Nibs, Beach sediment, Polycyclic aromatic hydrocarbons (PAHs), Plastic pellets, Plastic pollution, Geologic Sediments - chemistry, Environmental Monitoring, Water Pollution, Chemical - statistics & numerical data, Plastics - analysis, Water Pollutants, Chemical - analysis, Polycyclic Aromatic Hydrocarbons - analysis, Polycyclic aromatic hydrocarbons, Sedimen...