Carey A E, Gowen J A, Tai H, Mitchell W G, Wiersma G B
Pestic Monit J. 1979 Mar;12(4):209-29.
Residue data from the 1972 (FY--73) National Soils Monitoring Program are summarized. Composite samples of agricultural soil and mature crops were collected from 1,483 of the 1,533 selected 4-hectare sites in 37 states. Analyses were performed for organochlorine and organophosphorus compounds, trifluralin and polychlorinated biphenyls (PCBs); analysis for atrazine was performed only when pesticide application data indicated current-year use. Organochlorine pesticides were detected in 45 percent of the soil samples. The most frequently detected compound was dieldrin, found in 27 percent of all soil samples. Other compounds detected, in order of frequency, included DDT, aldrin, chlordane, and heptachlor epoxide, found, respectively, in 21, 9, 8, and 7 percent of all soil samples. Crop samples were collected from 727 sites. All were analyzed for organochlorines; analyses were performed for organophosphates and atrazine only when pesticide application data indicated current-year use. For all crops, 40 percent of the samples contained detectable levels of organochlorines and 10 percent contained detectable levels of organophosphates. Atrazine was not detected.
对1972年（财政年度——73年）国家土壤监测计划的残留数据进行了总结。从37个州选定的1533个4公顷场地中的1483个场地采集了农业土壤和成熟作物的混合样本。对有机氯和有机磷化合物、氟乐灵和多氯联苯（PCBs）进行了分析；仅当农药施用数据表明当年使用时才对莠去津进行分析。在45%的土壤样本中检测到有机氯农药。检测到的最常见化合物是狄氏剂，在所有土壤样本中的检出率为27%。按频率顺序检测到的其他化合物包括滴滴涕、艾氏剂、氯丹和环氧七氯，在所有土壤样本中的检出率分别为21%、9%、8%和7%。从727个场地采集了作物样本。所有样本都对有机氯进行了分析；仅当农药施用数据表明当年使用时才对有机磷酸盐和莠去津进行分析。对于所有作物，40%的样本含有可检测水平的有机氯，10%的样本含有可检测水平的有机磷酸盐。未检测到莠去津。
