Study on the correlation of magnetic properties and heavy metals content in urban soils of Hangzhou City, China

Lu, Shenggao; Bai, Shaoyuan

doi:10.1016/j.jappgeo.2005.11.002

Cited by 150 publications

(62 citation statements)

References 39 publications

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“…However, better correlations are found between heavy metals contents and remanent parameters. A similar result was reported by Lu and Bai, 2006. The correlations between SIRM and Pb, ARM and Cr, and IRM −100 mT and Cu are significant at 0.01 level.…”

Section: Figsupporting

confidence: 89%

Relationships between magnetic parameters, chemical composition and clay minerals of topsoils near Coimbra, central Portugal

Lourenço

Rocha

Gomes

2012

Nat. Hazards Earth Syst. Sci.

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Abstract. Magnetic measurements, mineralogical and geochemical studies were carried out on surface soil samples in order to find possible relationships and to obtain environmental implications. The samples were taken over a square grid (500 × 500 m) near the city of Coimbra, in central Portugal. Mass specific magnetic susceptibility ranges between 12.50 and 710.11 × 10 −8 m 3 kg −1 and isothermal magnetic remanence at 1 tesla values range between 253 and 18 174 × 10 −3 Am −1 . Chemical analysis by atomic absorption spectrometry shows that the concentration of various toxic elements was higher than the mean background values for world soils. Higher values of susceptibility and toxic elements content were reported near roads and rivers. Urban pollution and road traffic emission seem to be the main influence for these values. A semi-quantitative X-ray diffraction study has been carried out on a representative set of subsamples, using peak areas. Illite (average 52 %), kaolinite (average 55 %), chlorite (average 6 %) and irregular illite-smectite mixed-layers (average 9 %) are the major clay minerals groups identified. Mineral composition of total fraction confirms the presence of magnetite/maghemite. The clay minerals results point to a contrast in the behavior of the main clay minerals: illite, chlorite, and kaolinite (also, smectite in some samples), which are generally in agreement with the magnetic and geochemical data. The results showed that magnetic measurements are a sensitive, fast, inexpensive and robust method, which can be advantageously applied for studying soils affected by urban and road pollution.

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Section: Figsupporting

confidence: 89%

Relationships between magnetic parameters, chemical composition and clay minerals of topsoils near Coimbra, central Portugal

Lourenço

Rocha

Gomes

2012

Nat. Hazards Earth Syst. Sci.

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“…Similar results concerning the variation of χ and χfd in vertical soils profiles from China have been reported by Lu and Bai, (2006). Magiera et al, (2006) tried to discriminate the lithogenic and anthropogenic influence on topsoil using magnetic susceptibility measurements.…”

Section: Discussionsupporting

confidence: 77%

“…Thompson and Oldfield (1986) reported that soils near urban and industrial areas have an increased magnetic susceptibility, representative of the deposition of magnetic particles, such as, dusts of industries and fly ashes of the coal combustion. Moreover, magnetic susceptibility mapping was successfully applied in different countries for the estimation of anthropogenic pollution (Strzyszcz, 1993;Dearing et al, 1996;Scholger, 1998;Petrovsky et al, 1998Petrovsky et al, , 2000Kapicka et al, 2001;Lecoanet et al, 2001;Boyko et al, 2004;Jordanova et al, 2004;Lu and Bai, 2006;Magiera et al, 2006). Despite this big development especially in Europe, in Greece only few studies have been performed during the last decades (Scoullos et al, 1979, Sarris et al, 2009, Zananiri et al, 2010.…”

Section: Introductionmentioning

confidence: 99%

Magnetic susceptibility as a tool for the discrimination of anthropogenic and lithogenic history of topsoils: preliminary results from the broader area of Thessaloniki city.

et al. 2016

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In the recent years the measure of the magnetic susceptibility has been proved to be a reliable tool for the monitoring of pollution in topsoils. However the increase of magnetic susceptibility is not always correlated with polluted sources but it is possible to reflect the geological background of the area. In the present study a broad area in the southeast part of Thessaloniki city has been investigated by means of magnetic susceptibility measurements. In total 77 profiles up to 70 cm depth have been sampled. Magnetic susceptibility was measured in two different frequencies (0.47 and 4.7 KHz) and the percentage of frequency dependence was calculated. The spatial distribution of the magnetic susceptibility values was performed using GIS techniques. The results revealed the presence of two areas with high susceptibility values. These areas are investigated in details in order to distinguish the anthropogenic or the lithogenic influence.

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“…The magnetic technique is an effective tool for the research of heavy metals contamination. In particular, large amount of heavy metals is improperly emitted during some high-temperature processes such as coal and oil combustion in thermoelectric power stations and industrial plants, automobile exhaust, refuse incineration and kiln operations in cement plants (Lu and Bai 2006). The magnetic susceptibility of surface sediments is a marker of sediment sources and transport trends (Ellwood et al 2006), if those magnetic materials are derived from weathered continental rocks, both detrital and eolian are transported to a long distance into the deeper areas.…”

Section: Introductionmentioning

confidence: 99%

Environmental magnetic studies on surface sediments: a proxy for metal and hydrocarbon contamination

Venkatachalapathy

Rajeswari

Basavaiah

et al. 2013

Int. J. Environ. Sci. Technol.

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Visakhapatnam is one of the major port cities, and it is developed into a hub of many large-and mediumscale industries. Due to growing industrialization and urbanization, coast is vulnerable to both organic and inorganic micro-pollutants. Twenty-five surface sediments were collected along the Visakhapatnam coast for the measurement of texture size, petroleum hydrocarbons, trace metals and environmental magnetic parameters. The percentage of coarser particles was more in the northern region, whereas the percentage of fine particles was increased toward south. Elevated levels of petroleum hydrocarbons and trace metals were attributed due to marine and land-based sources, in particular, those were due to shipping activities, treated and partially treated sewage and industrial wastes. The concentrations of trace metals, petroleum hydrocarbons and magnetic minerals were decreased from nearshore to seaward. Our results revealed that the magnetic mineralogy is dominated by magnetite with a small proportion of hematite, and the grain size of magnetic minerals was in the range of pseudo-single domain to multidomain nature with detrital origin. From the principal component analysis, the magnetic concentration and mineralogy-dependent parameters co-vary with the heavy metal and PHC concentrations, suggesting that the inputs of magnetic minerals, petroleum hydrocarbons and heavy metals in the Visakhapatnam shelf sediments were derived from the same anthropogenic sources. Thus, the large magnetic dataset can be used to reduce the number of chemical analysis; hence, environmental magnetic parameters were used as a proxy for both organic and inorganic micro-pollutants.

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Study on the correlation of magnetic properties and heavy metals content in urban soils of Hangzhou City, China

Cited by 150 publications

References 39 publications

Relationships between magnetic parameters, chemical composition and clay minerals of topsoils near Coimbra, central Portugal

Relationships between magnetic parameters, chemical composition and clay minerals of topsoils near Coimbra, central Portugal

Magnetic susceptibility as a tool for the discrimination of anthropogenic and lithogenic history of topsoils: preliminary results from the broader area of Thessaloniki city.

Environmental magnetic studies on surface sediments: a proxy for metal and hydrocarbon contamination

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