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Minerals
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Environmental Magnetism and Its Implication for Heavy Metal Pollution
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Environmental Magnetism and Its Implication for Heavy Metal Pollution

A special issue of Minerals (ISSN 2075-163X). This special issue belongs to the section "Environmental Mineralogy and Biogeochemistry".

Deadline for manuscript submissions: closed (31 August 2022) | Viewed by 7635

Special Issue Editor

Dr. Chunxia Zhang

E-Mail Website
Guest Editor
Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China
Interests: environmental magnetism; clay minerals

Special Issue Information

Dear Colleagues,

The heavy metal pollution of ecosystems is becoming a growing global problem as the world’s population increases, with urbanization and industrialization expanding. Various anthropogenic activities, including vehicular traffic, industrial plants, power generation facilities, residential fossil fuel burning, construction and demolition activities, etc., could be contributing to heavy metal pollution in ecosystems, its levels in the environment monitored using a number of methods, including geochemical, mineralogical and microstructural practices. The relationship between magnetic parameters and heavy metals has been investigated on the proxy assumption that sources of magnetic particles and heavy metals are genetically related, but chemical methods are relatively time-consuming and expensive, and, therefore, the application of magnetic methods can deliver useful information for a better selection of sampling sites and, thus, more efficient chemical mapping. Environmental magnetic methods have been widely applied as proxy indicators of environmental pollution because they are simple, rapid and have a low-cost and non-destructive characteristics. This Special Issue invites the latest applications of environmental magnetic methods in the detecting and monitoring of heavy metal pollution in the environment, including the atmosphere, water, soil and sediments, etc., also welcoming and encouraging submissions dealing with the relationship between magnetic minerals and heavy metals.

Dr. Chunxia Zhang
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Minerals is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • environmental magnetism
  • heavy metals
  • anthropogenic activities
  • particulate matter
  • street dust
  • soil
  • sediment

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Published Papers (3 papers)

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Research

14 pages, 2648 KiB  
Article
Environmental Magnetic Characteristics and Heavy Metal Pollution Assessment of Sediments in the Le’an River, China
by Shaowei Rong, Jin Wu, Jing Liu, Qun Li, Chunping Ren and Xiaoyuan Cao
Minerals 2023, 13(2), 145; https://doi.org/10.3390/min13020145 - 18 Jan 2023
Cited by 8 | Viewed by 2453
Abstract
Environmental magnetism parameters have become a useful tool in addressing environmental issues. Due to the rapid, sensitive, economical and non-destructive characteristics of environmental magnetism, the present contribution focuses on magnetism parameters as proxy for heavy metal pollution, especially from their relationship with contents [...] Read more.
Environmental magnetism parameters have become a useful tool in addressing environmental issues. Due to the rapid, sensitive, economical and non-destructive characteristics of environmental magnetism, the present contribution focuses on magnetism parameters as proxy for heavy metal pollution, especially from their relationship with contents of heavy metal. We evaluated heavy metals pollution and examined environmental magnetism in the Dexing section of the Le’an River. The pollution load index (PLI) of Cr, Pb, As, Cu and Zn, as well as the concentration of other heavy metals, were analyzed, and the magnetic indexes of various sediments were analyzed. The results showed that the concentrations of all heavy metals far exceeded the local background values, and that the average contamination factor of Cu was as high as 22.88, making it the element of most serious contamination. The problem of heavy metal pollution near the mine is very serious. The content of magnetic minerals in sediments of Le’an River is relatively high and the composition of magnetic minerals is relatively stable. The stable-single domin (SSD) content is high at S1 and S10, indicating that ferromagnetic mineral content is relatively rich here, which dominates the magnetic characteristics of the sample. In general, it was found that environmental magnetism indicators did not exist in the Dexing section of the Le’an River that could clearly indicate the concentration of heavy metal pollution. Only a few heavy metals can be effectively indicated by magnetic parameters. IRM-20mT and S-ratio can be used as indicators of Cr, Pb, As, Cu and Zn, but they are not accurate. The correlation between Sr and magnetic indexes IRM200mT, IRM300mT, SIRM, IRM-300mT and HIRM is significant, which can be used as an indicator of Sr concentration. IRM20mT can also be used as an indicator of Hg concentration. Full article
(This article belongs to the Special Issue Environmental Magnetism and Its Implication for Heavy Metal Pollution)
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13 pages, 2466 KiB  
Article
Multivariate Analysis of Magnetic Parameters and Trace Metals in Atmospheric Dustfall and Its Environmental Implications in Northern China
by Qingqing Qiao, John D. A. Piper and Zhuangzhuang Lv
Minerals 2022, 12(12), 1598; https://doi.org/10.3390/min12121598 - 12 Dec 2022
Cited by 1 | Viewed by 1348
Abstract
Magnetic measurement was combined with geochemical analysis to investigate the trace metal pollution of atmospheric dustfall from rural areas of Inner Mongolia and urban regions of Hebei province in northern China. It is found that the type of magnetic mineral within atmospheric dustfall [...] Read more.
Magnetic measurement was combined with geochemical analysis to investigate the trace metal pollution of atmospheric dustfall from rural areas of Inner Mongolia and urban regions of Hebei province in northern China. It is found that the type of magnetic mineral within atmospheric dustfall samples in Inner Mongolia is similar to those found in Hebei province, but the atmospheric dustfall samples in Inner Mongolia have lower magnetic mineral concentrations and finer particles. Linear multiple regression analyses show that the relationship between magnetic parameters and trace metals is found to vary between the contrasting rural and urban areas, and is controlled by the different source magnetic minerals. The concentration- and type-dependent magnetic properties of the particles correlated strongly with the concentrations of trace metals derived from natural processes, and the grain size-dependent magnetic parameters correlated negatively and significantly with the concentrations of trace metals derived from anthropogenic activities. Full article
(This article belongs to the Special Issue Environmental Magnetism and Its Implication for Heavy Metal Pollution)
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14 pages, 7556 KiB  
Article
Re-Visiting the Quantification of Hematite by Diffuse Reflectance Spectroscopy
by Wei Cao, Zhaoxia Jiang, Congcong Gai, Vidal Barrón, José Torrent, Yi Zhong and Qingsong Liu
Minerals 2022, 12(7), 872; https://doi.org/10.3390/min12070872 - 11 Jul 2022
Cited by 10 | Viewed by 2845
Abstract
Hematite concentration is an important climatic proxy for environmental (climatic) studies of soils and sediments. However, the accurate quantification of naturally occurring hematite has always been a difficult question, especially for those areas with lower hematite concentrations. Diffuse reflectance spectroscopy (DRS) is an [...] Read more.
Hematite concentration is an important climatic proxy for environmental (climatic) studies of soils and sediments. However, the accurate quantification of naturally occurring hematite has always been a difficult question, especially for those areas with lower hematite concentrations. Diffuse reflectance spectroscopy (DRS) is an effective method for hematite identification and quantification with lower detection limits. In this study, we synthesized a set of samples with well-determined concentrations to explore the exact detectable range of hematite and propose the most effective transfer function between the DRS proxy and hematite concentration. In addition, natural sediments from Inland Asia and the Western Pacific Ocean were used to further test the feasibility of the new transfer function. Results show that the lowest DRS detection limit for hematite could reach ~0.00078%, but is affected by the natural matrix. We also find that the second derivative of the Kubelka–Munk (K–M) function is monotonically correlated with the hematite concentration (0.00078%–100%), but ambiguities exist for the first derivative. Therefore, the second derivative of the K–M function is highly suggested for the hematite quantification, especially when concentration exhibits a wide range of variations. This study provides important references for the application of hematite proxy and promotes the popularization and development of the DRS method. Full article
(This article belongs to the Special Issue Environmental Magnetism and Its Implication for Heavy Metal Pollution)
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