土壤磁感应强度与重金属和物理化学特征的相关性

IF 1 Q4 ENGINEERING, ENVIRONMENTAL

Journal of Environmental Engineering and Science Pub Date : 2024-02-21 DOI:10.1680/jenes.24.00004

Farnaz Ghobadi, Shahrzad Khoramnejadian, Sadredin Alipour

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引用次数: 0

摘要

本研究旨在确定磁感应强度及其与选定重金属（包括砷、铬、镉和铅）浓度的相关性，以及从伊朗德黑兰市第 5 区采集的表层土样本的理化性质。样本从 13 个站点（0 至 10 厘米深）采集，并通过全球定位系统记录了采样点的位置，然后分析了样本的理化性质、重金属浓度（通过原子吸收光谱法）和低频原位磁感应强度（χlf，通过 Bartington MS2 双频传感器）。结果显示，3 号站（Azadi 汽车站）和 11 号站（Jannatabad 社区）的最高和最低 χlf 值分别为 34.1 和 16.3（10-8 m3kg-1）。χlf与铅和铬的浓度之间存在明显的相关性（P<0.05）。此外，χlf 与研究区域的土壤有机质之间存在显著的正相关关系（P<0.01）。根据研究结果，磁感应强度测量可用于快速评估土壤重金属污染水平，也可用于监测土壤有机质的变化。

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Correlation of soil magnetic susceptibility with heavy metals and physicochemical profile

The present study was conducted to determine magnetic susceptibility and its correlation with concentration of selected heavy metals including arsenic, chromium, cadmium and lead as well as physicochemical properties of topsoil samples collected from a District 5 of Tehran Municipality, Iran. The specimens were collected from 13 stations (0 to 10 cm depth) along with recording the location of the sampling points through the Global Positioning System, and then were analyzed for physicochemical properties, heavy metal concentration (by Atomic absorption spectrometry) and in-situ magnetic susceptibility at low frequency (χlf, by Bartington MS2 Dual Frequency Sensor). According to the results, the highest and lowest χlf values were 34.1 and 16.3 (10−8 m3kg−1) at Stations 3 (Azadi Bus Station) and 11 (Jannatabad neighborhood), respectively. A significant correlation was found between χlf and the concentration of lead and chromium (P<0.05). Moreover, there was a positive and significant correlation between χlf and the soil organic matter in the study area (P<0.01). Based on the research findings, the magnetic susceptibility measure can be used to quickly evaluate the level of soil contamination with heavy metals and also to monitor the changes of soil organic matter.

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来源期刊

Journal of Environmental Engineering and Science 环境科学-工程：环境

CiteScore

1.60

自引率

0.00%

发文量

审稿时长

12 months

期刊介绍： Journal of Environmental Engineering and Science is an international, peer-reviewed publication providing a forum for the dissemination of environmental research, encouraging interdisciplinary research collaboration to address environmental problems. It addresses all aspects of environmental engineering and applied environmental science, with the exception of noise, radiation and light.