Heavy metal (Cr, Ni, Cu, Zn, Cd, and Pb) pollution, fractionation, and ecological risks in the sediments of Lake Chaohu (Eastern China), its eleven inflowing rivers and its only outflowing river were studied. An improved BCR (proposed by the European Community Bureau of Reference) sequential extraction procedure was applied to fractionate heavy metals within sediments, a geoaccumulation index w...

The concentrations of heavy metals (As, Ba, Co, Cr, Cu, Mn, Ni, Pb, V, and Zn) in campus dust from kindergartens, elementary schools, middle schools, and universities in the city of Xi'an, China, were determined by X-ray fluorescence spectrometry. The pollution levels and hotspots of metals were analyzed using a geoaccumulation index and Local Moran's I, an indicator of spatial association, res...

In recent years, research on heavy metals has become very popular, because the status of can reflect marine environment a region. Based this, this paper carries out evaluation and analysis in sediments. content coastal sediments Binhai, Jiangsu, from waters autumns 2012, 2015, 2018, environmental quality was quantitatively evaluated using geoaccumulation index potential ecological risk. The sou...

An extensive survey was conducted in this study to determine the spatial distribution and possible sources of 7 heavy metals (Pb, Cu, Zn, Cr, Ni, Co, Mn) in the soils in Perlis and producing a heavy metal distribution maps. 18 soil samples around Perlis undergo microwave digestion and analyzed by inductively coupled plasma mass spectrometry ICP-MS. The spatial distribution pattern shows that Cu...

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...

The purpose of this study is to recognize the contamination characteristics of trace metals in soils and apportion their potential sources in Northern China to provide a scientific basis for basic of soil environment management and pollution control. The data set of metals for 12 elements in surface soil samples was collected. The enrichment factor and geoaccumulation index were used to identif...

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...

Understanding the dynamics and spatial variation of subaquatic sediment contamination in Santos Estuarine System has been interest to scientific community environmental managers; hazardous contaminant compounds, either individually or synergistically, can affect health local community. In present study, water column salinity geochemical properties (calcium organic matter content, grain size) we...

The water quality of the Persian Gulf is influenced by various industrial and urban discharges. The study area is a small linked estuary with the Straits of Hormuz in the Persian Gulf. This study was conducted to evaluate anthropogenic assessment, pollution status and potential ecological risk of some heavy metals (Pb,Ni, Zn, and Fe) in intertidal surface sediments of a mangrove estua...