Environmental Science & Technology, Год журнала: 2023, Номер 57(7), С. 2758 - 2767

Опубликована: Фев. 8, 2023

Neonicotinoids are neurotoxic insecticides and often released into nearby wetlands via subsurface tile drains can negatively impact nontarget organisms, such as amphibians. Previous studies have indicated that imidacloprid, a commonly used neonicotinoid, cross the amphibian blood–brain barrier under laboratory conditions; however, little is known about of low concentrations in field-based setting. Here, we report aqueous pesticide at wetland production areas were either connected or not to agricultural drains, quantified imidacloprid its break down products juvenile brains livers, investigated relationship between brain concentration size. Imidacloprid water samples nearly 2.5 5 times higher (brain = 4.12 ± 1.92 pg/mg protein; 0.032 0.045 μg/L) compared reference wetlands, respectively. Tile amphibians also had shorter cerebellums (0.013 0.001 mm), depicting negative cerebellum length. The metabolite, desnitro-imidacloprid, liver 2 (2 0.3 μg/g). Our results demonstrate ecological conditions may alter dimensions provide insight metabolism

Язык: Английский