The levels of As and metals were well above those of soil quality criteria.
Concentrations of As were higher than contamination standards even inthe farthest sites.
Cadmium and Cu standards were exceeded in all soilsamples with the exception of S5.
Conversely, the standard for Zn ismore permissive and was only exceeded in the most contaminatedsoils (S2 and S3).
Therefore, soils 2, 3 and 4 require risk assessment aswell as S5 due to their As levels.
Moreover, the previous site-specificas sessment based on geochemical analysis alone(Moreno-Jimenezet al., 2011) showed that As and metals may cause a range of impacts over the entire research area, affecting all potential receptors.