基于PMF模型解析安徽省铜陵市某冶炼厂周边土壤重金属来源
ANALYSIS OF HEAVY METAL POLLUTION SOURCES IN SOIL AROUND A SMELTER IN TONGLING CITY,ANHUI PROVINCE BASED ON PMF MODEL
单士锋 1罗传华 1丁丹 1李伟波 2余敏2
作者信息
- 1. 安徽省地质矿产勘查局 321 地质队,铜陵 244000;安徽省一般工业固废处置与资源化利用工程研究中心,铜陵 244000
- 2. 安徽省地质矿产勘查局 321 地质队,铜陵 244000
- 折叠
摘要
土壤重金属污染对公众健康、土地资源环境安全形成巨大冲击,有色金属矿业城市土壤重金属具有高地质背景,采、选、冶矿业活动导致土壤重金属高度累积富集,区分地质成因与矿业活动成因的土壤重金属贡献率是必要的.本研究以安徽省铜陵市某冶炼厂周边土壤为研究对象,综合主成分分析与正定矩阵因子模型(PMF)分析方法,开展矿业废弃地土壤重金属污染的源识别与源解析.结果表明,该区土壤重金属累积主要受矿产冶炼源、地质成因源、化工生产源,其相对贡献率分别为 25.3%、45.3%和 29.4%.矿产生产活动对本区土壤重金属富集累积贡献率最大,地质背景源对重金属含量贡献不容忽视,对于污染土壤的管控和修复治理具有重要意义.
Abstract
Soil heavy metal pollution has a great impact on public health,land resources and environmental security.The high geological background and the activities of mining,Mining,mining and mining activities lead to high accumulation of heavy metals in soil.It is necessary to distinguish the contribution rate of soil heavy metals caused by geological and mining activities.In this study,the soil samples around a smelter in Tongling City,Anhui Province were collected and researched.Integrated principal component analysis and positive definite matrix factor model(PMF)analysis method,Source identification and source analysis of heavy metal pollution in abandoned mining land were carried out.The results showed that the soil heavy metal accumulation in this area was mainly affected by mineral smelting source,geological origin source and chemical production source,and their relative contribution rates were 25.3%,45.3% and 29.4%respectively.The most significant affecting factor for the contribution rate of the soil heavy metal accumulation in this area is mineral production activities..The contribution of geological background sources to the content of heavy metals can not be ignored,which is of great significance for the control and remediation of contaminated soil.
关键词
有色金属冶炼/重金属/PMF模型/源解析/地质背景源Key words
nonferrous metal smelting/heavy metals/PMF model/source apportionment/geological background source引用本文复制引用
出版年
2024
NETL
NSTL
万方数据