The Study of Peri-Urban Soil Contamination in the Kenitra Region, Morocco – Characterization and Assessment Using a Statistical Approach

Yahya El Idrissi, J. Mabrouki, B. Baghdad, Mohammed Alaoui El Belghiti, Mohammed El Azzouzi, Soukaina El Hasini, Abdelali El Mekkaoui, Kenza Kadiri Hassani, El Habib El Azzouzi
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Abstract

The peri-urban solid waste in the Kenitra region is experiencing a significant change in terms of quantity and qual - ity. High concentrations of both inorganic and organic materials are present in these wastes, posing a significant threat of pollution. This research sought to analyze the extent of soil contamination by heavy metals, providing valuable insights to prompt proactive interventions and propose alternative solutions for sustainable waste management. The objective of this work was to study peri-urban soil contamination in the Kenitra region-Morocco. For that purpose, several soil contamination indicators were analyzed, namely: nitrogenous, fertilizer and heavy metals concentration, soil pH, etc. The analyzed soil samples were taken from water from the different points at the levels of the studied region. The analysis shows that the studied soils are polluted with Zn, Mg, Cu, Ni, Cr, Cd, Pb, and other chemical elements. The results obtained suggest a correlation between soil pollution and the concentrations of the measured heavy metals. Furthermore, the analysis shows that heavy metals, contamination is particularly related to the presence of lead, cadmium, and zinc. The zinc contamination in the soil is about 390 mg/kg for a standard of between 0.2 and 2 mg/kg. Lead concentrations are 53 mg/kg for a standard of 0.3 mg/kg. On the basis of Moroccan standards, the soil is contaminated by lead, cadmium, and zinc.
摩洛哥凯尼特拉地区城市周边土壤污染研究--利用统计方法进行特征描述和评估
凯尼特拉地区城郊的固体废物在数量和质量上都发生了重大变化。这些垃圾中含有高浓度的无机物和有机物,构成了严重的污染威胁。这项研究旨在分析土壤受重金属污染的程度,为采取积极干预措施提供有价值的见解,并为可持续废物管理提出替代解决方案。这项工作的目的是研究摩洛哥凯尼特拉地区的城郊土壤污染情况。为此,对几项土壤污染指标进行了分析,即:氮、肥料和重金属浓度、土壤 pH 值等。所分析的土壤样本取自所研究地区各级不同点的水源。分析表明,所研究的土壤受到锌、镁、铜、镍、铬、镉、铅和其他化学元素的污染。结果表明,土壤污染与所测重金属浓度之间存在相关性。此外,分析表明,重金属污染尤其与铅、镉和锌的存在有关。按照 0.2 至 2 毫克/千克的标准,土壤中的锌污染约为 390 毫克/千克。铅浓度为 53 毫克/千克,标准为 0.3 毫克/千克。根据摩洛哥的标准,土壤受到铅、镉和锌的污染。
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