variables.txt

geochemical composition data of 146 marine sediments wastes collected before dredging operations between 2010 and 2021.Variables content in the dataset - Id_sample: Sample identification number; LAT_RGF93: Latitude of the sampling point; LONG_RGF93: Longitude of the sampling point; Sediment_type: harbor type; pH: hydrogen potential measurements; Cl: Chloride content (mg Cl kg-1 w.w.); F: Fluoride content (mg F kg-1 w.w.); SO4: Sulphate content (mg SO4 kg-1 w.w.); Cd: Cadmium content (mg Cd kg-1 w.w.); Cr: Chromium content (mg Cr kg-1 w.w.); Al: Aluminium content (mg Al kg-1 w.w.); As: Arsenic content (mg As kg-1 w.w.); Cu: Copper content (mg Cu kg-1 w.w.) ; Ni: Nickel content (mg Ni kg-1 w.w.) ; Pb: Lead content (mg Pb kg-1 w.w.); Zn: Zinc content (mg Zn kg-1 w.w.); Hg: Mercury content (mg Hg kg-1 w.w.); TBT: Tributyltin content (µg TBT kg-1 w.w.); HAP: Polycyclic aromatic hydrocarbons content (mg HAP kg-1 w.w.); PCB: Polychlorinated biphenyls content (mg PCB kg-1 w.w.); Sand: Gravel content (> 2000µm) (%); Mud_2mm: Vase (fine fraction <63 µm, over <2mm) content (%); Density: Bulk density (g cm-3); Total_N: Total nitrogen content (g N kg −1 w.w.); Total_P: Total Phosphorus content (mg P2O5 kg-1 w.w.); DM: Dry matter content (%); OM: Organic Matter content (g kg −1 w.w.). (w.w.: wet weight).