[1]邢润华,吴正,杜国强.安徽省宣州区土壤重金属污染风险评估及来源分析[J].华东地质,2022,43(03):336-344.[doi:10.16788/j.hddz.32-1865/P.2022.03.009]
 XING Runhua,WU Zheng,DU Guoqiang.Risk assessment and source analysis of soil heavy metal pollution in Xuanzhou District, Anhui Province[J].East China Geology,2022,43(03):336-344.[doi:10.16788/j.hddz.32-1865/P.2022.03.009]
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安徽省宣州区土壤重金属污染风险评估及来源分析()
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《华东地质》[ISSN:2096-1871/CN:32-1865/P]

卷:
43
期数:
2022年03期
页码:
336-344
栏目:
生态地质
出版日期:
2022-09-24

文章信息/Info

Title:
Risk assessment and source analysis of soil heavy metal pollution in Xuanzhou District, Anhui Province
作者:
邢润华 吴正 杜国强
安徽省地质调查院(安徽省地质科学研究所), 安徽 合肥 230001
Author(s):
XING Runhua WU Zheng DU Guoqiang
Geological Survey of Anhui Province (Anhui Institute of Geological Sciences), Hefei 230001, Anhui, China
关键词:
土壤重金属污染风险评估来源分析安徽省宣州区
Keywords:
soilheavy metalspollution risk assessmentsource analysisXuanzhou District of Anhui Province
分类号:
X53
DOI:
10.16788/j.hddz.32-1865/P.2022.03.009
摘要:
利用1∶25万土地质量地球化学调查数据,对安徽省宣州区土壤重金属污染风险进行评估,并开展土壤重金属来源解析。结果表明:研究区土壤重金属污染风险总体较低,低污染风险的土壤占74.64%;污染风险可控的土壤占25.04%,主要影响指标为Cd、 As以及 Cu、Hg、Pb、Zn;污染风险较高的土壤占0.32%,主要影响指标为Cd。重金属形态分析结果显示:土壤Cd、Pb生态风险高于As、Hg,其中As、Hg残渣态占比最高,Cd离子交换态占比最高,Pb残渣态和铁锰氧化物结合态占比较高。通过表层土壤、深层土壤元素含量相关性分析,推断区内土壤重金属主要来源于成土母质,局部地区土壤(Hg、Cd、Cu、Zn、As、Pb等高含量)主要受矿山开采、畜牧业养殖等人为活动影响。
Abstract:
Based on 1∶250 000 geochemical survey data of land quality in Xuancheng City of Anhui Province, the authors assessed the risk of soil contamination by heavy metals and analyzed the source of heavy metals. The overall risk of heavy metal contamination was relatively low: the soils with low and controllable risks of contamination account for 74.64% and 25.04% respectively, and their major concern contaminants are Cd and As, followed by Cu, Hg, Pb and Zn. The soils with higher risk of contamination account for 0.32%, and the major concern is Cd. Form analysis of the heavy metals indicated that the ecological risk of Cd and Pb was higher than that of As and Hg in the soils, and As and Hg were the highest in residual form, Cd is the highest in the form of ion exchange, and Pb is higher in residual form and Fe-Mn oxide. Through the correlation analysis between the contents of a heavy metal in the top soil and that in deep soil, it is suggested that the heavy metals in the soils mainly came from the parent materials of the soils, and the high contents of Hg, Cd, Cu, Zn, As and Pb in some local areas mainly migrated from mining, animal husbandry and other human activities.

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备注/Memo

备注/Memo:
收稿日期:2021-10-22;改回日期:2022-3-16。
基金项目:中国地质调查局"淮河皖江经济区土地质量地球化学调查(编号:DD20160322)"项目资助。
作者简介:邢润华,1973年生,女,副高级工程师,大学本科,主要从事生态地球化学调查及地质矿产勘查工作。Email:785146117@qq.com。
更新日期/Last Update: 1900-01-01