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Distribution and Quality Control about Hg Element in Air Dust near the Ground of Chengdu
Author(s): 
Pages: 22-27
Year: Issue:  5
Journal: GUANGDONG TRACE ELEMENTS SCIENCE

Keyword:  降尘汞元素质量控制成都市;
Abstract: 将人类的活动看成是对有毒有害元素的生产过程,应用均值-极差控制图对成都市城区内大气降尘中的汞元素(Hg)含量的分布特点进行了分析,得到异常值出现的原因,并提出纠正和预防措施.结果表明,成都市城区内汞元素的产生过程是基本稳定的,总体上处于统计控制状态.
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