Abstract
AbstractPesticide contamination of bee products is a widespread phenomenon. Due to its composition, bee bread is affected by both lipophilic and hydrophilic substances. As proof of concept of a monitoring campaign and to better understand the extent of contamination, we developed an analytical method based on a modified QuEChERS extraction, with subsequent separation by liquid chromatography and detection by mass spectrometry. This allowed for the quantitation of 51 agricultural- or beekeeping-associated pesticides in bee bread. The workflow was applied to 60 samples taken biweekly throughout spring to autumn 2022 from five colonies at a Swiss apiary in an agricultural area. In total, 30 pesticides were identified (> LOD), among which 26 pesticides were quantitated. The total number of pesticides detected per colony ranged from 11 to 19. The most prevalent substances (> LOQ) were two neonicotinoid insecticides, acetamiprid and thiacloprid (max. 16 μg/kg and 37 μg/kg, respectively); seven fungicides, azoxystrobin (max. 72 μg/kg), boscalid (max. 50 μg/kg), cyprodinil (max. 1965 μg/kg), difenoconazole (max. 73 μg/kg), mandipropamid (max. 33 μg/kg), pyraclostrobin (max. 8 μg/kg) and trifloxystrobin (max. 38 μg/kg); and two herbicides, prosulfocarb (max. 38 μg/kg) and terbuthylazine (max. 26 μg/kg). The study revealed strong variability in pesticide occurrence and concentrations among colonies sampled at the same site and date. The applied biweekly sampling of bee bread from March to August was shown to be reliable in capturing peak contaminations and revealing the onset of certain pesticides in bee bread. The study provides an adequate practical approach for pesticide monitoring campaigns.
Publisher
Springer Science and Business Media LLC
Subject
Health, Toxicology and Mutagenesis,Pollution,Environmental Chemistry,General Medicine
Reference48 articles.
1. Bartlett DW, Clough JM, Godwin JR, Hall AA, Hamer M, Parr-Dobrzanski B (2002) The strobilurin fungicides. Pest Manag Sci 58(7):649–662. https://doi.org/10.1002/ps.520
2. Beyer M, Lenouvel A, Guignard C, Eickermann M, Clermont A, Kraus F, Hoffmann L (2018) Pesticide residue profiles in bee bread and pollen samples and the survival of honey bee colonies-a case study from Luxembourg. Environ Sci Pollut Res Int 25(32):32163–32177. https://doi.org/10.1007/s11356-018-3187-4
3. Deutsches Bienenmonitoring (2021a) Abschlussbericht Zeitraum 2017-2019. Hohenheim University, Germany. Retrieved 18.02.2023 from https://bienenmonitoring.uni-hohenheim.de
4. Deutsches Bienenmonitoring (2021b) Zwischenbericht Zeitraum 2020. Hohenheim University, Germany. Retrieved 18.02.2023 from https://bienenmonitoring.uni-hohenheim.de
5. Bogdanov S (2005) Contaminants of bee products. Apidologie 37(1):1–18. https://doi.org/10.1051/apido:2005043
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