Chemical availability of metals associated with Great Salt Lake dust from Farmington Bay

This dataset contains elemental concentration data for dust collected from the exposed lakebed of Great Salt Lake (GSL) and subjected to a suite of complementary leaching extractions designed to evaluate metal(loid) mobility and bioaccessibility. A composite <63-µm dust sample was extracted using ammonium acetate, nitric acid, aqua regia, and a simplified simulated gastric fluid to represent environmentally mobile, mineral-bound, total, and ingestion-relevant fractions, respectively. Concentrations were quantified by ICP-MS for a broad suite of elements, including USEPA Priority Pollutants. The dataset supports assessment of element-specific solubility, potential environmental transport, and human exposure via oral ingestion.

本数据集涵盖从大盐湖（Great Salt Lake, GSL）裸露湖床采集的粉尘的元素浓度数据，配套开展了一系列互补性浸提萃取实验，用于评估金属/类金属的迁移性与生物可及性。针对粒径小于63微米的混合粉尘样品，分别采用乙酸铵、硝酸、王水以及简化模拟胃液进行浸提，以分别表征环境可迁移组分、矿物结合态组分、全量组分以及经口摄入相关组分。采用电感耦合等离子体质谱法（Inductively Coupled Plasma Mass Spectrometry, ICP-MS）对包括美国环境保护署（United States Environmental Protection Agency, USEPA）优先污染物在内的多种元素的浓度进行了定量分析。本数据集可用于评估元素特异性溶解度、潜在环境迁移行为以及经口摄入途径的人体暴露风险。