نتایج جستجو برای: accumulation igeo

تعداد نتایج: 149890  

A. Hosseini Alhashemi M. Mohammadi Roozbahani P. Maktabi

Accumulation of trace metals in sediment can cause severe ecological impacts. The present study determines the elemental concentrations and chemical partitioning of heavy metals in surface sediment of Shadegan wetland. Shadegan wetland is one of the most important wetlands in southwest of Iran and it is in Ramsar-listed wetlands. For this purpose, 7 sampling stations were selected for sediment ...

Journal: :Atmosphere 2021

Heavy metals in road dust pose a significant threat to human health. This study investigated the concentrations, patterns, and sources of eight hazardous heavy (Cr, Ni, Cu, Zn, As, Cd, Pb, Hg) street Zhengzhou city PR China. Fifty-eight samples were analyzed based on three methods risk assessment, i.e., Geo-Accumulation Index (Igeo), Potential Ecological Risk Assessment (RI), Nemerow Synthetic ...

Journal: :Journal of Marine Science and Engineering 2022

Red Sea coastal development has rapidly accelerated in recent decades that led to a rise the anthropogenic heavy metal levels sediments. A total of 80 surficial sediment samples were collected from shallow waters along eastern coast near Jeddah, Saudi Arabia. These three locations, designated as North, Middle and South assess concentrations six metals: chromium (Cr), manganese (Mn), nickel (Ni)...

ژورنال: سلامت و محیط زیست 2020

Background and Objective: Heavy metal contamination of surface soils has become a serious concern. The aim of this study was to evaluate the potential risk of heavy metal (loid) pollution on human health in the surface soils of Arak industrial areas, the capital of Markazi province in western Iran. Materials and Methods: 235 surface soil samples were collected from a depth of 0-5 cm. Concentra...

Journal: : 2021

The aim of our study is to determine the hyperaccumulatory properties by examining heavy metal accumulation (Co, Ni, Fe) in endemic Anchusa leptophlla subsp. tomentosa, Alyssum pateri pateri, Glaucium acutidentatum and non Erysimum uncinatifolium species collected from a copper mining area Elazığ Maden district. All are hyperaccumulator according their Bioconcentration Factor (BCF) values Co el...

Journal: :Journal of Marine Science and Engineering 2021

This research intends to offer a scientific foundation for environmental monitoring and early warning which will aid in the protection management of Qaroun Lake. Lake is increasingly influenced by untreated wastewater discharge from many anthropogenic activities, making it vulnerable pollution. For that, six pollution indices, namely contamination factor (Cf), enrichment (EF), geo-accumulation ...

Journal: :Journal of Materials Science and Chemical Engineering 2022

Global water shortage is caused not just by the physical scarcity of water, but also gradual deterioration quality resources such as lakes, streams and rivers with heavy metals. This present study evaluated status Mn, Fe, Cr, Cu, Ni, As, Zn, Pb Cd in sediments from lower Orange River Inductively Coupled Plasma Atomic Emission Spectrometry technique collecting a total eleven samples, each weighi...

Journal: :International Journal of Agriculture,Biology & Environment 2023

A study has been conducted to evaluate the degree of Heavy Metals (HM)contamination on farm soils Wakwa’s, using enrichment factor (EF), geo-accumulation index (Igeo), pollution load (PLI), Ecological risk factors (Eir), indices(PER) and statistical analysis.In currentstudy, composite surface agricultural soil samples were collected in 4 sites analyzed for concentration HMs including As, Ba, Co...

ژورنال: بوم شناسی آبزیان 2017

Mercury (T-Hg), as the most toxic Trace metal, can have adverse effects on the environment. In this study, the concentrations of T-Hg were investigated in surface sediments of higher and lower tidal zones of Hormozgan province coasts including the stations of Shahr Jask, Ariyan International Wetland Lagoon, Khorgorsuzan Bandar Abbas, Bostono Industrial Zone, Coastal Park of Khumir, Shahrbonderl...

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