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Magnetic characterization and heavy metals pollutions of sediments in Citarum River, Indonesia

Sudarningsih S.a, Aliyah H.b, Fajar S.J.b, Bijaksana S.b

a Faculty of Mathematics and Natural Sciences, Universitas Lambung Mangkurat, Banjarmasin, 70124, Indonesia
b Faculty of Mining and Petroleum Engineering, Institut Teknologi Bandung, Bandung, 40132, Indonesia

[vc_row][vc_column][vc_row_inner][vc_column_inner][vc_separator css=”.vc_custom_1624529070653{padding-top: 30px !important;padding-bottom: 30px !important;}”][/vc_column_inner][/vc_row_inner][vc_row_inner layout=”boxed”][vc_column_inner width=”3/4″ css=”.vc_custom_1624695412187{border-right-width: 1px !important;border-right-color: #dddddd !important;border-right-style: solid !important;border-radius: 1px !important;}”][vc_empty_space][megatron_heading title=”Abstract” size=”size-sm” text_align=”text-left”][vc_column_text]© 2019 Published under licence by IOP Publishing Ltd.Magnetic methods have been successfully used for pollution detection and mapping in riverine environment. These methods are considered faster and easier compared to conventional analytical methods. In this study, sediment samples from Citarum River, the largest river system in West Java Province and main water supply for more than 10 million people, were measured for their magnetic characteristics and heavy metals content to test the effectiveness of magnetic methods in detecting heavy metals pollution. Magnetic measurements include measurements of magnetic susceptibility (MS), isothermal remanent magnetization (IRM) saturation, and anhysteretic remanent magnetization (ARM) decay. The results show that mass-specific MS values tend to decrease from upstream to downstream, from 1127.3 to 393.2× 10-8m3kg-1. In all samples, the dominant magnetic mineral is found to be magnetite based on the IRM saturation field. The magnetic grains are predominantly multi domain (MD). Geochemical analyses showed that all water and sediment samples contain Fe, Cd, Co, Ni, Pb, Zn, As, Hg, and Mn. The heavy metals content varies irregularly in sediment samples although a negative correlation is found between heavy metals contents and magnetic parameters.[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Author keywords” size=”size-sm” text_align=”text-left”][vc_column_text]Anhysteretic remanent magnetizations,Citarum river , indonesia,Heavy metals content,Heavy metals pollution,Isothermal remanent magnetization,Magnetic characteristic,Magnetic characterization,Negative correlation[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Indexed keywords” size=”size-sm” text_align=”text-left”][vc_column_text][/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Funding details” size=”size-sm” text_align=”text-left”][vc_column_text]This research was financially supported by a research grant to S. Bijaksana from the Ministry of Research, Technology, and Higher Education of the Republic of Indonesia. The Ministry also provided a doctoral scholarship and research fellowship to Sudarningsih. The sediment samples were collected by permission from the Regency of Bandung. Kartika Hajar Kirana, Abd Mujahid Hamdan, Arif Wijaya, Mimin Iryanti, and Dimas Maulana Wibowo thanked for their assistance in the field and laboratory works.[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”DOI” size=”size-sm” text_align=”text-left”][vc_column_text]https://doi.org/10.1088/1742-6596/1204/1/012082[/vc_column_text][/vc_column_inner][vc_column_inner width=”1/4″][vc_column_text]Widget Plumx[/vc_column_text][/vc_column_inner][/vc_row_inner][/vc_column][/vc_row][vc_row][vc_column][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][/vc_column][/vc_row]