heavy metal level Articles | Environmental XPRT

Detecting Arsenic in Soil using Field Portable X-Ray Fluorescence

Abstract Rapid, accurate on site determination of arsenic and heavy metal levels in soil is a powerful tool in efforts to rebuild and revitalize abandoned and under-utilized industrial properties. The EPA is actively spearheading initiatives to encourage assessment, clean-up and re-use of these industrial properties. In the case of heavy metals (often the eight RCRA metals Pb, As, Cd, Cr, Hg, ...

May 1, 1997

By Thermo Scientific Niton Analyzers

Heavy metal levels in tap water in Batina Region, Oman

Most household in Batina depend on private wells for their fresh water supplies. The quality of such water is not regulated or tested by authorities and, therefore, consumers' health might be at risk if water is contaminated. We assessed the contribution of some heavy metals to water pollution. Water samples from 364 houses were collected and analysed for levels of lead, chromium, nickel and ...

Nov. 8, 2007

By Inderscience Publishers

Bioaccumulation of heavy metals in some fauna and flora

Bioaccumulation of heavy metals in fauna and flora in the Ijaw area of the Niger Delta of Nigeria were investigated. The fauna-molluscs and crustacea, and flora Hibiscus esculentus and vernonia amygdalina were selected for this study. Results show that Molluscs and crustacea accumulate considerable amounts of heavy metals. Higher levels of all the metals determined Hg, Pb, Cr, Cu, Ni, and Zn were ...

Mar. 20, 2007

By Center for Environment and Energy Research & Studies (CEERS)

Preliminary assessment of heavy metals levels of soils of an oil field in the Niger Delta, Nigeria

Abstract: This communication presents the results of preliminary investigation of the characteristic levels of heavy metals in surface soils of an oilfield in the Niger Delta. The results indicate higher concentration of the following metals: Cd, Pb, Cu; Ni, Zn, Cr, Mn and Hg in soils around the gas plant than the pipeline areas. There is a significant temporal and spatial variation in the ...

Apr. 13, 2006

By Center for Environment and Energy Research & Studies (CEERS)

Analysis of leachates from solid waste dumpsites: a tool for predicting the quality of composts derived from landfills

Leachate and soil samples were collected near five solid waste dump sites in the Accra metropolitan area of Ghana over a period of six months. The leachate samples were analysed for heavy metals, coliform bacteria and helminth eggs while the soil samples were analysed for only helminth eggs. Heavy metals analysed included Cd, Pb, Zn, Mn, and Cu. It has been observed that the leachates contain ...

Mar. 24, 2014

By Inderscience Publishers

Contamination levels assessment of heavy metals in road dust deposited in various types of urban traffic: a case study of Hassi Messaoud City (Algeria)

This study identified the levels and sources of heavy metal contamination in road dust from busy traffic areas in Hassi Messaoud, Algeria. A total of 13 sampling sites, including three traffic rotaries, tow highways, three downtown areas, four circulation roads and one background area, were selected for this study. The contamination levels of the heavy metals in the road dust were evaluated ...

Jan. 7, 2015

By Inderscience Publishers

Integrated water resources management in central Asia: nutrient and heavy metal emissions and their relevance for the Kharaa River Basin, Mongolia

Within the framework of Integrated Water Resources Management (IWRM) the nutrient and heavy metal levels within the Kharaa river basin were investigated. By the application of the MONERIS model, which quantifies nutrient emissions into river basins, various point and diffuse pathways, as well as nutrient load in rivers, could be analysed. Despite seasonal variations and inputs of point sources ...

Jul. 1, 2010

By IWA Publishing

Bioremediation of pollutant-contaminated water

Raw water resources in Kafr El-Sheikh Governorate are affected by many contaminants particularly during the winter season and low demand period of the Nile River, in which water level decreases and organic matter increases resulting in decreased dissolved oxygen, and increased ammonia, nitrite and bacterial load in the water. In this study, physicochemical and microbiological characteristics ...

Aug. 23, 2017

By IWA Publishing

The LOTOS?EUROS model: description, validation and latest developments

In this paper, we present a validation study for oxidants and secondary inorganic aerosols using the new regional Chemistry Transport Model (CTM) Long Term Ozone Simulation (LOTOS) European Operational Smog (EUROS). The model is the product of the integration of the Netherlands Organisation for Applied Scientific Research (TNO) LOTOS model and the National Institute for Public Health and the ...

Feb. 14, 2008

By Inderscience Publishers

Accumulation of heavy metals in the bottom sediments of the Irkutsk Reservoir

The chemical composition of the bottom sediment, and more particularly the heavy metals content, reflects human developments and impacts on the catchment and reservoir's natural environment. The bottom sediments of the reservoir retained by the Irkutsk Dam have been analysed. The reservoir is mainly supplied by water from Lake Baikal. The following amounts of heavy metals have been found in the ...

Oct. 7, 2013

By Inderscience Publishers

Sewage sludge ash characteristics and potential for use in bricks, tiles and glass ceramics

The characteristics of sewage sludge ash (SSA) and its use in ceramic applications pertaining to bricks, tiles and glass ceramics have been assessed using the globally published literature in the English medium. It is shown that SSA possesses similar chemical characteristics to established ceramic materials and under heat treatment achieves the targeted densification, strength increases and ...

Mar. 24, 2016

By IWA Publishing

Survey of Heavy Metals in the Catfish Synodontis Clarias

Elevated levels of heavy metals in the catfish Synodontis clarias can be a good indication of pollution of an aquatic ecosystem due to anthropogenic influence. The concentrations of Zn, Cd, Pb, Mn and Ni were determined in Synodontis clarias caught along a section of Taylor Creek and its associated tributaries. Samples were collected bimonthly between July 1999 and June 2000 in five stations. The ...

Jan. 1, 2007

By Center for Environment and Energy Research & Studies (CEERS)

Potential health impacts of consuming desalinated bottled water

This study compared physicochemical properties, anion and carbon content and major and trace elements in desalinated and non-desalinated bottled water available in Qatar, and assessed the potential health risks associated with prolonged consumption of desalinated water. Results indicate that Qatar's population is not at elevated risk of dietary exposure to As (mean = 666 ng/L), Ba ...

Jun. 8, 2015

By IWA Publishing

Physiological sensitivity of freshwater macroinvertebrates to heavy metals

Macroinvertebrate species traits, such as physiological sensitivity, have successfully been introduced in trait‐based bioassessment approaches and are important predictors of species sensitivity in the field. The authors ranked macroinvertebrate species according to their physiological sensitivity to heavy metals using toxicity data from acute laboratory assays. Rankings for each of the heavy ...

May 3, 2012

By John Wiley & Sons, Ltd.

The use of cypress tree bark as an environmental indicator of heavy metals deposition in Fuheis City, Jordan

The present study focused on the use of cypress tree bark as an environmental indicator of heavy metal deposition in Fuheis City, Jordan, and the evaluation of the impact of emissions from the cement industry in the adjacent environment. Tree bark samples were collected from four directions (north, south, east and west) in the vicinity of the cement factory. The samples were analysed for heavy ...

Jul. 14, 2008

By Inderscience Publishers

Trace element and heavy metal concentrations in fruits and vegetables of the Gediz River region

The Gediz river that irrigates the largest agricultural part of the Aegean Region's "Gediz Plain" is being polluted by industrial and domestic wastes starting from the Murat Mountain and continuing to the river's mouth. To study the pollution status, vegetables (tomato, pepper, bean, purslane, cowpea), fruits (apple, plum, pomegranate, walnut, watermelon, peach, cherry, grape), and leaf samples ...

Aug. 29, 2007

By Inderscience Publishers

Arsenic in Soil and CCA Treated Wood by Field Portable XRF

Chromated copper arsenate (CCA) has been the most widely used wood preservative for decks, playgrounds and exterior housing structures. However, in recent years, issues surrounding the use of CCA preservative chemical have escalated, prompting manufacturers to voluntarily stop producing it as of the end of 2003 and begin using alternative wood preservatives. There are concerns of possible ...

Jul. 1, 2003

By Thermo Scientific Niton Analyzers

Organic and inorganic pollutants in marine sediments from northern and southern continental shelf of the Gulf of Mexico

The present work was developed in the continental shelf of Tamaulipas, Veracruz and Tabasco during 1999–2000 in the Gulf of Mexico. The main goal of this study was to evaluate levels of heavy metals (Cr, Ni, Pb and Cd) in total and bioavailable concentration, as well as the polycyclic aromatic hydrocarbons (PAHs); the organic matter and carbonates were determinated too. Heavy metals in total ...

Mar. 3, 2006

By Inderscience Publishers

Regional-scale monitoring of coastal contamination. Nutrients and heavy metals in estuarine sediments and organisms on the coast of Galicia (northwest Spain)

We determined background levels of heavy metals in sediments and biota of estuarine environments and nutrient reference levels in sediments of the Galician coast. This region is characterised by having ria-type estuaries. The determination of these levels, which were affected by the geological heterogeneity of the area, was the basis that let us evaluate the contamination status of this coast. ...

Jan. 26, 2004

By Inderscience Publishers

A case study of some lakes located at and around Thane City of Maharashtra, India, with special reference to physico-chemical properties and heavy metal content of lake water

The increasing trend in concentration of metals in the environment has created considerable attention amongst ecologists globally during the last decades. However, no such studies have been carried out in India and there are no past metal load data available. Therefore, we initiated a study to estimate the levels of water pollution of the Upavan, Masunda, Makhmali and Rewale Lakes situated at ...

Aug. 13, 2010

By Inderscience Publishers

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