title: Mercury retention in untreated water samples at the part-per-billion level.
mesh_terms: D008628:Mercury / Q000032:analysis*; D008722:Methods; D008832:Microchemistry; D014873:Water Pollutants / Q000032:analysis*; D014874:Water Pollutants, Chemical / Q000032:analysis*
chemical_list: D014873:Water Pollutants; D014874:Water Pollutants, Chemical; D008628:Mercury