectin. Moxidectin displayed K _D

SUBMITTER: Heinrich AP 

PROVIDER: S-EPMC8253237 | biostudies-literature | 2021

REPOSITORIES: biostudies-literature