Geochemical dataset of Groundwater in Kribi (South Cameroon): Indicators of Marine Intrusion and Water Quality

This dataset contains the physico-chemical and chemical parameters of groundwater samples collected from Kribi, South Cameroon, aimed at assessing water quality and salinity levels. The dataset includes two Excel files: Database_Geochemical Data (physical parameters) and Database_Chemical Parameters (chemical analyses). The first file comprises 60 data points distributed across three tables: Table 1 – River and Spring, Table 2 – Domestic Wells, and Table 3 – Public Boreholes. Measured parameters include Temperature (°C), pH, Electrical Conductivity (µS/cm), Total Dissolved Solids (mg/L), Salinity (%), Elevation (m), Geographic Coordinates (Easting, Northing), and Source Type. Among these 60 samples, 26 were selected for laboratory chemical analysis based on salinity levels, forming the second file (Database_Chemical Parameters), which contains chemical analyses from Public Boreholes, including cations (Na⁺, K⁺, NH₄⁺, Ca²⁺, Mg²⁺), anions (F⁻, Cl⁻, NO₃⁻, SO₄²⁻), and hydrochemical indices (SAR, MAR, KR). Physical parameters were measured in the field using portable probes and GPS, while chemical parameters were analyzed in the laboratory by MP-AES for cations and Ion Chromatography (IC) for anions. Hydrochemical indices were calculated using standard formulas. This dataset provides essential baseline information for evaluating groundwater quality, potential salinization, and suitability for domestic or agricultural use. It is intended for hydrogeological research, water resource management planning, and environmental monitoring.本数据集收录了从喀麦隆南部克里比（Kribi）采集的地下水样本的物理化学与化学参数，旨在评估地下水水质与盐度水平。数据集包含两份Excel文件：《地球化学数据（物理参数）数据库》与《化学参数（化学分析）数据库》。其中第一份文件包含60组数据，分为三个数据表：表1——河流与泉水、表2——民用井、表3——公共钻孔井。测定参数涵盖温度（℃）、pH值、电导率（µS/cm）、总溶解固体（mg/L）、盐度（%）、海拔（m）、地理坐标（东向、北向）以及水源类型。在上述60组样本中，有26组依据盐度水平被选取用于实验室化学分析，构成第二份文件《化学参数（化学分析）数据库》，该文件包含公共钻孔井的化学分析数据，涵盖阳离子（Na⁺、K⁺、NH₄⁺、Ca²⁺、Mg²⁺）、阴离子（F⁻、Cl⁻、NO₃⁻、SO₄²⁻）以及水化学指标（钠吸附比SAR、镁吸附比MAR、钾钠比KR）。物理参数通过便携式探头与GPS在野外现场测定，化学参数则在实验室完成分析：阳离子采用微波等离子体原子发射光谱法（MP-AES）检测，阴离子采用离子色谱法（IC）检测，水化学指标通过标准公式计算得出。本数据集可为评估地下水水质、潜在盐渍化程度以及生活或农业用水适用性提供关键基础信息，适用于水文地质研究、水资源管理规划以及环境监测工作。