潜水含水层重金属污染指数综合应用及金属健康风险评价——以阿尔及利亚Oued Souf河谷为例

IF 3.1 Q2 WATER RESOURCES

Hydrology Pub Date : 2023-10-15 DOI:10.3390/hydrology10100201

Ayoub Barkat, Foued Bouaicha, Sabrina Ziad, Tamás Mester, Zsófi Sajtos, Dániel Balla, Islam Makhloufi, György Szabó

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引用次数: 0

摘要

本文首次开展了乌德苏夫河谷深层地下水重金属污染水平、空间格局识别、人体健康和环境健康风险评价等方面的研究。应用的方法包括重金属污染指数、逆距离加权和通过对(14)口监测井采集的样本的饮水进行人体健康风险评估。潜水含水层的污染趋势为Al >B在老的在Mn祝辞菲比;Pb祝辞倪祝辞Cr祝辞英航在铜比;锌。同样，富集趋势为Al >B在老的在Mn祝辞倪祝辞Pb祝辞Cr祝辞英航在铜比;锌。生态上，除S13井和S14井具有较高的Pb生态风险外，其余金属元素的潜在生态风险均较低。根据应用的分组方法，第一组样品的重金属浓度较第二组低，因此污染风险较低。这使得含有第二组样本的地区在重金属方面更加脆弱，这可能影响到城市，城市前，甚至农业地区。所有样本(100%)都表明儿童可能存在潜在的健康风险。虽然6个样本显示非癌症毒性风险被认为很低，但其余样本的危害指数(HI)值很高，表明成年人可能出现健康风险。建成的垂直排水系统是浅层地下水含水层污染水平的支持者和加速器。这是由于它对不同污染物渗透到这个含水层系统的贡献，这取决于水在排水系统中的停留时间，这似乎很长。

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The Integrated Use of Heavy-Metal Pollution Indices and the Assessment of Metallic Health Risks in the Phreatic Groundwater Aquifer—The Case of the Oued Souf Valley in Algeria

In this research, contamination levels and the spatial pattern identification, as well as human and environmental health risk assessments of the heavy metals in the phreatic groundwater aquifer of the Oued Souf Valley were investigated for the first time. The applied methodology comprised a combination of heavy-metal pollution indices, inverse distance weighting, and human health risk assessment through water ingestion on samples collected from (14) monitoring wells. The contamination trend in the phreatic aquifer showed Al > B > Sr > Mn > Fe > Pb > Ni > Cr > Ba > Cu > Zn. Similarly, the enrichment trend was Al > B > Sr > Mn > Ni > Pb > Cr > Ba > Cu > Zn. Ecologically, most of the analyzed metals reflected a low potential ecological risk, except for two wells, S13 and S14, which represented a considerable and high ecological risk in terms of Pb. According to the applied grouping method, the samples in the first group indicated a lower risk of contamination in terms of heavy metals due to their lower concentration compared to the second group. This makes the area containing the second group’s samples more vulnerable in terms of heavy metals, which could affect urban, preurban, and even agricultural areas. All of the samples (100%) indicated the possibility of potential health risks in the case of children. While six samples showed that the non-cancer toxicity risk is considered low, the rest of the samples had high Hazard Index (HI) values, indicating the possibility of health risks occurring in the case of adults. The constructed vertical drainage system is acting as a supporter and accelerator of the pollution levels in the shallow groundwater aquifer. This is due to its contribution to the penetration of different pollutants into this aquifer system, depending on the residence time of the water, which appears to be long within the drainage system.

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来源期刊

Hydrology Earth and Planetary Sciences-Earth-Surface Processes

CiteScore

4.90

自引率

21.90%

发文量

192

审稿时长

6 weeks

期刊介绍： Journal of Hydrology publishes original research papers and comprehensive reviews in all the subfields of the hydrological sciences, including water based management and policy issues that impact on economics and society. These comprise, but are not limited to the physical, chemical, biogeochemical, stochastic and systems aspects of surface and groundwater hydrology, hydrometeorology, hydrogeology and hydrogeophysics. Relevant topics incorporating the insights and methodologies of disciplines such as climatology, water resource systems, ecohydrology, geomorphology, soil science, instrumentation and remote sensing, data and information sciences, civil and environmental engineering are within scope. Social science perspectives on hydrological problems such as resource and ecological economics, sociology, psychology and behavioural science, management and policy analysis are also invited. Multi-and interdisciplinary analyses of hydrological problems are within scope. The science published in the Journal of Hydrology is relevant to catchment scales rather than exclusively to a local scale or site. Studies focused on urban hydrological issues are included.