Evaluation of the impact of reducing national emissions of SO2 and metals in Poland on background pollution using a bioindication method

The measurements were performed in the Chojnowskie Forests, a region recognized as a background area for central Poland. Changes in environmental pollution by S, Cd, Cu, Pb and Zn in 2006–2014 were evaluated using a bioindication method. This method was based on measurements of pollutants in Scots pine (Pinus sylvestris L.) needles. The datasets contains: Data set with content of S, Cd, Cu, Pb and Zn in Scots pine needles in sampling points with geographical coordinates (shp and kml files) are avalable.