نتایج جستجو برای: accumulation igeo sediment

تعداد نتایج: 184755  

Journal: :Acta aquatica turcica 2022

This study reports the presence of heavy metals (Cr, Ni, Cu, Cd, Pb) in sediment and water column Köyceğiz Lagoon Estuary System (KLES) (South-West Anatolia). The mean metal concentrations (µg L-1) were found as Cr: 3.72-8.36, Ni: 6.51-9.48, Cu: 1.29-11.88, Cd: ND-0.08, Pb: ND-0.34. samples to be below internationally acceptable limits. (mg kg-1) 1.75-4.25, 5.24-12.69, 0.25-0.51, <0.01, ...

Journal: :International journal of advanced research 2022

Coastal aquatic ecosystems are environments increasingly affected by human activities due to urban discharges and their use as dumps. The objective of this study is determine the profiles metallic elements concentration (Al, Cr, Mn, Fe, Co, Ni, Cu, Zn, As, Cd, Pb) Cotonou channel sediments evaluate quality. For this, surface (0-5cm) were sampled at 13 sites along channel. Thus,Geoaccumulation I...

Journal: :global journal of environmental science and management 2015
a.r. karbassi m. pazoki

in this study, the concentrations of heavy metals (ca, zn, cu, fe, mn, ni) in thesediment of shavoor river in khuzestan province in iran has been investigated. after the library studies and field studies, six samples of water and sediment were taken from the river in order to evaluate heavy metal pollution in sediments. to determine the geochemical phases of metals in sediment samples the 5-ste...

In this study, the concentrations of heavy metals (Ca, Zn, Cu, Fe, Mn, Ni) in thesediment of Shavoor River in Khuzestan Province in Iran has been investigated. After the library studies and field studies, six samples of water and sediment were taken from the river in order to evaluate heavy metal pollution in sediments. To determine the geochemical phases of metals in sediment samples the 5-ste...

Journal: :international journal of environmental research 2012
m.m. serbaji c. azri k. medhioub

eight selected heavy metals (cu, zn, pb, cd, cr, mn, fe and al) in surface and sub-surfacesediments in the northern coast of sfax (tunisia) were studied in order to assess the sediment quality and tohighlight the anthropogenic contributions to heavy metal distributions in the two study sediment levels.multiple chemometric approaches based on geographic information system (gis), enrichment facto...

2013
Ekengele Nga Léopold Patrick Baussand Ekodeck Georges Emmanuel

Heavy metal (Pb, Zn, Cu, Cr, Ni, Mn and Cd) concentrations were investigated for the first time in core sediments of the Municipal Lake of Yaounde, Cameroon. The area under study receives domestic raw sewage from surrounding populated neighborhoods through River Mingoa, main tributary of the lake. Other activities like automobile service stations, garages, non operational effluent treatment sta...

Journal: :global journal of environmental science and management 2015
a.r. karbassi s. tajziehchi s. afshar

oil and pollutants resulting from its extraction and exploitation are considered as one of the serious problems for human health. vast oil fields of ahvaz city located in southern iran are known as one of controversial subjects in contamination with heavy metals. in this study, oil fields' soils of ahvaz city (ab-teymour) were chemically analyzed in order to determine the concentration of eight...

Journal: :Journal of Marine Science and Engineering 2021

The Al-Salam Lagoon is one of the recreational sites along Jeddah coast, showing environmental impacts urbanization coast. A sediment core (220 cm) was collected from intertidal zone to evaluate heavy metals (Fe, Mn, Cr, Ni, Cu, Zn, and Pb) geochemical indices (contamination factor, geo-accumulation index, pollution load index). In organ-ic-rich muddy sediments (0–100 cm), there a high content ...

2012

Two short sediment cores collected from mangrove areas of Manori and Thane creeks along Mumbai coast were analysed for sediment composition and metals (Fe, Mn, Cu, Pb, Co, Ni, Zn, Cr and V). The statistical analysis of Pearson correlation matrix proved that there is a significant relationship between metal concentration and finer grain size in Manori creek while poor correlation was observed in...

Abdolreza Karbassi, Akbar Baghvand, Fereydoon Ghazaban, Mohammad Reza Vesali Naseh,

Background: Evaluation of heavy metals as toxic pollutants in environment has a significant importance in environmental pollution studies. surficial sediments of water resources have a high potential in releasing heavy metals to the upper water environment, hence sediment analysis presents guidelines to the authorities for monitoring the environmental systems. Methods: In this study, total an...

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