This study presents preliminary results on mercury distribution, released by gold mining activities, in soils from Vila Nova
River region, an area located in Serra do Navio, Amapá, in the Brazilian Amazon. The soil samples were separated in two grain
sizes, sand (between 2 and 0.063 mm) and silt+clay (<63 μm), and have been analysed by radiochemical neutron activation analysis.
The precision and accuracy of the method were verified by means of the reference material analysis GXR-5 (USGS).