نتایج جستجو برای: geoaccumulation index igeo
تعداد نتایج: 396189 فیلتر نتایج به سال:
Abstract Purpose The study aims to assess the impact of human activity on content and migration trace elements in soil profiles various physico-chemical properties. research hypothesis assumed that related functioning buildings, agriculture, industry communication negatively affected element contents properties soils a selected urban area (the Grudziądz Basin). Materials methods Seven exposures...
ABSTRACT This study aims to evaluate potential ecological risks and heavy metal pollution in sewage sludge. For these purposes, domestic sludge samples were collected for a period of one year from wastewater treatment plant Bursa, Turkey analyzed metals. The average content the was wherein decreasing order Zn>Cu>Ni>Cr>Pb>As>Se>Cd. As whole, concentration metals below limit values indicated with...
the contents of as, cd, cu and mo were determined in soil surrounding meyduk tailings dam based on 21 surface soil samples. assessment of toxic element pollution in studied soil samples needs knowledge of pre-anthropogenic metal concentration to act as a reference against which measured values could be compared. estimating the background values was executed by sampling rocks adjacent to soil s...
Pollutants are persistent in the environment, taint food chain, and harm people's health because of their toxicity. In this study, mangrove snails called Cerithidea obtusa (C. Obtusa) were gathered from Southwest Johor, Malaysia, amounts macro micro elements Ca, Fe, K, Mg, Na, As, Mn, Zn soft tissues, shells, related surface sediments analysed. The Neutron Activation Analysis (NAA) method was u...
Abandoned iron ore mining soil was analyzed for its metal contamination. Pollution indices were calculated and used to examine the potential of area be polluted by metals. The samples collected in triplicate from ten sampling points spread throughout area. energy dispersive X-ray fluorescence (EDXRF) analytical method determine concentrations Cd, Cu, Co, Pb, Zn, Fe, Cr, Ni, Mn. order mean (mg/k...
The current study includes determination of the concentrations lead (Pb) in 18 specimen Kirkuk city soil (K). Inductively Coupled Plasma - Mass Spectrometry (ICP-MS) technology has been used analysis samples laboratories Acme company Canada. Results chemical clarified a rise average (26.11 ppm) compared with international (10 and uncontaminated ones (15 ppm), its surface depth (30.2ppm) lower d...
Population growth has led to the intensification of average daily traffic (ADT), highlighting vehicles as one major sources heavy metal (HM) pollution in cities. The objective this paper is conduct a spatial analysis HM associated with road-deposited sediments (RDSs), based on ADT observed main roads Latin American megacity (Bogotá, Colombia). following risk indices were considered: Geoaccumula...
The development artisanal and small-scale gold mining in recent years Côte d'Ivoire could pose a risk to soils health of local communities. This study aimed at assessing the impacts on areas northen localities (Boundiali, Korhogo Tengrela) d’Ivoire, where those activities are accentuated. Field observation physico-chemical parameters analysis (potential hydrogen (pH), cation exchange capacity (...
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...
heavy metals in the surface sediments of the two coastal ecosystems of cochin, southwest india were assessed. the study intends to evaluate the degree of anthropogenic influence on heavy metal concentration in the sediments of the mangrove and adjacent estuarine stations using enrichment factor and geoaccumulation index. the inverse relationship of cd and zn with texture in the mangrove sedimen...
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