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Assessment of soils contamination with veterinary antibiotic residues in Northern Poland using developed MAE-SPE-LC/MS/MS methods

Łukaszewicz, Paulina, Kumirska, Jolanta, Białk-Bielińska, Anna, Dołżonek, Joanna, Stepnowski, Piotr
Environmental science and pollution research international 2017 v.24 no.26 pp. 21233-21247
agricultural soils, analytical methods, antibiotic residues, edaphic factors, enrofloxacin, monitoring, risk, soil sampling, sulfonamides, trimethoprim, veterinary drugs, Poland
Among the wide range of compounds reaching the soil are the veterinary antimicrobials. Since no regulations regarding acceptable levels of drug concentrations in the environment exist, monitoring tests, particularly concerning soils, are carried out very rarely. This study presents a preliminary assessment of the contamination of agricultural soils in Northern Poland with seven antimicrobial veterinary medicines which has never been carried out before. Veterinary drugs were detected in 54% of the examined soil samples; the most commonly detected drugs were sulfonamides and trimethoprim. The highest indicated concentrations refer to enrofloxacin (57.0 μg kg⁻¹) and trimethoprim (47.8 μg kg⁻¹). The presence of these target drugs in the soil environment confirms the need for further monitoring studies. The analytical methods developed in this study are an excellent tool to achieve this goal and allow an estimation of the risk connected with the presence of veterinary antimicrobials in soils.