CAJ | 학술논문

研究了冕宁安宁河流域垂向剖面上Cd、 Pb两种重金属元素不同赋存形态，采用BCR （3级4步）提取法分析了重金属的赋存形态，探讨了两种重金属元素的分布特征，简要分析了重金属元素的潜在危害性。研究区牦牛坪稀土矿的开采对重金属元素的分布造成了一定的影响。 Cd、Pb两种重金属元素酸提取态、可还原态所占比例较大，活性较强，当环境条件发生变化时，容易释放出来对环境造成二次污染，具有潜在环境风险，应当引起重视。
연구료면저안저하류역수향부면상Cd、 Pb량충중금속원소불동부존형태，채용BCR （3급4보）제취법분석료중금속적부존형태，탐토료량충중금속원소적분포특정，간요분석료중금속원소적잠재위해성。연구구모우평희토광적개채대중금속원소적분포조성료일정적영향。 Cd、Pb량충중금속원소산제취태、가환원태소점비례교대，활성교강，당배경조건발생변화시，용역석방출래대배경조성이차오염，구유잠재배경풍험，응당인기중시。
The paper studies two kinds of different forms of heavy metal elements Cd and Pb in mianning anning river basin.Using the BCR extraction method to analyze the speciation of heavy metals and discuss the distribution characteristics of two kinds of heavy metal elements and then make a brief analysis of the potential danger of heavy metal elements.Maoniuping REE deposit mining has a certain influence on the distribution of heavy metals.The acid extraction mode and reducible fraction mode of the two kinds of heavy metal elements Cd and Pb not only accounts for a bigger proportion but also have a strong activity.When environmental conditions change, it's easy to get released and cause secondary pollution to environment.The potential environmental risk that they bring should be taken seriously.