Datasets used to support the work presented in: Beringer, C.J., K.W. Goyne, R.N. Lerch, E.B. Webb, and D. Mengel. 2020: Clothianidin decomposition in Missouri wetland soils. J. Environ. Qual. JEQ-2020-05-0167-TR

Neonicotinoid pesticides can persist in soils for extended time periods; however, they also have a high potential to contaminate ground and surface waters. Studies have reported negative effects associated with neonicotinoids and non-target taxa, including aquatic invertebrates, pollinating insect species, and insectivorous birds. This study evaluated factors associated with clothianidin (1-[(2-chloro-1,3-thiazol-5-yl) methyl]-3-methyl-2-nitroguanidine, CTN) degradation and sorption in Missouri wetland soils to assess the potential for wetland soils to mitigate potential environmental risks associated with neonicotinoids. Solid-to-solution partition coefficients (Kd) for CTN sorption to eight wetland soils were determined via single-point sorption experiments, and sorption isotherm experiments were conducted using the two most contrasting soils. Clothianidin degradation was determined under oxic and anoxic conditions over 60 d. Degradation data were fit to zero- and first-order kinetic ...

新烟碱类杀虫剂（Neonicotinoid pesticides）可在土壤中长时间残留，同时具备极高的地下水与地表水污染风险。已有研究证实，新烟碱类物质会对水生无脊椎动物、传粉昆虫类群及食虫鸟类等非靶标生物类群产生负面效应。本研究以密苏里州湿地土壤为研究对象，针对噻虫胺（clothianidin，化学名：1-[(2-氯-1,3-噻唑-5-基)甲基]-3-甲基-2-硝基胍，简称CTN）的降解与吸附过程进行评估，以明确湿地土壤对新烟碱类农药相关潜在环境风险的缓解潜力。研究通过单点吸附实验测定了8种湿地土壤对CTN的固液分配系数（Kd），并选取两类差异最显著的土壤开展吸附等温线实验；同时在有氧与厌氧条件下开展了为期60天的CTN降解实验，将降解数据拟合至零级与一级动力学模型……