This study focuses on the middle–late Permian bauxite deposits found within karstic
depressions and sinkholes of carbonates of the Ruteh and Nessen Formations …

This study discussed the environmental fate and ecological hazards of heavy metals in the
soil-plant system and sediment-water column around the former Pb-Zn mining Zeïda district …

One of the most serious environmental issues related to mining industry in Morocco and
elsewhere around the world, is the pollution from abandoned mine sites. Mine wastes cause …

Soil and stream sediment contamination from abandoned artisanal mines is of prime
importance due to the associated potential for heavy metal and metalloid contamination …

This article presents the concept of geochemical background from an environmental
perspective. The idea of establishing the typical concentrations of elements in various …

In Spain, due to its important mining past, there are many abandoned mine waste facilities.
This study evaluates the potential of Spanish mine wastes for the recovery of critical and …

The impact of agricultural and anthropogenic activities can play a significant role in heavy
metal precipitation and transport in water. Human activities along two rivers: the Palmiet and …

This study identifies the natural background, anthropogenic background and distribution of
contamination caused by heavy metal pollutants in soil in Chunghua County of central …

Guideline values are used to identify polluted or contaminated areas based on background
values. Brazilian law establishes three guideline values for pollutants: a quality reference …

The old mining district of Linares (Southern Spain) was subject to intense Pb mining,
minerallurgical and metallurgical activities for centuries, causing significant contamination of …