Pesticide residue levels in soils, FY 1969--National Soils Monitoring Program.
D001151:Arsenic / Q000032:analysis; D001280:Atrazine / Q000032:analysis; D002849:Chromatography, Gas; D006843:Hydrocarbons, Chlorinated; D007306:Insecticides / Q000032:analysis; D009943:Organophosphorus Compounds; D010573:Pesticide Residues / Q000032:analysis*; D012987:Soil / Q000032:analysis*; D013054:Spectrophotometry, Atomic; D014481:United States
D006843:Hydrocarbons, Chlorinated; D007306:Insecticides; D009943:Organophosphorus Compounds; D010573:Pesticide Residues; D012987:Soil; D001151:Arsenic; D001280:Atrazine