DDT moratorium in Arizona: residues in soil and alfalfa after 12 years.
D001130:Arizona; D003634:DDT / Q000032:analysis*; D007878:Legislation as Topic; D000455:Medicago sativa / Q000032:analysis*; D010573:Pesticide Residues / Q000032:analysis*; D012989:Soil Pollutants / Q000032:analysis*; D013997:Time Factors
D010573:Pesticide Residues; D012989:Soil Pollutants; D003634:DDT