EN
This paper characterises S-SO4 concentration in the surface (0-20 cm) layers of the agricultural soils in Poland (45242 soil samples) and in the Lublin region (3648 soil samples). Mineral soils in Poland contain, on average, 1.79 mg of S-SO4/100 g of soil. In the Lublin region, it is 1.65 of S-S-O4/100 g of soil. In the whole of the country, 83.2% of the agricultural soils have natural (00 +10) levels of S-SO4; this includes the areas with very low (00) concentrations (58.1% of the agricultural land) as well as elevated (10) concentrations (25.1% of the agricultural land). Soils polluted with sulphur (20+30) make up 16.8% of the agricultural land. This includes weak (20) and heavy (30) pollution - 13.1 and 3.7%, respectively. In the Lublin region, 88.5% of the agricultural soils have natural (00+l0) levels of S-SO4 . This includes the areas with low (00) concentration (64% of the agricultural land) as well as the areas with elevated (1°) concentration (24.5% of the agricultural land). Soils polluted with sulphur (20+30) make up 11.5% of the agricultural land, including weakly (2°) polluted soils (8.7%) and heavily polluted (30) soils (2.8%).