نتایج جستجو برای: geoaccumulation index

تعداد نتایج: 396080  

Journal: :Jurnal Reksabumi 2023

Kawasan muara merupakan salah satu ekosistem perairan yang sering mengalami kontaminasi logam berat seperti nikel (Ni), cadmium (Cd), timbal (Pb), dan merkuri (Hg). Kontaminasi tersebut biasanya berasal dari aktivitas manusia kegiatan rumah tangga, perkapalan, industri. Salah wilayah terletak di sekitar kawasan adalah laut Pulau Pasaran. ini terkenal sebagai sentra pembuatan ikan asin Provinsi ...

2015
Naglaa F. Soliman Samir M. Nasr Mohamed A. Okbah Huda S. El Haddad

Total metals concentrations, Geoaccumulation index (Igeo), Pollution load index (PLI), degree of contamination (DC) and sediment quality guidelines (SQGs) were used to assess heavy metals contamination status and ecological risk in the sediments from the Libyan Mediterranean coast. The distribution pattern of heavy metals in the sediment follows the sequence: Fe>Pb>Mn>Ni>Zn>Cr>Cu>Co>Cd. Over th...

2014
Jin Wu Yanguo Teng Sijin Lu Yeyao Wang Xudong Jiao

There is currently a wide variety of methods used to evaluate soil contamination. We present a discussion of the advantages and limitations of different soil contamination assessment methods. In this study, we analyzed seven trace elements (As, Cd, Cr, Cu, Hg, Pb, and Zn) that are indicators of soil contamination in Dexing, a city in China that is famous for its vast nonferrous mineral resource...

2012
M. A. Addo B. J. B. Nyarko J. K. Gbadago H. A. Affum B. O. Botwe

Heavy metal mobilization in the biosphere by human activities has become an important process in the geochemical recycling of these metals. In this work, 34 soil samples and 29 Tephrosia elegans plants collected in the vicinity of the Diamond Cement Factory, Aflao, Ghana were analyzed for As, Co, Cr, Cu, Mn, Ni, Pb and Zn using energy dispersive XRF. The results of the metal analysis indicated ...

2009
P. Michailova E. Szarek-Gwiazda A. Kownacki

The effect of contaminants on the genomes of Chironomus plumosus L. and Chironomus bernensis Wülker, Klötzli species was studied in the Dunajec River (station 1) and in the littoral of Czorsztyn Reservoir (stations 2 and 3). According to the index of geoaccumulation, the sediments were polluted by cadmium (Cd) and chromium (Cr). Cd concentrations at stations 1, 2, and 3 were 0.71, 0.56, and 1.2...

2014
Javed Iqbal Munir H Shah

Background: The present study was carried out to assess the seasonal variations, source apportionment, and risk assessment of heavy metals (Cd, Cr, Cu, Fe, Mn, Pb, and Zn) in the surface sediments from the Khanpur Lake, Pakistan. Methods: Composite samples are collected and processed to measure the concentrations of heavy metals in Ca(NO3)2 extract and acid extract of the sediments using flame ...

Journal: :Turkish journal of analytical chemistry 2022

This study aimed to investigate the risk of element/heavy metal pollution caused by listvenitization. In this context, heavy listvenite-derived soils in region where listvenitized ultrabasic rocks are present as a result hydrothermal alterations vicinity Alakeçi (Bayramiç Çanakkale/Western Türkiye) was investigated with index, geoaccumulation index and integrated parameters. For purpose, Cu, Zn...

Journal: :Journal of Geographical Sciences 2021

Heavy metal pollution is hazardous for the environment and human health. However, there are few studies of heavy caused by historic metallurgical activity. The Laoniupo site in Bahe River valley, Guanzhong Basin, China, was an important settlement Shang Culture (1600`-1046 BCE). We studied two stratigraphic profiles at site, which were used measurements magnetic susceptibility, concentrations, ...

Journal: :Environmental pollutants & bioavailability 2023

The concentration of heavy metals (HMs) in soil-plant systems was an important indicator soil metal pollution, and the migration transportation abilities HMs from to plants were great significance for evaluating food safety reducing health risks. This study conducted investigate contamination translocation soil-Paeonia lactiflora system Bozhou, Anhui Province, China. pollution assessed by calcu...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید