Magnetic and microscopic characterization of anthropogenically produced magnetic particles: a proxy for environmental pollution

Maity, R.; Venkateshwarlu, M.; Mondal, Supriya; Kapawar, M.R.; Gain, Debesh; Paul, Pritam

doi:10.1007/s13762-020-02902-x

Cited by 16 publications

(6 citation statements)

References 61 publications

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“…Here, the values of 𝜒LF, SIRM and 𝜒ARM in the roadside dust were much higher than those in the topsoil (Table 1). Similar magnetic signatures of street dust and topsoil have been recorded in Beijing, China (Zhang and Zhang, 2008), Ostrava, Czechia (Švédová et al, 2020) and West Bengal, India (Maity et al, 2020) and re ect the anthropogenic contribution of magnetic phases in the iron-containing minerals. A positive correlation with 𝜒LF and SIRM (Fig.…”

Section: The Enhanced Magnetic Particles In Surface Roadside Dustsupporting

confidence: 73%

“…3c-d). Atmospheric particulates in pollution (Liu et al, 2019;Wang et al, 2019c), road-deposited sediments (Aguilera et al, 2020;Maity et al, 2020), street dusts (Wang et al, 2011;Wang, 2013;Zhu et al, 2013;Li et al, 2014;Wang et al, 2019b) and dust-loaded leaves (Cao et al, 2015) of low 𝜒fd% have been recorded in other metropolitan sites. Here, χfd% was signi cantly lower in surface roadside dust than in park lawn top-soil and suggested the main contributions of the magnetic component of surface roadside dust were exogenous magnetic phases.…”

Section: The Enhanced Magnetic Particles In Surface Roadside Dustmentioning

confidence: 99%

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Traffic-related magnetic pollution in urban dust from the Xiamen Island, China

Yang

Hong

et al. 2021

Environ Chem Lett

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Sources of magnetic phases in urban dust include tra c-related activities, industrial products and detrital minerals.Exposure to magnetic phases in urban dust co-associated with trace metals is associated with respiratory ailments in sensitive organisms. Here, we collected samples of surface roadside dust and topsoil from Xiamen island, Fujian, China and then magnetic properties were determined using rock-magnetic methods. Magnetic particle concentrations in surface roadside dust was found to be signi cantly high compared with magnetic content in topsoil using magnetic susceptibility (𝜒LF), saturation isothermal remanent magnetization (SIRM) and susceptibility of anhysteretic remanent magnetization (𝜒ARM). Roadside dusts had much lower percent frequency-dependent susceptibility (1.83 ± 0.12%) than topsoil (2.96 ± 0.14%). Given the 𝜒ARM/SIRM vs 𝜒fd% and rst-order reversal curves, most of the magnetic particles in roadside dust were large than in topsoil. Variable temperature dependence of magnetization, isothermal remanent magnetization decomposition spectra and rst-order reversal curves suggested the enhancement of dust 𝜒LF, SIRM and 𝜒ARM were related to the exogenous pseudo-single-domain magnetite-like materials. This study provides a better understanding of magnetic ageing of dust particles in coastal cities. These results will be useful in optimizing environmental policies aimed at regulating magnetic dust particles pollution in coastal cities.

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Section: The Enhanced Magnetic Particles In Surface Roadside Dustsupporting

confidence: 73%

Section: The Enhanced Magnetic Particles In Surface Roadside Dustmentioning

confidence: 99%

Traffic-related magnetic pollution in urban dust from the Xiamen Island, China

Yang

Hong

et al. 2021

Environ Chem Lett

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“…Here, the values of LF, SIRM and ARM in the roadside dust were much higher than those in the topsoil (Table 1). Similar magnetic signatures of street dust and topsoil have been recorded in Beijing, China (Zhang and Zhang, 2008), Ostrava, Czechia (Švédová et al, 2020) and West Bengal, India (Maity et al, 2020) and re ect the anthropogenic contribution of magnetic phases in the iron-containing minerals. A positive correlation with LF and SIRM (Fig.…”

Section: The Enhanced Magnetic Particles In Surface Roadside Dustsupporting

confidence: 73%

“…3c-d). Atmospheric particulates in pollution (Liu et al, 2019;Wang et al, 2019c), road-deposited sediments (Aguilera et al, 2020;Maity et al, 2020), street dusts (Wang et al, 2011;Wang, 2013;Zhu et al, 2013;Li et al, 2014;Wang et al, 2019b) and dust-loaded leaves (Cao et al, 2015) of low fd% have been recorded in other metropolitan sites. Here, χfd% was signi cantly lower in surface roadside dust than in park lawn top-soil and suggested the main contributions of the magnetic component of surface roadside dust were exogenous magnetic phases.…”

Section: The Enhanced Magnetic Particles In Surface Roadside Dustmentioning

confidence: 99%

Traffic-related activities driven dust-bound magnetic pollution in urban road-system: Case study of Xiamen island, China

Yang¹,

Wu²,

Hong³

et al. 2021

Preprint

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Sources of magnetic phases in urban dust include traffic-related activities, industrial products and detrital minerals. Exposure to magnetic phases in urban dust co-associated with trace metals is associated with respiratory ailments in sensitive organisms. Here, we collected samples of surface roadside dust and topsoil from Xiamen island, Fujian, China and then magnetic properties were determined using rock-magnetic methods. Magnetic particle concentrations in surface roadside dust was found to be significantly high compared with magnetic content in topsoil using magnetic susceptibility (𝜒LF), saturation isothermal remanent magnetization (SIRM) and susceptibility of anhysteretic remanent magnetization (𝜒ARM). Roadside dusts had much lower percent frequency-dependent susceptibility (1.83 ± 0.12%) than topsoil (2.96 ± 0.14%). Given the 𝜒ARM/SIRM vs 𝜒fd% and first-order reversal curves, most of the magnetic particles in roadside dust were large than in topsoil. Variable temperature dependence of magnetization, isothermal remanent magnetization decomposition spectra and first-order reversal curves suggested the enhancement of dust 𝜒LF, SIRM and 𝜒ARM were related to the exogenous pseudo-single-domain magnetite-like materials. This study provides a better understanding of magnetic ageing of dust particles in coastal cities. These results will be useful in optimizing environmental policies aimed at regulating magnetic dust particles pollution in coastal cities.

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“…The biggest influence on the average content of the elements in the whole fly ash and the whole slag has a group of particles of the greatest yield and, simultaneously, relatively high content of the elements, that is mainly the <0.05 mm nonmagnetic particles of the fly ash and the nonmagnetic fraction of the slag. The aforementioned forms of the fly ash and the slag particles supplement the vast range of residue forms remaining after combusting the feed coal with trace elements, rare elements and radioactive elements, already presented by many authors (e.g., [21,25,28,109,[139][140][141][142][143][144][145][146]). The distribution of the elements in the fly ash and the slag probably results from the mode of occurrence of the elements in the organic and mineral matter of the feed coal.…”

Section: Distribution and Mode Of Occurrence Of The Elements In Coal And Combustion Residuesmentioning

confidence: 99%

Distribution and Mode of Occurrence of Co, Ni, Cu, Zn, As, Ag, Cd, Sb, Pb in the Feed Coal, Fly Ash, Slag, in the Topsoil and in the Roots of Trees and Undergrowth Downwind of Three Power Stations in Poland

Parzentny

Róg

2021

Minerals

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It is supposed that the determination of the content and the mode of occurrence of ecotoxic elements (EE) in feed coal play the most significant role in forecasting distribution of EE in the soil and plants in the vicinity of power stations. Hence, the aim of the work was to analyze the properties of the feed coal, the combustion residues, and the topsoil which are reached by EE together with dust from power stations. The mineral and organic phases, which are the main hosts of EE, were identified by microscopy, X-ray powder diffraction, inductively coupled plasma atomic emission spectrometry, and scanning electron microscope with an energy dispersive X-ray methods. The highest content of elements was observed in the Oi and Oe subhorizons of the topsoil. Their hosts are various types of microspheres and char, emitted by power stations. In the areas of long-term industrial activity, there are also sharp-edged grains of magnetite emitted in the past by zinc, lead, and ironworks. The enrichment of the topsoil with these elements resulted in the increase in the content of EE, by between 0.2 times for Co; and 41.0 times for Cd in the roots of Scots pine, common oak and undergrowth, especially in the rhizodermis and the primary cortex and, more seldom, in the axle roller and cortex cells.

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Magnetic and microscopic characterization of anthropogenically produced magnetic particles: a proxy for environmental pollution

Cited by 16 publications

References 61 publications

Traffic-related magnetic pollution in urban dust from the Xiamen Island, China

Traffic-related magnetic pollution in urban dust from the Xiamen Island, China

Traffic-related activities driven dust-bound magnetic pollution in urban road-system: Case study of Xiamen island, China

Distribution and Mode of Occurrence of Co, Ni, Cu, Zn, As, Ag, Cd, Sb, Pb in the Feed Coal, Fly Ash, Slag, in the Topsoil and in the Roots of Trees and Undergrowth Downwind of Three Power Stations in Poland

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