Environmental pollution with pesticides, including neonicotinoid insecticides, is a major driver of biodiversity loss and raises concerns for both pollinators and human health. As a product of nectar foraging, honey integrates environmental contamination across large spatial scales, making it a valuable sentinel matrix for pesticide exposure. However, systematic data on neonicotinoid residues in commercial honey from tropical...

Honey bees are often exposed to a variety of contaminants, including pesticides from agricultural use. The aim of this study was to investigate the temporal entry of pesticides into the hive by examining the seasonal timing of honey bees bringing pesticide-contaminated pollen into their colonies and the subsequent accumulation of these pesticides in beeswax. Pollen and beeswax samples were collected biweekly from five colonies...

Pesticide 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 al...