نتایج جستجو برای: geoaccumulation index

تعداد نتایج: 396080  

Journal: :Sustainability 2023

This study focuses on the riverbed sediments in Changsha-Zhuzhou-Xiangtan (CS-ZZ-XT) section of lower reaches Xiangjiang River. Principal element analysis, ecological risk and early warning methods were used to explore distribution pattern assessment various chemical elements sediments. The results indicated that vertical distributions Sc, Co, Th, U more homogeneous, while Cr, V, Cu, Ni distrib...

Journal: :Han-guk toyang biryo hakoeji 2023

In Korea, 90% of the population lives in urban areas, so agriculture is commonly carried out. However, research on safety soils for growing food still needs to be done. Thus, this study was conducted evaluate suitability soil crop cultivation by investigating heavy metal concentration and plant from gardens Jinju. Soils leaves were collected 23 gardens, concentrations As, Cd, Cr, Cu, Ni, Pb, Zn...

Journal: :Watershed ecology and the environment 2022

The contamination levels and distribution of heavy metals were assessed in riverbed sediments water column samples from Mura Kimpulande Rivers, both impacted by copper-cobalt gold mining activities. Analyses performed using inductively coupled plasma-mass spectrometry (ICP-MS), atomic absorption (AAS), fluorescence (AFS). Results showed high concentrations Ni, Cu, Zn, As, Cd, Hg samples. rivers...

Journal: :Indonesian Journal of Chemistry 2022

The main purpose of the research was to analyze distribution Arsenic (As), Cadmium (Cd), Copper (Cu), Iron (Fe), Nickel (Ni), Cobalt (Co), Mangan (Mn), and Zinc (Zn) in soft tissues, shells, associated surface sediments Cerithidea obtusa (C. obtusa) mangrove snails collected from Sungai Besar Sepang. concentration iron (Fe) found be highest relation other toxic elements sediments, shells C. obt...

Journal: :Journal of Marine Science and Engineering 2022

The concentration and distribution of trace metals were determined in sediment cores from the Khuan Khi Sian wetland, Thailand. collected seven stations dry wet seasons 2022. Pb, As, Cd season range 0.00–60.16, 0.00–6.68, 0.00–0.92 mg/kg (dry weight), respectively. Meanwhile, 0.00–12.12, 0.00–3.86, vertical profiles metal concentrations core show a general increase bottom to top. Average heavy ...

2017
Yongfeng Xu Yi Wu Jiangang Han Pingping Li

Heavy metal contamination in lake sediments is a serious problem, particularly in developing countries such as China. To evaluate heavy metal pollution and risk of contamination in lake sediments on a national scale in China, we collated available data in the literature of the last 10 years on lake sediments polluted with heavy metals from 24 provinces in China. Based on these data, we used sed...

Journal: Pollution 2017

Water and sediment samples were collected from six different stations, located along the Nil River between February and June 2015. Concentrations of cadmium, lead, zinc, and copper were determined. The extent of the sediment pollution was assessed, using the multiple pollution indices, namely contamination factor (CF), pollution load index (PLI), and the geoaccumulation index (Igeo). The result...

Journal: :محیط شناسی 0
کبری جعفری دانش آموخته ی زمین شناسی زیست محیطی دانشگاه پیام نور مشهد ناصر حافظی مقدس عضو هیئت علمی گروه زمین شناسی دانشگاه فردوسی مشهد علیرضا مظلومی عضو هیئت علمی گروه زمین شناسی دانشگاه پیام نور مشهد اعظم قزی دانش آموخته ی دکترای زمین شناسی مهندسی دانشگاه فردوسی مشهد

introduction landfilling sites of wastes including big volume of waste. in recent years lack correct management caused that landfilling sites of municipal waste taken as one of main source pollution effluence at environmental. from between diverse contaminants heavy metals because of environmental stability, biogeochemical process, poison biology, sorption and desorption, redox potential, sedim...

Journal: :Atmosphere 2021

The goal of this research is to assess hazardous heavy metal levels in PM2.5 fractioned road dust order quantify the risk inhalation and potential health effects. To accomplish this, Inductively Coupled Plasma Mass Spectroscopy (ICP-MS) was used determine concentrations eight metals (Cr, Cu, Ni, Zn, Cd, As, Pb, Hg) portion samples from five different land use areas (commercial, residential, ind...

Journal: :Journal of The Serbian Chemical Society 2022

Heavy metals are naturally occurring elements, but they regarded as significant environmental pollutants due to their high density and toxicity even at low concentrations. The aim of this paper is the evaluation pollution level heavy in river riverbank sediments, well estimation origin spatial differences along course Vrbas River through Banja Luka. concentrations have been assessed using Induc...

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