Magnetic, chemical and radionuclide studies of river sediments and their variation with different physiographic regions of Bharathapuzha river, southwestern India

Krishnamoorthy, N.; Chaparro, Marcos A. E.; Lecomte, Karina Leticia; Mullainathan, S.; Mehra, Rohit; Sinito, Ana M.

doi:10.1007/s11200-014-0145-6

Cited by 18 publications

(12 citation statements)

References 54 publications

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“…In general, these Fe and Ti contents were relatively higher than those of the report in the literature for other rivers (Fe in [8,9,28,29,[32][33][34], and Ti in [32,33]). Moreover, the Fe contents in the suspended sediment samples exceeded the environmental safety threshold, which is 20 mg/kg according to [35].…”

Section: Discussioncontrasting

confidence: 72%

“…In general, these Cu, Zn, and V contents were relatively higher than those of the reports in the literature for other rivers (Cu and Zn [8,9,28,29,32,34] and V [8,34]). The values of Cu content were generally lower than the environmental contamination threshold, which is 110 mg/kg according to [36], except for samples C and D, which represent densely-populated tributaries in the southern part of Bandung.…”

Section: Discussioncontrasting

confidence: 69%

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Variations in the Concentration of Magnetic Minerals and Heavy Metals in Suspended Sediments from Citarum River and Its Tributaries, West Java, Indonesia

et al. 2017

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Abstract:The Citarum River has a volcanic catchment area in West Java Province, and is one of the nationally strategic rivers in tropical Indonesia due to its roles in water supply and in power generation. The river is economically important, but it is also polluted by industrial, agricultural, and residential wastes. Suspended sediment samples were collected along a certain section of the Citarum River, starting in Balekambang through the area of Bandung Regency to the downstream village of Nanjung, where the river is dammed. Similar samples were also collected from seven tributaries of the Citarum River. Magnetic and heavy metal analyses show that unlike river sediments from a non-volcanic catchment area in temperate climates, magnetic susceptibility values tend to decrease downstream, showing that the magnetic minerals in the upstream area are mostly lithogenic in origin, containing more Fe-bearing minerals compared to those in tributary samples which are anthropogenic in origin. Anthropogenic pollution is also represented by the increase of Zn content along the river. The results suggest that applying magnetic methods for monitoring river pollution in the tropics or in the volcanic areas should be carefully analyzed and interpreted.

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Section: Discussioncontrasting

confidence: 72%

Section: Discussioncontrasting

confidence: 69%

Variations in the Concentration of Magnetic Minerals and Heavy Metals in Suspended Sediments from Citarum River and Its Tributaries, West Java, Indonesia

et al. 2017

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“…Moreover, magnetic methods can estimate the amount of AMP accompanied not only by heavy metals but also by some radionuclides, as magnetic susceptibility correlates with 232Th, 238 U, 40 K, and 226Ra radionuclides, presumably associated with the use of fertilizers in the surrounding agricultural areas (Chaparro et al 2015;Krishnamoorthy et al 2014;Suresh et al 2011).…”

Section: Introductionmentioning

confidence: 99%

Assessment of heavy metal pollution in Vistula river (Poland) sediments by using magnetic methods

Szczepaniak-Wnuk

Górka-Kostrubiec

Dytłow

et al. 2020

Environ Sci Pollut Res

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The present study evaluated the level of heavy metal (HM) pollution in Vistula river sediments in a highly urbanized Warsaw agglomeration (Poland). Magnetometry was used to assess the pollution level by measuring the fine fractions (0.071 mm and < 0.071 mm) of sediments collected from the surface layer of the riverbank. The magnetic methods (e.g., mass magnetic susceptibility χ, temperature-dependence magnetic susceptibility, and hysteresis loop parameters) were supplemented by microscopy observations and chemical element analyses. The results showed the local impact of Warsaw's activity on the level of HM pollution, indicated by the maximum concentrations of magnetic particles and HM in the city center. The sediment fraction < 0.071 mm was dominated by magnetite and by a large amount of spherical-shaped anthropogenic magnetic particles. The pollution from the center of Warsaw was transported down-river over a relatively short distance of approximately 11 km. There was a gradual decrease in the concentrations of magnetic particles and HM in areas located to the north of the city center (down-river); furthermore, χ and concentrations of HM did not decrease to the values observed for the area to the south of Warsaw (up-river). The study showed two possible sources of sediment pollution: traffic-related and heat and power plant emissions. The influence of an additional source of pollution cannot be excluded as the amount of spherules in the sediments at the center was extremely high. The present study demonstrates that magnetometry has a practical application in detecting and mapping HM pollution in river systems.

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“…Ésta suele tener una fuerte señal magnética y se ha demostrado que es posible discriminar entre diferentes fuentes de contaminación (Chaparro et al, 2006). Algunos trabajos recientes referidos al tema son los realizados por Yang et al (2007), Franke et al (2009), Chaparro et al (2015Chaparro et al ( , 2017b, entre otros.…”

Section: Introductionunclassified

Propiedades geoquímicas y magnéticas de sedimentos como indicadores de contaminación. Caso de estudio: río Suquía, Córdoba, Argentina

Sepúlveda¹,

Lecomte²,

Pasquini³

et al. 2019

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La cuenca del río Suquía (superficie ~6300 km2) es un sistema hidrológico de mediana extensión, ubicado en la provincia de Córdoba, en la región central de Argentina. El río Suquía nace del lago San Roque, discurre por sectores serranos, atraviesa una ciudad densamente poblada (Córdoba: 1.5 millones de habitantes) y continúa su curso por la llanura Chaco-Pampeana donde se desarrollan actividades agrícolas y ganaderas. Debido a diversas actividades urbanas e industriales, el río recibe, a lo largo de su curso, aportes contaminantes, los cuales se depositan aguas abajo, en el lecho del mismo. Los resultados de los análisis geoquímicos y magnéticos de los sedimentos depositados en el lecho principal del río, permitieron evaluar el grado de contaminación de este sistema natural. Se extrajeron muestras de sedimento de fondo del cauce del río y se separaron distintas fracciones granulométricas para determinaciones magnéticas. Se utilizaron métodos de magnetismo ambiental (susceptibilidad magnética y magnetización remanente anhistérica) para la identificación y cuantificación de minerales magnéticos, entre ellos, ferrimagnéticos del tipo magnetita. En la fracción limo-arcilla (< 62.5 mm) se determinaron óxidos mayores y elementos traza. Desde el punto de vista geoquímico los sedimentos evidencian un bajo grado de madurez mineralógica y son equivalentes a lutitas y lutitas ricas en Fe. Los indicadores de contaminación (Índice de Geoacumulación, Igeo; Factor de Enriquecimiento, FE; Contaminación Urbana Industrial, C.U.I.) arrojaron los valores más altos en el área serrana, donde también se registraron los mayores valores de susceptibilidad magnética, debido a factores naturales potenciados por la explotación de canteras. En el área urbana se registraron los valores más bajos de contaminación, mientras que, en la zona rural, se determinó un grado de contaminación moderado a alto, asociado a las actividades agrícolas propias del uso de la tierra. De este modo, los procesos que dan origen a las características geoquímicas y magnéticas de estos sedimentos se diferencian espacialmente a lo largo de la cuenca y se deben a factores tanto naturales como antrópicos. Además, las concentraciones de metales en los sedimentos se han incrementado en la última década en toda la cuenca. La correlación significativa entre variables geoquímicas y parámetros magnéticos demuestra la potencialidad de estudios combinados como una metodología de monitoreo ambiental en sistemas hídricos.

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Magnetic, chemical and radionuclide studies of river sediments and their variation with different physiographic regions of Bharathapuzha river, southwestern India

Abstract: ABSTRACT

Cited by 18 publications

References 54 publications

Variations in the Concentration of Magnetic Minerals and Heavy Metals in Suspended Sediments from Citarum River and Its Tributaries, West Java, Indonesia

Variations in the Concentration of Magnetic Minerals and Heavy Metals in Suspended Sediments from Citarum River and Its Tributaries, West Java, Indonesia

Assessment of heavy metal pollution in Vistula river (Poland) sediments by using magnetic methods

Propiedades geoquímicas y magnéticas de sedimentos como indicadores de contaminación. Caso de estudio: río Suquía, Córdoba, Argentina

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