Identification of magnetic particulates in road dust accumulated on roadside snow using magnetic, geochemical and micro-morphological analyses

Bućko, Michał S.; Magiera, Tadeusz; Johanson, Bo; Petrovský, Eduard; Pesonen, L. J.

doi:10.1016/j.envpol.2011.01.030

Cited by 110 publications

(39 citation statements)

References 53 publications

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“…Consequently, the presence of TMPs in topsoil (mainly in the organic horizon) is considered an indicator for heavy metal soil pollution. This fact was confirmed by many authors (Veneva et al 2004;Klose and Makeschin 2005;Spiteri et al 2005;Blaha et al 2008;Jordanova et al 2008;Lu et al 2008;Magiera et al 2008;Bućko et al 2011). Soil with natural plant cover, particularly forest soil, is often used as a target for magnetic susceptibility studies because it exhibits the stratigraphic sequence of the depositing dusts in undisturbed soil horizons for a long time.…”

Section: Introductionsupporting

confidence: 49%

The influence of the wind direction and plants on the variability of topsoil magnetic susceptibility in industrial and urban areas of southern Poland

2016

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Volume magnetic susceptibility (j) was measured on the soil surface and in the vertical topsoil profile within a 300 km 2 area located in an urban-industrial conurbation. The results were compared to plant species compositions in the forest storeys, elevation above sea level, and terrain geomorphology. The content and mineral composition of the magnetic fraction were determined in the soil horizons. It was found that the extent of the area with enhanced topsoil magnetic susceptibility was similar to the dominant wind direction (south-west). Enhanced j values were observed for the soil at the forest margin on the leeward side of the emitters as well as at sites located on exposed local elevations (C10 m). There were no significant correlations between species composition of the forest stand and soil surface j value (measured both with and without forest litter). Soil covered with deciduous treesmostly ash (Fraxinus excelsior L.)-demonstrated higher j values than soil under coniferous tree species. However, our results suggest that this parameter is not controlled by individual tree species, but rather depends on distance from emission sources, intensity of magnetic particle emission, and meteorological conditions (prevailing wind directions and dynamics).

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Section: Introductionsupporting

confidence: 49%

The influence of the wind direction and plants on the variability of topsoil magnetic susceptibility in industrial and urban areas of southern Poland

2016

Self Cite

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“…Thompson and Oldfield, 1986). Numerous studies have demonstrated that magnetic techniques can be successfully used to monitor anthropogenic or geoanthropogenic pollution from surface soils (Dearing et al, 1996b;4 Jordanova et al, 2003;Qiao et al, 2011;Zheng and Zhang, 2008;Zhu et al, 2010), fossil fuel combustion (Heller et al, 1998), coastal areas (Dong et al, 2014;Zhang et al, 2009), urban dust (Bucko et al, 2011;Shilton et al, 2005;Shu et al, 2000;Xie et al, 1999;Zhu et al, 2010) and historical monuments (Schiavon and Zhou, 1996). Zhang et al (2012) show the first example for the use of magnetic measurements in detecting the iron-containing particles in the Shanghai subway system.…”

Section: Introductionmentioning

confidence: 99%

Granulometric and magnetic properties of deposited particles in the Beijing subway and the implications for air quality management

Cui

Zhou

Dearing

2016

Science of The Total Environment

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The subway system is an important traffic facility in Beijing and its internal air quality is an environmental issue that could potentially affect millions of people every day. Due to the intrinsic nature of rail abrasion in subway tunnels, iron-containing particles can be generated and become suspended in the subway environment. While some studies (e.g. Li et al., 2006) have monitored the in-train levels of PM2.5s (particles < 2.5 μm), there is a lack of systematic assessment of the concentration and characteristics of iron-containing particles in the Beijing subway system. Here we report results of a study on the granulometric and magnetic properties of particulate samples collected at different localities of the Beijing subway system. Our results show that the subway samples are characterized by the presence of very fine particles. Volume proportions of 6.1 ± 1.3 % for PM2.5s and 27.5 ± 6.1 % for PM10s (particles < 10 μm) are found in the bulk subway particulate samples. These samples exhibit a strong magnetic signal, which is approximately two orders of magnitude higher than that in naturally deposited particles collected in Beijing. Fine grained ferromagnetic and ferrimagnetic minerals (e.g. iron and magnetite, respectively) are identified from mineral magnetic measurements and scanning electric microscopy. The samples collected from the Beijing stations with platform screen doors are found to be magnetically stronger and finer than those without them, suggesting that platform screen doors have failed to block the fine iron-containing particulate matters released from the rail tunnel. Given the potential health consequences of fine suspended ironcontaining particles, our results have important implications for air quality management in the Beijing subway system. We here submit a manuscript entitled "Granulometric and magnetic properties of particulate matter in the Beijing subway and the implications for air quality management". This work reports our finding of very fine particle matters in the Beijing subway environment, which are characterized by distinctly strong magnetic signals compared to those in naturally deposited particles. We also found variation of magnetic PM in the subway environment with platform screen door designs.Considering the potential health consequences of fine suspended iron-containing particles identified with magnetic techniques, our results not only have important implications for air quality management in the Beijing subway system but also demonstrate a new way of assessing environmental quality in metropolitan cities with subways.Thank you for your consideration. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 2 ABSTRACT The subway system is an important traffic facility in Beijing and its internal air quality is an environmental issue that could potentially affect mill...

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“…Environmental magnetism has become one of the main focuses of current research in pollution history reconstruction, monitoring the present environmental pollution, and tracing and separating the sources of pollution. The atmosphere [18][19][20][21], street dustfall [22][23][24][25], soil [1][2][3][4][5][6][7][8][9][10][11], sediment [12][13][14], leaves [26][27][28][29] and tree rings [30] are usually used as the research targets. Analysis is developed from a single Wang B, et al Chin Sci Bull January (2013) Vol.58 No.3 385 pollution source to multiple pollution sources and multivariate data analysis, and in some studies semi-quantitative models are created.…”

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Magnetic records of heavy metal pollution in urban topsoil in Lanzhou, China

Wang

Xia

et al. 2012

Chin. Sci. Bull.

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This study is a systematic analysis of the magnetic characteristics and heavy metal elements in soil samples collected from Lanzhou City, China. The 117 surface soil samples were measured to study the feasibility and effectiveness of environmental magnetism for evaluating heavy metal pollution in urban soils. Results of the study indicate that low-coercivity magnetite dominates the magnetic properties in the samples. The high values of the soil magnetic mineral concentration parameters and low values of magnetic particle size parameters are distributed throughout the northern area of Xigu District, the industrial zones of the eastern section of Chengguan District and the districts of the narrow sections connecting Chengguan District and the other three districts; these parameters are fundamentally consistent with the distribution of the high values of the Pollution Load Index and Nemerow Pollution Index. Semi-quantitative studies which use the environmental magnetic method to monitor pollution of heavy metals (such as As, Cr, Cu, Ni, Pb, Zn, and Fe) Chin Sci Bull, 2013, 58: 384395, doi: 10.1007 Anthropogenic activities, especially industrial processes, give rise to harmful emissions containing various magnetic minerals occurring in different amounts. These emissions are absorbed by the soil, sediments and plants through the atmosphere and runoff processes, and then change the circulation and existing conditions of the magnetic materials, therefore these special magnetic characteristics of the modern environment are all marked by human activities. The structure, type, concentration and particle size of these magnetic particles differ from those of the primary and secondary magnetic minerals occurring in the environment [1][2][3][4][5][6][7]. Moreover, magnetic particles are associated with elevated metal concentrations [8][9][10][11][12][13][14], especially Cu, Pb and Zn originating from paint, fuel additives, tyres and particulates from moving parts. Most researchers [15][16][17] consider that the heavy metals caused by combustion, such as copper, chromium, arsenic, zinc and lead, are always accompanied by iron oxide, and magnetic particles are strongly adsorbent and carriers of heavy metals, so the magnetic parameters may be an effective indicator of the content of certain pollutants. Environmental magnetism has become one of the main focuses of current research in pollution history reconstruction, monitoring the present environmental pollution, and tracing and separating the sources of pollution. The atmosphere [18][19][20][21], street dustfall [22][23][24][25], soil [1][2][3][4][5][6][7][8][9][10][11], sediment [12][13][14], leaves [26][27][28][29] and tree rings [30] are usually used as the research targets. Analysis is developed from a single Wang B, et al. Chin Sci Bull January (2013) Vol.58 No.3 385 pollution source to multiple pollution sources and multivariate data analysis, and in some studies semi-quantitative models are created. Low field magnetic susceptibility measurements have been succes...

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Identification of magnetic particulates in road dust accumulated on roadside snow using magnetic, geochemical and micro-morphological analyses

Cited by 110 publications

References 53 publications

The influence of the wind direction and plants on the variability of topsoil magnetic susceptibility in industrial and urban areas of southern Poland

The influence of the wind direction and plants on the variability of topsoil magnetic susceptibility in industrial and urban areas of southern Poland

Granulometric and magnetic properties of deposited particles in the Beijing subway and the implications for air quality management

Magnetic records of heavy metal pollution in urban topsoil in Lanzhou, China

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