Soil heavy metal

“原始数据”是指通过测量研究区域内六种重金属元素（Cr、Cu、Pb、Ni、Zn和Hg）的浓度而获得的数据。第一列X表示采样点的经度，第二列Y表示采样点的纬度，第三列Z表示采样点的高程，后列为六种重金属元素的浓度数据。利用这些数据，在EXCEL中完成了土壤重金属的描述性统计，包括最大值、最小值、平均值、标准差等。“空间变异性分析数据”用于分析土壤重金属的空间变异性。数据的第一列X表示经度（十进制表示），第二列Y表示纬度（十进制表示）。由于变异性分析要求数据服从正态分布或近似正态分布，因此除 Hg 外，其他元素都满足此要求。数据的最后一列显示了对数转换后汞浓度的正态分布。“单一污染指数”是单一污染物的指数数据。“综合污染指数”是各种污染物的综合指数数据。“源头识别数据（PCA-APCS）”是指使用PCA/APCS模型进行源头识别分析的数据。“源头识别数据（PMF）”是指使用PMF模型进行源头识别分析的数据。“不确定性”是PMF模型所需的不确定性数据。

"Raw Data" refers to the data acquired by measuring the concentrations of six heavy metal elements (Cr, Cu, Pb, Ni, Zn, and Hg) in the study area. The first column X denotes the longitude of the sampling site, the second column Y denotes the latitude of the sampling site, the third column Z denotes the elevation of the sampling site, and the remaining columns contain the concentration data of the six heavy metal elements. Descriptive statistical analyses of soil heavy metals, including maximum value, minimum value, mean value, standard deviation, etc., were performed in EXCEL using this dataset. "Spatial Variability Analysis Data" is employed to analyze the spatial variability of soil heavy metals. The first column X of this dataset represents longitude (expressed in decimal degrees), while the second column Y represents latitude (expressed in decimal degrees). Since variability analysis mandates that the data follow a normal or approximately normal distribution, all elements except Hg meet this criterion. The final column of the dataset displays the normal distribution of mercury concentration following logarithmic transformation. "Single Pollution Index" refers to the index data for a single pollutant. "Comprehensive Pollution Index" refers to the comprehensive index data for multiple pollutants. "Source Apportionment Data (PCA-APCS)" denotes the data used for source identification analysis via the PCA/APCS model. "Source Apportionment Data (PMF)" denotes the data used for source identification analysis via the PMF model. "Uncertainty" refers to the uncertainty data required for the PMF model.

搜集汇总

背景与挑战

背景概述

该数据集聚焦于土壤重金属污染研究，提供了包括Cr、Cu、Pb、Ni、Zn和Hg六种重金属元素浓度的原始测量数据，以及采样点的经纬度和高程信息。数据集还包含空间变异性分析、单一和综合污染指数计算，并利用PCA/APCS和PMF模型进行污染源头识别，适用于环境监测和土壤污染评估。