The environmental degradation in the Tsumeb Area, Namibia, is poorly qualified in spatial terms, since the availability of accurate and up-to-date regional geochemical data for both, unpolluted and polluted areas are limited. To determine an extent of the past industrial pollution, geochemical mapping of soils and grasses was carried out in the Tsumeb Area and the results were compared with those of numerical modeling of solid and gaseous emissions from the Tsumeb smelter, which is still in operation. The area was covered by a semiregular network of topsoil sampling with a density of at least one composite sample for a 1 x 1 km basic cell using the methodology recommended by Salminen et al. (1998). The mapping in a scale of 1: 25 000 covered a total area of 429 km2 . As the anthropogenic contamination is usually restricted to the surface layer of soil, reference samples were taken from a depth of 80–90 cm of the soil profile. The Tsumeb region agriculture is mostly oriented on the livestock production. Therefore, different grass species collected from pasturelands were analysed for heavy metals contents. Soil, anthropogenic sediments and grass were analysed for As, Cd, Co, Cu, Ga, Ge, Hg, Mo, Pb, Zn, Tl, Ssulf and Corg. Statistical characteristics of analytical data were obtained using non-parametric statistical programme S-plus (MathSoft, USA). Geochemical data were expressed in the form of spot or isoline maps using SURFER (Golden Software Inc.) program. Numerical modeling was carried out using Symos´97 program (EIONET, 2003), which is based on the Gausstype distribution of the emissions halo. Keywords: environment, soil contamination, pollution modeling, Tsumeb Smelter, Namibia.