نتایج جستجو برای: topsoil contamination
تعداد نتایج: 54660 فیلتر نتایج به سال:
The air dose rate in an environment contaminated with (134)Cs and (137)Cs depends on the amount, depth profile and horizontal distribution of these contaminants within the ground. This paper introduces and verifies a tool that models these variables and calculates ambient dose equivalent rates at 1 m above the ground. Good correlation is found between predicted dose rates and dose rates measure...
the concentrations of potentially toxic elements (as, sb, and hg) and some trace elements in 36 topsoil samples and 18 agricultural soil samples were measured at the aq-darreh river watershed, nw iran. based on the results of the chemical analysis and comparing them with different standards, it seems that the soils of the aq-darreh river watershed are polluted with as and sb. this pollution res...
The forest litter and underlying mineral topsoil are typically sampled analyzed separately although they in a dynamic balance, which ensures macro- microelement cycling the ecosystem, including flux accumulation of xenobiotics contaminated sites. Although national legal regulations specify single limits element concentration for entire “topsoil” layer, irrespectively kind materials resting at e...
Antimony (Sb) is one of the elements of increasing environmental significance. In this study, concentrations of Sb were measured on 21 roadside topsoil samples collected from a medium-size city, Xuzhou (China), in order to assess the magnitude of contamination and to identify the possible contamination sources. The mode of occurrence of Sb and the effect of particle size fractions on Sb concent...
Most urban greening interventions involve soil de-sealing and management to enhance fertility. Management typically requires translocating fertile topsoil the site, which comes at great environmental costs. We hypothesized that de-sealed soils would undergo an increase of their fertility without exogenous application. assessed experimental plots with topsoil, topsoil. Both treatments were veget...
The grain size composition of topsoil characterizes the soil texture and other physical properties. The coarsening of topsoil grain size is a visible symbol of land degradation; thereby the change in topsoil grain size can be potentially used to monitor desertification using remote sensing. This study proposes a new index for detecting topsoil grain size composition through ground in situ soil ...
Cement dust deposition on soil has been implicated in the heavy metal (HM) contamination of soil, leading to adverse effects on plants and humans. This study assessed the impact of cement dust deposition on the HM content of the soil samples in the vicinity of a cement factory and its implication on the public health of the host community. Topsoil samples were collected at varying distances and...
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