| 徐勇,李得路,张晓团,杨志东,王少飞,贺前阳.钒矿区土壤地球化学特征及重金属生态风险评价[J].矿产勘查,2023,14(8):1504-1516 |
| 钒矿区土壤地球化学特征及重金属生态风险评价 |
| Soil geochemical characteristics and heavy metals ecological risk assessment in vanadium mining area |
| 投稿时间：2022-02-16 修订日期：2022-05-27 |
| DOI：10.20008/j.kckc.202308018 |
| 中文关键词: 重金属 生态风险评估 土壤 钒矿区 |
| 英文关键词: heavy elements ecological risk assessment soil vanadium mine |
| 基金项目:本文受陕西省公益性地质项目（201907）资助。 |
|
| 摘要点击次数: 589 |
| 全文下载次数: 370 |
| 中文摘要: |
| 本文以陕西省商洛市银花河流域中村—银花段钒矿区为研究对象，通过测试表层土壤的pH、有机碳、矿物、主量元素及重金属元素等含量，分析其地球化学特征，并评估该区土壤的健康生态风险等级。研究区土壤整体显示碱性的特征，土壤中碳主要以黏土矿物中有机碳的形式赋存。土壤中主要矿物为白云石，其次为石英、斜长石和黏土矿物。土壤主量元素中SiO2含量最高，Al2O3含量次之，其余元素含量较低。土壤中V、Cr、Ni、Cu和Zn元素含量较高，As、Cd、Pb和Hg元素含量相对较低。综合分析认为土壤中Hg、Cd和As这3种元素均污染明显，其余元素无明显污染特征。潜在生态风险综合指数表明研究区土壤整体为轻微—中等的污染程度，V元素通过口鼻和皮肤摄入的健康风险性极低。 |
| 英文摘要: |
| In this paper， the vanadium mining area in Zhongcuan-Yinhua Section of the Yinhua River Basin in Shangluo City， Shaanxi Province was taken as the research object. The pH， organic carbon， mineral， major element and heavy metal content of the surface soil were tested to analyze its geochemical characteristics， and the health and ecological risk level of the soil in this area was evaluated. The soil in the study area showed alkaline characteristics as a whole， and the carbon in the soil was mainly in the form of organic carbon in clay minerals. The main minerals in the soil are dolomite， followed by quartz， plagioclase and clay minerals. The content of SiO2 is the highest， the content of Al2O3 is the second， and the content of other elements is low. The contents of V， Cr， Ni， Cu and Zn in soil are high， while the contents of As， Cd， Pb and Hg are relatively low. Comprehensive analysis showed that Hg， Cd and As in soil were obviously polluted， and the other elements had no obvious pollution characteristics. The comprehensive index of potential ecological risk showed that the soil in the study area was slightly to moderately polluted， and the health risk of element V ingested through mouth， nose and skin was very low. |
|
查看全文
查看/发表评论 下载PDF阅读器 |
| 关闭 |