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| 开封市周边地区地表灰尘主要金属元素背景值研究及应用 |
| Research on and Application of the Background Values of Dominant Metals in Surface Dust in the Vicinity of Kaifeng City, China |
| 投稿时间：2013-03-08 修订日期：2013-10-23 |
| DOI： |
| 中文关键词: 开封市;地表灰尘;金属元素;背景值 |
| 英文关键词: Kaifeng City;surface dust;metal element;background concentration |
| 基金项目:教育部高等学校博士学科点专项科研基金(No.20104103110001);国家自然科学基金(No.41171409)。 |
| 作者 | 单位 | E-mail | | 刘德新1, 马建华1, 董运武2, 陈星1 | 1. 河南大学资源与环境研究所, 河南开封 475004
2. 嵩县环保局, 河南嵩县 471400 | mjh@henu.edu.cn |
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| 中文摘要: |
| 在开封市周边地区采集96个地表灰尘样品,按照土壤背景值研究方法,探讨了灰尘K、Na、Ca、Mg、Fe、Mn、Al和Ti等主要金属元素的背景值,并与研究区表土元素背景值及开封市区灰尘元素平均含量进行了比较。结果表明:地表灰尘Al、Ti、K、Na、Ca、Mg、Fe和Mn的背景值分别是70.67、4.85、19.56、16.42、23.37、9.21、20.83和0.74 g/kg;与研究区表土元素背景值相比,灰尘K、Mn背景值分别低3.69%和6.33%,而Mg、Na、Fe、Al、Ca和Ti则分别高14.98%、10.42%、10.10%、9.36%、8.40%和4.30%;开封市区灰尘Mn、Ti、Fe、Na、Al和Mg含量分别比其背景值低69.11%、16.67%、14.92%、9.09%、6.63%和0.84%,而Ca和K分别比其背景值高8.94%和4.92%;灰尘粒径大小、矿物组成和人类活动是影响主要金属元素背景值的重要因素。 |
| 英文摘要: |
| About 96 surface dust samples were collected from the vicinity of Kaifeng. According to the research methods of the soil background values, we discussed the concentrations of K, Na, Ca, Mg, Fe, Mn, Ti and Al, and compared the topsoil background values of the study area with the average content of urban dust in Kaifeng City as well. The revised background concentrations of metals in the surface dust near Kaifeng were proposed to be 70.67 g/kg for Al, 4.85 g/kg for Ti, 19.56 g/kg for K, 16.42 g/kg for Na, 23.37 g/kg for Ca, 9.21 g/kg for Mg, 20.83 g/kg for Fe, 0.74 g/kg for Mn. Compared with the concentrations of soil samples from this section, the Mg, Na, Fe, Al, Ca and Ti background concentrations in the present study are about 14.98%, 10.42%, 10.10%, 9.36%, 8.40% and 4.30% higher while the concentrations of K and Mn are about 3.69% and 6.33% lower than the soil background values, respectively. Compared with the concentrations of urban dust in Kaifeng, Ca and K are about 8.94% and 4.92% higher while Mn, Ti, Fe, Na, Al and Mg are 69.11%, 16.67%, 14.92%, 9.09%, 6.63% and 0.84% lower than the background concentrations of the dust, respectively. Dust particle size, mineral composition and human activities are the important factors which affect the background values of main metal elements. |
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