The addition of inorganic fertilizers to treat crop soil and increase its production has become
a necessity and a tool used around the world. These fertilizers contain different quantities of …

The rapid proliferation of horizontal drilling and hydraulic fracturing for natural gas mining
has raised concerns about the potential for adverse environmental impacts. One specific …

The γ-radiation emitted by building materials is calculated from the activity indices for 232
Th, 226 Ra and 40 K and expressed as the activity concentration index (ACI). Gamma …

In this paper the most important problems in dating lake sediments with unsupported 210 Pb
are summarized and the progress in gamma-spectrometry of the unsupported 210 Pb is …

Different methods for sealing sample containers for 222 Rn when measuring 226 Ra
through its progenies 214 Pb and 214 Bi using gamma-ray spectrometry have been …

An α-spectrometry, using automated borate fusion and sequential extraction and exchange
chromatography, was used to determine the uranium and thorium based on environmental …

The establishment of a screening index would be a powerful tool to decide whether
abandoned uranium mining areas should be rehabilitated or decommissioned. Thus, in this …

This report presents a new methodology to isolate and measure 210 Po, as well as uranium
and thorium isotopes. This new methodology reduces the standard time of operation, the …

High concentrations of metals in organic matter can inhibit decomposition and limit nutrient
availability in ecosystems, but the long-term fate of metals bound to forest litter is poorly …

Soil systems are known to be repositories for atmospheric carbon and metal contaminants,
but the complex processes that regulate the introduction, migration and fate of atmospheric …