冶炼场地土壤中钨空间分布特征及风险评价

李华翔; 赵修军; 刘应华; 罗志吉

doi:10.13205/j.hjgc.202201021

冶炼场地土壤中钨空间分布特征及风险评价

doi: 10.13205/j.hjgc.202201021

河南省航空物探遥感中心, 河南南阳 450000

基金项目:

河南省地矿局科研项目(豫地环[2021]2号)

国家重点研发计划重点专项(2019YFC1803601)

详细信息

作者简介:
李华翔(1991-),男,硕士,工程师,主要研究方向为土壤重金属修复。huaxianglicug@163.com

通讯作者:
赵修军(1981-),男,高级工程师。zxjwty@126.com

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- 文章访问数: 193
- HTML全文浏览量: 20
- PDF下载量: 17
- 被引次数: 0
出版历程
- 收稿日期: 2021-05-13
- 网络出版日期: 2022-03-30
- 刊出日期: 2022-03-30

SPATIAL DISTRIBUTION AND RISK ASSESSMENT OF TUNGSTEN POLLUTION OF SOIL IN A SMELTING SITE

Aero Geophysical Survey and Remote Sensing Center of Henan Province, Nanyang 450000, China

摘要

摘要: 针对土壤中新兴污染物钨(W)关注度较低的现状,以河南洛阳某钨冶炼场地的土壤为研究对象,运用空间插值、单因子指数、内梅罗指数、潜在生态风险指数等方法,探讨了土壤中钨空间分布特征及潜在生态风险。结果表明:样点S10、S05、S06区域土壤钨含量在整体水平上较其他功能区高;Ⅰ、Ⅱ土壤层钨富集程度整体上远高于Ⅲ、Ⅳ层;随着剖面土壤深度增加,S01、S02、S04、S08、S10、S12区域钨呈深层富集,S05、S06、S07、S11呈表层富集,S03、S09呈中层富集;除S01、S12区域部分表中层土壤钨P_i值为轻微、轻度污染外,各区域土壤钨P_i值均为中度以上污染水平;各层土壤钨的综合P_N值表明场地各土层整体上均受到钨的重度污染;除S05区域表层土壤钨E_i值为中度生态风险以外,各区域土壤钨E_i值均为轻度生态风险;各层土壤钨的综合RI值表明,Ⅰ、Ⅱ层为中度生态风险,Ⅲ、Ⅳ层为轻度生态风险。
- 冶炼场地 /
- 土壤 /
- 钨 /
- 空间分布 /
- 生态风险
Abstract: Due to the less attention to the emerging pollutant tungsten in soil, this study focused on the soil of a tungsten smelting site in Luoyang, Henan province, and used the methods of spatial interpolation, single factor index, Nemerow index and potential ecological risk index to emphatically discuss the spatial distribution characteristics and potential ecological risk of tungsten in soil. The results showed that the soil tungsten contents in S10, S05 and S06 were higher than that in other functional areas; the enrichment degree of tungsten in soil layers Ⅰ and Ⅱ was much higher than that in soil layers Ⅲ and IV; with the increasing of soil depth, the areas of S01, S02, S04, S08, S10 and S12 reflected deep enriching tungsten, while S05, S06, S07 and S11 showed an surface enriching, and S03 and S09 showed an middle enriching; except for S01 and S12, the P_i of tungsten in surface and middle layer soil were minor and mild, the P_i of tungsten in the other areas of the site reached medium level; the tungsten composite indexes(P_N) of each soil layer showed that the whole soil layer was heavily polluted by tungsten; except for the surface soil tungsten in S05 area, the soil tungsten(E_i) in the other areas of the site was with a mild ecological risk; the comprehensive potential ecological risk(RI) of soil tungsten in each layer showed that the ecological risks of soil tungsten in Ⅰ and Ⅱ layers were moderate, and those in Ⅲ and IV layers were mild.
- smelting site /
- soil /
- tungsten /
- spatial distribution /
- ecological risk

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