نتایج جستجو برای: geoaccumulation index igeo

تعداد نتایج: 396189  

Journal: :International journal of environment and geoinformatics 2023

The aim of this study is to determine the anthropogenic effects in lake Gala Thrace Region and make an ecological risk analysis as a result these effects. Based on multi-element analyzes samples collected from by Grab Core method, using ICP-MS, which frequently used calculation sediment pollution studies; Ecological lakes with statistical such Enrichment Factor (EF), Contamination (CF), Geoaccu...

Journal: : 2021

Sulak alan ekosistemleri çok sayıda fauna ve flora türüne yaşam ortamı sunan, aynı zamanda insanların faydalandığı önemli doğal kaynak değerleridir. Son yıllarda artan antropojenik etkiler sulak alanlarda PTE kaynaklı ekolojik bozulmaya buralardan çeşitli yollarla faydalanan insanlar üzerinde sağlık risklerine neden olmaktadır. Bu nedenle, bozulma riski analizleri yapmak için analitik metotlar ...

Journal: :Marine pollution bulletin 2011
Erwan Tessier Cédric Garnier Jean-Ulrich Mullot Véronique Lenoble Mireille Arnaud Michel Raynaud Stéphane Mounier

This study presents trace elements levels in surface and deep sediments of the Toulon bay (SE France) subjected to anthropogenic inputs (navy base, harbors, etc.). The studied elements (As, Cd, Cr, Cu, Hg, Ni, Pb, Zn) are defined as priority contaminants in aquatic systems. Fifty-five points scattered on the entire bay were sampled, allowing the determination of contaminants distribution with a...

Journal: :Selcuk journal of agriculture and food sciences 2022

The objective of this study was to establish contamination level for, Pb, Zn, Cu, Ni, Cr, As, Hg, Sb, Co, and Cd in soils around the old Hg mine area central part Turkey. 34surface samples from were collected. Samples digested metals determined by ICP-OES assess metal using Enrichment factor (EF), (Cf), Geoaccumulation index (Igeo), hazard quotient (HQ) (individual metal), (Cd), modified (mCd),...

2015
Lanfang Han Bo Gao Huaidong Zhou Dongyu Xu Xin Wei Li Gao

The alteration of hydrologic condition of Three Gorges Reservoir (TGR) after impoundment has caused numerous environmental changes. This study investigated the distribution, accumulation and potential sources of the seldom monitored trace elements (SMTEs) in sediments from three tributaries (ZY, MX and CT) and one mainstream (CJ) in TGR during different seasons. The average contents of most SMT...

Journal: :Ege Journal of Fisheries and Aquatic Sciences 2022

The lake management strategy of sediment dredging (removal) is periodically undertaken in shallow, eutrophic Mogan Lake, an important recreation area. This study aims to use certain indices - enrichment index (EF), contamination/pollution (CF), degree contamination (Cd), pollution load (PLI), geoaccumulation (Igeo), potential ecological risk (Eri), integrated (PER), and mean probable effect con...

Journal: :journal of tethys 0

soil contamination in the vicinity of the abandoned lakan lead and zinc mine was studied. the results showed that over the past decades, the environmental pollution was caused by lead, zinc tailings dam and acid mine drainage. the average of lead, zinc, cadmium, copper and nickel is 1295, 4273, 27, 185 and 92 mg/kg, respectively in the soils of tailings dam. these metals were continuously dispe...

Journal: :international journal of environmental research 0

the inter-tidal mangrove environment of mengkabong lagoon is important as it supports the local fishing activities, nursery grounds for many fish and shellfish species, and as well as being central for ecotourism activities. the study showed that in general, the physicochemical parameters (ph, salinity and electrical conductivity), granulometric fractions, organic matter, base cations (na, k, c...

Journal: :Journal of environmental sciences 2008
Ruilian Yu Xing Yuan Yuanhui Zhao Gongren Hu Xianglin Tu

The concentrations of eight heavy metals (Cu, Zn, Pb, Cd, Cr, Ni, Hg, and As) in the intertidal surface sediments from Quanzhou Bay were determined to evaluate their levels and spatial distribution due to urbanization and economic development of Quanzhou region, southeast China. The ranges of the measured concentrations in the sediments are as follows: 24.8-119.7 mg/kg for Cu, 105.5-241.9 mg/kg...

Journal: :Journal of environmental biology 2016
Amudala Prathap Vivek Kujur Sukalyaon Chakraborty Tanushree Bhattacharya

Coal mining is inevitable for economic growth of a country, but at the same time deteriorates the quality of the environment. Open cast mine, especially affects the top soil most negatively. In the present study, soil samples from three representative areas of mining viz proposed, operational and abandoned sites from Charhi and Kuju of Jharkhand were collected and analysed for physicochemical p...

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