摩洛哥Saïs平原地下水水质及重金属污染指数

IF 2.4 Q1 Medicine
Journal of Health and Pollution Pub Date : 2020-05-04 eCollection Date: 2020-06-01 DOI:10.5696/2156-9614-10.26.200603
Said Lotfi, Miloud Chakit, Driss Belghyti
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引用次数: 16

摘要

背景:重金属污染威胁着世界许多地区的地下水资源。各种评价地下水质量的方法已经被用来描述污染源和相关参数。在重金属污染评价中,污染指数的计算是评价水质的有效工具。目的:本研究的目的是利用多变量分析评估摩洛哥Saïs平原的重金属浓度并确定其分布。方法:2018年1月至2019年1月,在Saïs地区12个站点采集144份地下水样品,采用原子吸收分光光度法对重金属(砷、镉、总铬、铅、铜、铁、锰、锌)进行分析。结果:铬是影响2号站水质的主要污染物(0.057 mg/l)和8号站(0.065 mg/l),而7号站(1.4 mg/l)和11号站(0.45 mg/l)的铁含量较高,11号站的铜(2.9 mg/l)和锌(3.39 mg/l)的含量相对于其他重金属含量较高。这些元素的高浓度与人为污染物有关。因子分析表明,地下水化学由两部分控制。本研究结果表明,在一个季节内,一两个站点的铁、铬等有毒金属浓度存在轻微超标现象。Saïs平原地下水重金属污染计算值低于100的指标限值。结论:地下水重金属污染不严重,可饮用。但是,建议在这一领域采取预防措施,例如管理农业投入物的使用和避免在农业中使用废水。竞争利益:作者声明没有完整的经济利益。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Groundwater Quality and Pollution Index for Heavy Metals in Saïs Plain, Morocco.

Groundwater Quality and Pollution Index for Heavy Metals in Saïs Plain, Morocco.

Groundwater Quality and Pollution Index for Heavy Metals in Saïs Plain, Morocco.

Groundwater Quality and Pollution Index for Heavy Metals in Saïs Plain, Morocco.

Background: Heavy metals contamination threatens groundwater resources in many areas around the world. Various methods to evaluate groundwater quality have been used to characterize sources of contamination and associated parameters. For assessment of heavy metals contamination, calculation of pollution indices is an effective tool for assessing water quality.

Objectives: The purpose of the present study was to assess heavy metal concentrations and determine distributions in Saïs plain, Morocco using multivariate analysis.

Methods: A total of 144 groundwater samples were collected from twelve stations in Saïs from January 2018 to January 2019, and were analyzed for heavy metals (arsenic, cadmium, total chromium, lead, copper, iron, manganese and zinc) using atomic absorption spectrophotometry.

Results: Chromium was found to be a major contaminant affecting water quality in Station 2 (0.057 mg/l) and Station 8 (0.065 mg/l), while elevated levels of iron were found in Station 7 (1.4 mg/l) and Station 11 (0.45 mg/l), and elevated levels of copper (2.9 mg/l) and zinc (3.39 mg/l) were found in Station 11, relative to other heavy metals. The high concentrations of these elements are related to anthropogenic pollutants. The factor analysis showed two components controlling groundwater chemistry. The results of the present study demonstrate that the concentrations of toxic metals, like Fe and Cr, are present in slight excess in one or two stations during one season. The calculated heavy metal pollution level for the groundwater of Saïs plain was below the index limit of 100.

Conclusions: The results show that groundwater is not polluted with respect to heavy metals and is acceptable for drinking. However, precautionary measures, such as managing the use of agricultural inputs and avoiding the use of wastewater in agriculture, are recommended in this area.

Competing interests: The authors declare no completing financial interests.

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来源期刊
Journal of Health and Pollution
Journal of Health and Pollution Medicine-Public Health, Environmental and Occupational Health
自引率
0.00%
发文量
0
审稿时长
18 weeks
期刊介绍: The Journal of Health and Pollution (JH&P) was initiated with funding from the European Union and World Bank and continues to be a Platinum Open Access Journal. There are no publication or viewing charges. That is, there are no charges to readers or authors. Upon peer-review and acceptance, all articles are made available online. The high-ranking editorial board is comprised of active members who participate in JH&P submissions and editorial policies. The Journal of Health and Pollution welcomes manuscripts based on original research as well as findings from re-interpretation and examination of existing data. JH&P focuses on point source pollution, related health impacts, environmental control and remediation technology. JH&P also has an interest in ambient and indoor pollution. Pollutants of particular interest include heavy metals, pesticides, radionuclides, dioxins, polychlorinated biphenyls (PCBs), polycyclic aromatic hydrocarbons (PAHs), volatile organic compounds (VOCs), air particulates (PM10 and PM2.5), and other severe and persistent toxins. JH&P emphasizes work relating directly to low and middle-income countries, however relevant work relating to high-income countries will be considered on a case-by-case basis.
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