and it is characterised by the presence of important seams of galena. The mining,
minerallurgic and metallurgic activities in the area, as well as the local geological
(metallogenetic) conditions, are important sources of heavy metals in the environment,
resulting in considerable soil contamination. The study area occupies a surface area of 126
km2, divided into grid squares of 1 km2 for soil sampling, in order to characterise the …