Sediment Cores in Narragansett Bay, RI and Associated Microplastics

This data was used for the publication "Exponentially Increasing Microplastic Accumulation in an Urban Estuary: Insights from the Narragansett Bay, Rhode Island Seafloor". Grainsize.xlsx: This dataset shows grain size percents for each seafloor core. LOD_LOQ_Blanks: this dataset contains the microplastic contamination data from all procedural blanks, which were used to calculate limits of detection and limits of quantification. particle_colors: this dataset lists the colors of counted microplastic particles extracted from sediment particle_type_counts: this dataset lists the number of each microplastic particle type (bead, fiber, film, foam, fragment) found in each sediment sample. polymer_concentrations: this datasets lists the concentrations of each anthropogenic particle type found in all samples sedimentationrates: this dataset contains sediment accumulation rates calculated for each sediment core site sedrate_MPconc_MPAR: this dataset contains, for each site and sediment depth, the sediment mass accumulation rate, year derived from the sediment accumulation rate and age model, microplastic concentration, and microplastic accumulation rates本数据集用于发表论文《城市河口微塑料（microplastic）累积量呈指数增长：来自罗德岛州纳拉甘西特湾海底的研究洞察》。 Grainsize.xlsx：本数据集包含各海底岩心的粒度百分比数据。 LOD_LOQ_Blanks：本数据集包含所有流程空白的微塑料污染数据，此类数据用于计算检测限（Limit of Detection, LOD）与定量限（Limit of Quantification, LOQ）。 particle_colors：本数据集记录了从沉积物中提取并计数的微塑料颗粒的颜色类别。 particle_type_counts：本数据集列出了各沉积物样品中检出的各类微塑料颗粒（微球、纤维、薄膜、泡沫、碎屑）的数量。 polymer_concentrations：本数据集列出了所有样品中检出的各人为源颗粒类型的浓度。 sedimentationrates：本数据集包含各海底岩心站位计算得到的沉积物堆积速率数据。 sedrate_MPconc_MPAR：本数据集包含各站位及各沉积物深度对应的沉积物质量堆积速率、基于沉积物堆积速率与年代模型得到的沉积年份、微塑料浓度以及微塑料堆积速率数据。