trace element Articles | Environmental XPRT

Trace elements - controlling emissions from coal combustion

International and national legislation is increasingly being applied to trace element emissions. Although emissions have decreased for a variety of reasons in many developed countries, continued use of coal and more successful control strategies in other sectors mean that coal combustion is still a relatively important source of some trace elements, especially mercury. Existing pollution control ...

Jan. 25, 2004

By Inderscience Publishers

A Trace of Arsenic

The cans of baby formula invaded Brian Jackson’s Dartmouth College lab late in 2010. His team picked up an armful of popular brands at the food co-op in Hanover, N.H. Then another armload. Eventually Jackson had a cabinet full of the brightly labeled canisters. Today, he still keeps a few in his office. Not as clutter — that’s not his style. He just likes to keep his toxicology ...

Sep. 30, 2013

By Freytech Inc.

Atmospheric concentration and fluxes of trace elements in Visakhapatnam City of India

Airborne PM10 samples were collected during winter and summer at three different sites in a coastal city, Visakhapatnam, India. Average individual trace element concentrations fluctuated between 19 ng m−3 (Cd) and 4,802 ng m−3 (Zn). Average trace element concentrations for winter were observed ...

Mar. 31, 2013

By Inderscience Publishers

The scalp hair as a monitor for trace elements in biomonitoring of atmospheric pollution

The chemical element contents in scalp hair of 80 apparently healthy 15- to 58-year-old citizens (36 females and 44 males) of a non-industrial region in the Central European part of Russia were investigated by Instrumental Neutron Activation Analysis (INAA) and Inductively Coupled Plasma Atomic Emission Spectrometry (ICP-AES). The summary of statistics, arithmetic mean, standard deviation, ...

Apr. 24, 2011

By Inderscience Publishers

Risk indicator for agricultural inputs of traCE elements to Canadian soils

Received for publication April 27, 2008. Trace elements (TEs) are universally present in environmental media, including soil, but agriculture uses some materials that have increased TE concentrations. Some TEs (e.g., Cu, Se, and Zn) are added to animal feeds to ensure animal health. Similarly, TEs are present in micronutrient fertilizers. In the case of phosphate fertilizers, some TEs (e.g., Cd) ...

Mar. 24, 2009

By Soil Science Society of America (SSSA)

Speciation of major, minor and trace elements in River Nile mud

Nile mud sediment samples were collected from the bottom of the main stream of the River Nile at Aswan (Governorate) and ten other sites along the river. The samples were analysed using various acid extraction systems. Atomic absorption spectrophotometry was used for multi-element determination, and chromic acid was used for organic matter determination. Values of 0.08-0.89%, 0.4-8.5 ppm, ...

Sep. 15, 2009

By Inderscience Publishers

Definition and Number of Subsamples for Using Mosses as Biomonitors of Airborne Trace Elements

Abstract We collected 50 subsamples of the moss Scleropodium purum from each of three sampling sites and determined the concentrations of As, Cd, Cu, K, Hg, Ni, Pb, Se, and Zn in each subsample. We then calculated the number of subsamples required to determine significant differences in the mean concentrations of two sampling sites. We found that to differentiate between an uncontaminated ...

Nov. 17, 2005

By Springer

Leaching of nutrients and trace elements from stockpiled Turkey litter into soil

Received for publication December 10, 2007. In addition to nutrients, poultry are fed trace elements (e.g., As) for therapeutic purposes. Although a large proportion of the nutrients are assimilated by the birds, nearly all of the As is excreted. Hence, turkey litter constituents can leach into the soil and contaminate shallow ground water when it is stockpiled uncovered on bare soil. This study ...

Mar. 24, 2009

By Soil Science Society of America (SSSA)

How are trace elements mobilized during the postweaning fast in northern elephant seals?

Northern elephant seal (Mirounga angustirostris) pups undergo a substantial intertissue reorganization of protein, minerals, and other cellular components during their postweaning development, which might entail the mobilization of associated contaminants.The authors investigated the changes in concentrations of 11 elements (Ca, Cd, Cr, Cu, Fe, Hg, Ni, Pb, Se, V, and Zn) in a longitudinal study ...

Jul. 25, 2012

By John Wiley & Sons, Ltd.

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. 28, 2007

By Inderscience Publishers

The use of assemblage models to describe trace element partitioning, speciation and fate: A review

The fate of trace elements in soils, sediments and surface waters is largely determined by their binding to reactive components of which organic matter, metal oxides and clays are considered most important. Assemblage models, combining separate mechanistic complexation models for each of the reactive components, can be used to predict the solid‐solution partitioning and speciation of trace ...

May 25, 2014

By John Wiley & Sons, Ltd.

Leaves of Lolium multiflorum as indicators of airborne trace element distribution in Central Italy

Ambient air contains particles, ranging from sub-micrometric aerosols to clearly visible dust and sand grains. Plants during evolution developed the ability to maximise light interception and CO2 assimilation and also the efficiency to collect the airborne pollutants. Therefore, plant tissues have been used as indicators of trace elements air pollution. Lolium multiflorum leaves were used as a ...

Jun. 29, 2010

By Inderscience Publishers

INAA and AAS study of essential trace elements in ayurvedic Indian medicinal plants

Specific parts (leaves and fruits) of different medicinal plants often used in Indian ayurvedic system were analysed for 18 elements (K, Mn, Na, Fe, Zn, Cu, Co, Br, Sm, Cl, La, Al, Cr, Ca Cd, Ni, Pb and Hg) by employing instrumental neutron activation analysis (INAA) and atomic absorption spectroscopy (AAS) techniques. The samples were irradiated with thermal neutrons in a nuclear reactor and the ...

Aug. 30, 2010

By Inderscience Publishers

Seasonal movement of trace-element discharge in a typical south-Indian suburban community

Four conventional activated sludge sewage treatment plants (STPs) in Southern India were chosen to investigate the occurrence of major ions and trace metals in dissolved fraction of the wastewater. Samples were collected from inlet and outlet of STPs during the pre-monsoon and monsoon seasons. Except for a few elements (Mn, Mo and Ni), the concentrations of the rest increased at the outlet of ...

Dec. 17, 2017

By IWA Publishing

Determination of Trace Elements in Lead for Battery Applications using Atomic Absorption Analysis

Sample and Standard Preparation procedures for Trace Elements in Lead [1] Preparation of Lead (Pb) Samples: Drill Pb metal to make small pieces. Weigh 2.0 grams of these pieces on a balance. Place the sample in a 400ml Pyrex breaker and add 10ml H2O, 2.5 grams of tartaric acid and 7ml HNO3. Warm on a hot-plate until the sample dissolves. Dilute to 100ml in a volumetric flask with water (H2O). ...

Dec. 31, 2005

By Buck Scientific Inc

Use of mosses to study atmospheric deposition of trace elements: contributions from investigations in Norway

This paper presents essential features of biomonitoring work carried out in the author's laboratory during more than 25 years using various analytical techniques for the determination of over 50 elements. A substantial part of this work concerns large-scale deposition surveys in Norway using the moss Hylocomium splendens, where five nationwide surveys have been carried out since 1977. ...

May 21, 2008

By Inderscience Publishers

Determination of trace elements composition in dawadawa, a food condiment used in West and Central Africa

Dawadawa, obtained by alkaline fermentation of the matured dawadawa pod, is a culinary product used to enhance taste, flavour and intensify meatiness in soups, sauces and other dishes in West and Central Africa. It is believed to cure cholera, stomachache, diarrhea, bronchitis, pneumonia, leprosy, hypertension, and pain in the bones. The trace element contents of the fermented dawadawa pods were ...

Jan. 2, 2012

By Inderscience Publishers

Trace elements accumulation in edible tissues of five sturgeon species from the Caspian Sea

This study is focused on twenty trace elements (Ag, Ba, Bi, Cd, Co, Cr, Cs, Cu, Ga, In, Mn, Mo, Pb, Rb, Sb, Sn, Sr, Ti, V, Zn) accumulation in muscles of five sturgeon species (Acipenser guldenstaedti, A. persicus, A. nudiventris, A. stellatus and Huso huso) from the southern part of the Caspian Sea. Moreover the relationships between some biological characteristics and the levels of the selected ...

Dec. 31, 2004

By Springer

A soil column study to evaluate treatment of trace elements from saline industrial wastewater

Industrial wastewater from the flue gas desulfurization (FGD) process is characterized by the presence of trace elements of concern, such as selenium (Se) and boron (B) and relatively high salinity. To simulate treatment that FGD wastewater undergoes during transport through soils in subsurface treatment systems, a column study (140-d duration) was conducted with native Kansas soil and saline ...

Jul. 30, 2017

By IWA Publishing

Cadmium‐induced changes in trace element bioaccumulation and proteomics perspective in four marine bivalves

Bivalves are employed widely as biomonitors of metal pollution and proteomics has increasingly been applied to solve ecotoxicological issues. This study aimed to investigate the effects of Cd exposure on the bioaccumulation of other trace elements and reveal the molecular mechanisms using proteomics technologies. The results showed that Cd exposure resulted in remarkable changes in body ...

Apr. 27, 2012

By John Wiley & Sons, Ltd.

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