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近来全球政策的变化使得美国削减了核武器并中止了钚的生产，但以前在钚的生产、核弹头的拆除、一些设施的去污和退役中已经产生了一些钚污染物，而这些污染物必须进行进一步的管理。在处理每批污染物时，处理者必须面临的问题是该污染物在废弃之前是将钚清除还是不进行清除而直接作废弃处理。美国能源部（ＤＯＥ）目前已制定出了一种称作钚清除限值系统（ＰＲＬＳ）的新方法，可用此方法对上述选择作出决定。该方法的基础是定义了一个钚浓度值，若钚浓度高于此值，则将钚回收后再对污染材料进行处置时所需费用较小；若钚浓度低于此值，则不进行回收而对污染物直接进行处置（按适当的处置法）时费用较少。该方法将ＤＯＥ现存的钚污染材料进行处置的总费用降至最低。目前在每个场地都用该方法来分析各类钚污染物的废弃限值，但各场地在作出清除或废弃决定时需要采用统一的标准途径。为此，能源部制定了一套钚清除限值的部级标准，ＤＯＥ希望在１９９３财政年度中所有处理钚污染物的设施都要实施这一方法。
Recent global policy changes have caused the United States to slash its nuclear weapons and suspend the production of plutonium. However, some plutonium pollutants have previously been generated in the production of plutonium, the demolition of nuclear warheads, the decontamination and decommissioning of some facilities, and these pollutants must be carried out Further management. When dealing with each batch of contaminants, the problem that the disposer must face is whether the contaminants should be disposed of before they are disposed of, with or without plutonium removal. The United States Department of Energy (DOE) has now developed a new method called the Plutonium Removal Limiting System (PRLS) that can be used to make decisions about these options. The method is based on the definition of a plutonium concentration value which, if the concentration of plutonium is higher than this value, will be less expensive to dispose of plutonium and then to dispose of the contaminated material; if the plutonium concentration falls below this value, no recovery will be carried out Disposal of contaminants directly (as appropriate) is less costly. This approach minimizes the total cost of disposing of DOE’s existing plutonium-contaminated material. This method is currently used at each site to analyze the waste limits for various types of plutonium contaminants, but a uniform standard approach is required for each site to make its removal or abandonment decisions. To this end, DOE has developed a set of ministerial standards for plutonium removal limits, and DOE hopes that all facilities handling plutonium contaminants would implement this method during fiscal year 1993.