Heavy metal contents and magnetic properties of surface sediments in volcanic and tropical environment from Brantas River, Jawa Timur Province, Indonesia
“…River sediments have massspecific magnetic susceptibility LF in the range of 356.2 -456.3 (× 10 -8 ) m 3 kg -1 with an average of 394.8 × 10 -8 m 3 kg -1 . Compared with other studies, the LF of sediments from Cikijing River has lower values than river sediments originating from Brantas River (Mariyanto et al, 2019) and Citarum River, starting from Balekambang to Nanjung (Sudarningsih et al, 2017) as reported. Meanwhile, soils from paddy fields have LF lower than those of river sediments in the range of 128.3 -374.1 (× 10-8) m 3 kg -1 (on average of 211.6 × 10 -8 m 3 kg -1 ).…”
Section: Resultsmentioning
confidence: 59%
“…Chaparro et al (2015) evaluated river conditions through magnetic analysis of river sediments in India, confirming a significant correlation between magnetic properties and heavy metal content. Similarly, in Indonesia, magnetic properties measurements of river sediment have also been carried out in several rivers, such as in Brantas River, East Java (Mariyanto et al, 2019), and Citarum River (Kirana et a., 2014;Sudarningsih et al, 2017). An earlier study reveals the variation of magnetic properties of Citarum River sediments and the correlation with seasons (Fitriani, 2002).…”
A number of activities occur around the Cikijing River in Rancaekek area, West Java, such as industrial and domestic activities. The various activities could decrease the quality of the river and surrounding environment due to anthropogenic pollutants that might be produced. Since the Cikijing River is also used as the source of irrigation, paddy fields around the river could be also be affected. The presence of pollutants in river sediments and agricultural soils over a long period could change their magnetic properties. Magnetic susceptibility of Cikijing River sediments and soils of the paddy fields in the surrounding have been examined considering that magnetic properties could represent environmental conditions. The results show that river sediments have magnetic susceptibility (cLF) in range of 356.2-456.3 (×10-8) m3kg-1, whereas soils samples have cLF varying from 94.1 to 347.1 (×10-8) m3kg-1, suggesting domination of ferrimagnetic minerals. The cFD (%) is <4% indicating the anthropogenic origin of magnetic minerals. Electron microscopy images show the imperfect octahedral and spherules shapes of magnetic grains that supports magnetic susceptibility analysis about the source of magnetic minerals. Elemental composition analysis reveals Fe and O’s content as main elements, including minor elements of Ca, Mg, Al. Si, Ti and Cr
“…River sediments have massspecific magnetic susceptibility LF in the range of 356.2 -456.3 (× 10 -8 ) m 3 kg -1 with an average of 394.8 × 10 -8 m 3 kg -1 . Compared with other studies, the LF of sediments from Cikijing River has lower values than river sediments originating from Brantas River (Mariyanto et al, 2019) and Citarum River, starting from Balekambang to Nanjung (Sudarningsih et al, 2017) as reported. Meanwhile, soils from paddy fields have LF lower than those of river sediments in the range of 128.3 -374.1 (× 10-8) m 3 kg -1 (on average of 211.6 × 10 -8 m 3 kg -1 ).…”
Section: Resultsmentioning
confidence: 59%
“…Chaparro et al (2015) evaluated river conditions through magnetic analysis of river sediments in India, confirming a significant correlation between magnetic properties and heavy metal content. Similarly, in Indonesia, magnetic properties measurements of river sediment have also been carried out in several rivers, such as in Brantas River, East Java (Mariyanto et al, 2019), and Citarum River (Kirana et a., 2014;Sudarningsih et al, 2017). An earlier study reveals the variation of magnetic properties of Citarum River sediments and the correlation with seasons (Fitriani, 2002).…”
A number of activities occur around the Cikijing River in Rancaekek area, West Java, such as industrial and domestic activities. The various activities could decrease the quality of the river and surrounding environment due to anthropogenic pollutants that might be produced. Since the Cikijing River is also used as the source of irrigation, paddy fields around the river could be also be affected. The presence of pollutants in river sediments and agricultural soils over a long period could change their magnetic properties. Magnetic susceptibility of Cikijing River sediments and soils of the paddy fields in the surrounding have been examined considering that magnetic properties could represent environmental conditions. The results show that river sediments have magnetic susceptibility (cLF) in range of 356.2-456.3 (×10-8) m3kg-1, whereas soils samples have cLF varying from 94.1 to 347.1 (×10-8) m3kg-1, suggesting domination of ferrimagnetic minerals. The cFD (%) is <4% indicating the anthropogenic origin of magnetic minerals. Electron microscopy images show the imperfect octahedral and spherules shapes of magnetic grains that supports magnetic susceptibility analysis about the source of magnetic minerals. Elemental composition analysis reveals Fe and O’s content as main elements, including minor elements of Ca, Mg, Al. Si, Ti and Cr
“…In this paper we present detailed data on the environmental magnetism measurement of Brantas River bulk surface sediments [1]. A review has shown recent developments between environmental magnetism with other sciences such as physics, chemistry and biology [2].…”
Section: Datamentioning
confidence: 99%
“…N-ARM is Normalized ARM.H (mT)ARM Intensity ( × 10 −8 A.m 2 kg −1 )N-ARM0264.311.005207.730.7910147.100.561593.140.352061.330.232535.150.133020.150.083510.510.04405.890.02451.820.01501.810.01Fig. 1ARM decay curve for typical bulk surface sediment sample (modified after [1]). …”
Section: Datamentioning
confidence: 99%
“…N-IRM is Normalized IRM.H (mT)IRM Intensity ( × 10 −8 A.m 2 kg −1 )N-IRM12.02117.380.0757.771080.720.64118.761508.530.89181.371591.570.94243.171630.370.96303.361603.460.95341.081625.980.96402.881606.450.95461.471612.760.95524.081639.960.97586.681655.880.98627.611634.080.96687.001609.690.95746.401667.050.98805.791693.621.00864.381591.510.94902.101619.040.96962.301671.350.991017.671675.430.99Fig. 2IRM saturation curve for typical bulk surface sediment sample (modified after [1]). …”
This article presents measurement data using environmental magnetism method on the bulk surface sediments related to the research article entitled “Heavy metal contents and magnetic properties of surface sediments in volcanic and tropical environment from Brantas River, Jawa Timur Province, Indonesia” Mariyanto et al., 2019. Surface sediments were taken from 20 different locations along Brantas River. In the laboratory, a series of magnetic measurements was conducted on sediment samples i.e. magnetic susceptibility, ARM (Anhysteretic Remanent Magnetization) and IRM (Isothermal Remanent Magnetization). These environmental magnetism data were used to characterize bulk surface sediments in the study area.
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