The present study documents the Hg content in 45 urban topsoil samples from the highly urbanized city of Athens, Greece. The Hg concentrations were quantified by applying aqua regia digestion on the <100 μm soil fraction followed by inductively coupled plasma-mass spectrometry (ICP-MS) with a detection limit of 5 μg·kg−1. The median concentration of Hg in Athens soil is 96 μg·kg−1; ten out of 4...

Bioremediation is the use of living organisms, primarily microorganisms, to degrade environmental contaminants into less toxic forms. Nine biobeds (ground cavity filled with a mixture of composted organic matter, topsoil, and a surface grass) were established at Kentucky State University research farm (Franklin County, KY) to study the impact of this practice on reducing surface runoff water co...

In this study, selected statistical methods (Discriminant analysis, ANOVA, Correlation analysis and Principal component analysis) were used to determine the heavy metal accumulation and its controlling factor and to identify the origin of these metals in soil samples collected from two sites along the Khoshk River banks, Shiraz, Iran. For this purpose, 40 topsoil samples were collected and the ...

Exponential industrialization and rapid urbanization have resulted in contamination of soil by metals from anthropogenic sources in Dongguan, China. The aims of this research were to determine the concentration and distribution of various metals (arsenic (As), cadmium (Cd), chromium (Cr), copper (Cu), mercury (Hg), nickel (Ni), lead (Pb) and zinc (Zn)) in soils and identify their potential heal...

Background The Sediment Quality Objectives (SQO) indirect effects assessment determines whether sediments meet California’s narrative SQO for human health: Pollutants shall not be present in sediments at levels that will bioaccumulate in aquatic life to levels that are harmful to human health. This program determines whether sediment contamination at a site results in an unacceptable health ris...

Abstract Large distribution of roots in topsoil layers allow more uptake soil water and nutrients during the vegetative growth, but it may be disadvantageous if deficit develops reproductive stage. The relationship between (0–0.4 m) use, dry matter nitrogen (N) accumulations, grain yield was examined winter wheat (Triticum aestivum L.) with contrasting root size topsoil. Two old landraces (CW13...

• Soil shear strength, τ, was measured in intact topsoil at six matric potentials. The preload suction stress (PSS) estimated from water saturation and suction. Normal load, PSS, density, clay organic matter explained >90 % of variation τ. model predicted well τ for two independent data sets. the trend also subsoil Distortion soil stresses during field traffic may be even more damaging to funct...

Water quality data collection in shallow water areas can be a challenging task. Obstacles encountered in such environments include difficulty in covering large territories and the presence of inaccessible areas due to a variety of reasons such as a soft bottom or contamination. There is also a high probability of disturbing the test area while placing the sensors. This paper describes a NASA-fu...

BACKGROUND AND OBJECTIVES: Urban farming makes a substantial influence on the household economy of the urban poor especially in developing countries. Urban soil the hot spot of urban farming is a natural sink for contaminants especially the trace elements derived mainly from anthropogenic activities. This study’s aim was to quantify the concentrations of selected trace elements...