scholarly journals Accumulation and vertical distribution of heavy metals in sapropel of Gryaznoe Lake (Medvezh'egorsk district, Republic of Karelia)

Vestnik MGTU ◽  
2017 ◽  
Vol 20 (1/2) ◽  
pp. 177-188
Author(s):  
Z. I. Slukovskii ◽  
◽  
A. S. Medvedev ◽  
T. P. Bubnova ◽  
E. V. Siroezhko ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Vertical Distribution

Vertical Distribution and Mobility of Heavy Metals in Agricultural Soils along Jishui River Affected by Mining in Jiangxi Province, China

2014 ◽  
Vol 42 (10) ◽  
pp. 1450-1456 ◽  
Author(s):  
Guannan Liu ◽  
Wei Xue ◽  
Li Tao ◽  
Xinhui Liu ◽  
Jing Hou ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Vertical Distribution ◽  
Agricultural Soils ◽  
Jiangxi Province

scholarly journals Distribusi Vertikal Logam Pb, Zn, Cr dan Keterkaitannya Terhadap Karbon Organik Sedimen di Pantai Marunda, Jakarta

2020 ◽  
Vol 9 (2) ◽  
pp. 125-132
Author(s):  
Triyanti Nurhidayah ◽  
Lilik Maslukah ◽  
Sri Yulina Wulandari ◽  
Kurnia Kurnia
Keyword(s):  
Heavy Metals ◽  
Vertical Distribution ◽  
Lower Layer ◽  
Middle Layer ◽  
Average Concentration ◽  
Anthropogenic Activity ◽  
Sediment Texture ◽  
The Relationship ◽  
The Vertical Distribution ◽  
Very High

Pantai Marunda terletak di Teluk Jakarta dan berdekatan dengan muara Sungai Tiram. Kegiatan antropogenik di sekitar Pantai Marunda sangat tinggi, sehingga dapat menyumbang limbah yang mengandung logam berat Pb, Zn dan Cr. Limbah logam berat yang terakumulasi dalam perairan, akan  mengendap dalam sedimen dan seiring berjalannya waktu akan mengalami peningkatan. Tujuan dari penelitian ini, untuk mengetahui konsentrasi Pb, Zn, dan Cr berdasarkan kedalaman vertikal, hubungannya dengan karbon organik total (KOT) dan ukuran butir sedimen di Pantai Marunda. Sampel sedimen diambil menggunakan polietylen sediment core dan dipisahkan berdasarkan kedalamannya (1-3 cm, 4-6 cm, dan 7-9 cm). Logam berat dalam sedimen dianalisis menggunakan metode destruksi asam dan diukur nilai absorbansinya menggunakan AAS, karbon organik total menggunakan metode loss of ignition (LOI) dan analisa tekstur sedimen dengan metode pengayakan dilanjutkan pemipetan. Hasil menunjukkan bahwa konsentrasi rerata logam berat Pb, Zn, Cr secara berurutan pada lapisan atas sebesar 5,14; 107,19; dan 12,79 ppm, lapisan tengah sebesar 4,41; 100,20; 12,28  ppm serta lapisan bawah sebesar 4,8; 101,30; 14,10 ppm. Logam berat Zn dan Cr berkorelasi positif kuat terhadap KOT dan persentase lumpur, sedangkan terhadap Pb berkorelasi negatif. Hasil penelitian ini menggambarkan bahwa distribusi logam berat Pb, Zn dan Cr secara vertikal menunjukkan konsentrasi tinggi pada lapisan permukaan yaitu pada kedalaman sedimen 1-3 cm dan keberadaanya ditentukan oleh konsesntrasi  KOT dan fraksi sedimen jenis lumpur. The Marunda Beach is located on the Jakarta Bay and adjacent to the mouth of the Tiram River. Anthropogenic activity around Marunda Beach is very high, so it can contribute the heavy metals such as Pb, Zn and Cr. The heavy metal will accumulate in the sediment and over time will be increase. The purpose of this study was to determine the vertical distribution of Pb, Zn, Cr, and their relationship to total organic carbon (TOC) and the grain size. Sediment samples were taken using polyethylene cores and this sample separated based on their depth (1-3 cm, 4-6 cm, and 7-9 cm). The heavy metals were analyzed using acid destruction and absorbance values were measured using AAS, TOC using the loss of ignition (LOI) and sediment texture with a sifting method, followed by pipetting. The results showed that the average concentration of Pb, Zn, Cr in the upper layer was 5.14; 107.19; 12.79 ppm, in the middle layer of 4.41; 100.20; 12.28 ppm and in the lower layer 4.8; 101.30; 14.10 ppm, respectively. Zn and Cr are strongly positively correlated to TOC and mud, and vice versa, the relationship to Pb is negative. The results of this study found that the vertical distribution of Pb, Zn and Cr was high in the surface layer (1-3 cm) and their presence was determined by TOC concentration and mud fraction.

Vertical Distribution and Ecological Risk Evaluation of Heavy Metals in West-Branch-Way of Yalu River Estuary

2011 ◽  
Vol 356-360 ◽  
pp. 781-785
Author(s):  
Yan Cheng ◽  
Yue Liu ◽  
Chun Peng Zhang ◽  
Fu Xiang Li ◽  
Jing Wei Liu ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Vertical Distribution ◽  
Risk Evaluation ◽  
River Estuary ◽  
Mining Pollution ◽  
Metals Pollution ◽  
Evolution Characteristics ◽  
Ecological Risk Evaluation ◽  
Heavy Metals Pollution ◽  
Yalu River

After gathering Core YLJ-40, we studied the 210Pb radioactivity of sediments and evolution characteristics of As, Hg, Cr, Ni, Zn, Pb, Cd, Cu in the heavy metals. The results shows that the heavy metals pollution in Yalu River estuary except Cu takes on ascend trend year after year; heavy metals distribution presents segmentation characteristics and most of heavy metals came from the pollutants of industry and agriculture, while Cu originates from the mining pollution. The evaluating results based on the different evaluation background value are not exactly the same. But it has been an indisputable fact that the heavy metals pollution is becoming more serious in Yalu River estuary.

scholarly journals Vertical distribution of heavy metals in wastewater-irrigated vegetable garden soils of three West African cities

2010 ◽  
Vol 89 (3) ◽  
pp. 387-397 ◽  
Author(s):  
Nafiu Abdu ◽  
Aisha Abdulkadir ◽  
John O. Agbenin ◽  
Andreas Buerkert
Keyword(s):  
Heavy Metals ◽  
Vertical Distribution ◽  
West African ◽  
African Cities

A comprehensive survey on the horizontal and vertical distribution of heavy metals and microorganisms in soils of a Pb/Zn smelter

2020 ◽  
Vol 400 ◽  
pp. 123255 ◽  
Author(s):  
Shuzhen Li ◽  
Bi Zhao ◽  
Ming Jin ◽  
Liang Hu ◽  
Hui Zhong ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Vertical Distribution ◽  
Comprehensive Survey ◽  
Horizontal And Vertical Distribution

Vertical Distribution and Pollution Characteristics of Soil Heavy Metals in a Relocation Paint Factory

2012 ◽  
Vol 610-613 ◽  
pp. 1718-1721 ◽  
Author(s):  
Hao Hu ◽  
Yu Zhao Feng ◽  
Yi Yang ◽  
Shu Guang Wang ◽  
Can Liang Li
Keyword(s):  
Heavy Metals ◽  
Vertical Distribution ◽  
Soil Profiles ◽  
Pollution Characteristics ◽  
Soil Heavy Metals ◽  
Background Value ◽  
Ni Content ◽  
The Vertical Distribution

Selected six soil profiles in a relocation paint factory, respectively sampling at 20cm, 50cm, 100cm of each profile and detecting the Pb、Zn、Cd、Ni content to research the vertical distribution and pollution characteristics. The results showed that: part of the sample profiles were in different degrees of pollution by Pb and Zn. When the heavy metals were not accumulated in the soil upper layers, the content of the heavy metals fluctuated around the background value, when the heavy metals were accumulated in the soil upper layers, the heavy metals contents down a decreasing trend from upper layers to lower layers.

scholarly journals Vertical distribution and analysis of micro-, macroelements and heavy metals in the system soil-grapevine-wine in vineyard from North-West Romania

2015 ◽  
Vol 9 (1) ◽  
Author(s):  
Florin-Dumitru Bora ◽  
Claudiu-Ioan Bunea ◽  
Teodor Rusu ◽  
Nastasia Pop
Keyword(s):  
Heavy Metals ◽  
Vertical Distribution ◽  
North West
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