title: Water sampling.
mesh_terms: D005618:Fresh Water; D006801:Humans; D006846:Hydrocarbons, Halogenated / Q000032:analysis*; D014873:Water Pollutants / Q000032:analysis*; D014874:Water Pollutants, Chemical / Q000032:analysis*; D014881:Water Supply / Q000032:analysis
chemical_list: D006846:Hydrocarbons, Halogenated; D014873:Water Pollutants; D014874:Water Pollutants, Chemical