Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1007/s10653-019-00434-z |
Environmental and human health risk assessment of potentially toxic elements in soil, sediments, and ore-processing wastes from a mining area of southwestern Tunisia | |
Khelifi, Faten; Melki, Achraf; Hamed, Younes; Adamo, Paola; Caporale, Antonio G. | |
通讯作者 | Caporale, AG (corresponding author), Univ Naples Federico II, Dept Agr Sci, Portici, Italy. |
来源期刊 | ENVIRONMENTAL GEOCHEMISTRY AND HEALTH
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ISSN | 0269-4042 |
EISSN | 1573-2983 |
出版年 | 2020 |
卷号 | 42期号:12页码:4125-4139 |
英文摘要 | The occurrence and bioaccessibility of potentially toxic elements (PTEs) in soils and sediments are investigated by many studies, especially in territories exploited by mining and ore-processing activities, nearby agriculture-driven rural cities. Accordingly, the present study aimed at evaluating the geochemical properties, potential bioavailability, and risks for environment and human health of the most concerning PTEs of study area (Gafsa mining basin, Tunisia) such as Cd, Cr, and Zn in selected soil, sediment, and mining waste samples. The extraction of these solid matrixes by modified EU-BCR sequential extraction revealed that the most easily extractable fractions of each PTE were very low (first 2 steps, < 10%), Cd was mainly associated with the oxidizable phase (likely organic matter), and Cr and Zn were mostly found in residual mineral fraction (likely occluded in non-siliceous mineral phase). The total cumulative concentration of each metal was found to be higher in soil/sediment profiles and ore-processing wastes than in phosphate rocks, indicating a metal enrichment due to mining activities. Theaqua regiaextraction of representative sediment samples revealed that Cd, Cr, and Zn concentrations were higher than non-polluted sediment standards. In contrast, other elements as Cu, Mn, and Pb essentially arose from natural bedrocks. The Unified BARGE method was applied to assess the risk of ingestion by human beings and wild/domestic animals of contaminated sediment particulate prone to wind erosion and air dispersion in the arid conditions of study area. An higher oral bioaccessibility was found for Cd than Zn and Cr, most concerning in acid gastric phase than in sub-neutral intestinal environment. |
英文关键词 | Heavy metals Gafsa mining basin Bioavailability EU-BCR sequential extraction Bioaccessibility Unified BARGE Method (UBM) |
类型 | Article |
语种 | 英语 |
收录类别 | SCI-E |
WOS记录号 | WOS:000541619500001 |
WOS关键词 | SEQUENTIAL EXTRACTION PROCEDURE ; HEAVY-METALS ; CONTAMINATED SOILS ; SOLID SPECIATION ; TRACE-ELEMENTS ; VOLCANIC SOILS ; MINE WASTES ; BIOACCESSIBILITY ; RIVER ; BIOAVAILABILITY |
WOS类目 | Engineering, Environmental ; Environmental Sciences ; Public, Environmental & Occupational Health ; Water Resources |
WOS研究方向 | Engineering ; Environmental Sciences & Ecology ; Public, Environmental & Occupational Health ; Water Resources |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/369268 |
作者单位 | [Khelifi, Faten] Univ Carthage, Dept Earth Sci, Fac Sci Bizerte, Jarzouna 7021, Bizerte, Tunisia; [Khelifi, Faten; Hamed, Younes] Univ Gabes, Fac Sci Gabes, Res Unity Geosyst Georesources & Geoenvironm 3G, Zrig 6072, Gabes, Tunisia; [Khelifi, Faten; Hamed, Younes] Int Assoc Water Resources Southern Mediterranean, Gafsa, Tunisia; [Melki, Achraf] Univ Sfax, Res Lab GEOMODEL, Sfax, Tunisia; [Hamed, Younes] Univ Gafsa, Fac Sci Gafsa, Dept Earth Sci, Gafsa, Tunisia; [Adamo, Paola] Univ Naples Federico II, Interdept Res Ctr Earth Crit Zone Supporting Land, Portici, Italy; [Adamo, Paola; Caporale, Antonio G.] Univ Naples Federico II, Dept Agr Sci, Portici, Italy |
推荐引用方式 GB/T 7714 | Khelifi, Faten,Melki, Achraf,Hamed, Younes,et al. Environmental and human health risk assessment of potentially toxic elements in soil, sediments, and ore-processing wastes from a mining area of southwestern Tunisia[J],2020,42(12):4125-4139. |
APA | Khelifi, Faten,Melki, Achraf,Hamed, Younes,Adamo, Paola,&Caporale, Antonio G..(2020).Environmental and human health risk assessment of potentially toxic elements in soil, sediments, and ore-processing wastes from a mining area of southwestern Tunisia.ENVIRONMENTAL GEOCHEMISTRY AND HEALTH,42(12),4125-4139. |
MLA | Khelifi, Faten,et al."Environmental and human health risk assessment of potentially toxic elements in soil, sediments, and ore-processing wastes from a mining area of southwestern Tunisia".ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 42.12(2020):4125-4139. |
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