title: Persistence of BHC (1, 2, 3, 4, 5, 6-hexachlorocyclohexane) and dieldrin residues in field soils.
mesh_terms: D004026:Dieldrin / Q000032:analysis*; D001556:Hexachlorocyclohexane / Q000032:analysis*; D010573:Pesticide Residues / Q000032:analysis*; D012987:Soil / Q000032:analysis*; D013997:Time Factors
chemical_list: D010573:Pesticide Residues; D012987:Soil; D001556:Hexachlorocyclohexane; D004026:Dieldrin