title: Nitrogen contamination of surficial aquifers--a growing legacy.
authors.affiliation: U.S. Geological Survey, Reston, Virginia, USA.
authors.forename: Larry J
authors.initials: LJ
authors.lastname: Puckett
authors.forename: Anthony J
authors.initials: AJ
authors.lastname: Tesoriero
authors.forename: Neil M
authors.initials: NM
authors.lastname: Dubrovsky
mesh_terms: D057231:Climate Change; D004784:Environmental Monitoring; D005618:Fresh Water / Q000737:chemistry*; D009566:Nitrates / Q000032:analysis* / Q000737:chemistry; D009584:Nitrogen / Q000032:analysis* / Q000737:chemistry; D058458:Nitrogen Cycle; D018570:Risk Assessment; D014874:Water Pollutants, Chemical / Q000032:analysis* / Q000737:chemistry; D014877:Water Pollution, Chemical / Q000706:statistics & numerical data; D014881:Water Supply / Q000032:analysis
chemical_list: D009566:Nitrates; D014874:Water Pollutants, Chemical; D009584:Nitrogen