Data were derived from the study: "Recognition and Visualisation of the Geological Structure of the Gulf of Gdańsk for Natural Resources Management", which was developed by the Polish Geological Institute and released in 2008. The geological research carried out in the framework of the project aimed to specify the geological recognition of the Gulf of Gdansk and to visualize the morphology, sediment distribution, dynamic processes occurring at the bottom and the Quaternary sediments structure, with special emphasis on the Late Glacial and Holocene. One of the most important tasks was to obtain current detailed information about the geochemical status of the surface sediments. The seismoacoustic methods used have identified geological structure to a depth of 10 to 50 m b.s.l., depending on the geological structure of the bottom and the water depth.

Geological-tourist map of Gorce National Park in scale 1: 25 000 is one of the 10 part series of maps, commissioned by the Ministry of Environment, a project financed by the NFEPandWM.

Geological -tourist map of "Mierzeja Wiślana" Landscape Park in scale 1: 60 000 is one of the 5 part series of maps, commissioned by the Ministry of Environment, a project financed by the NFEPandWM

Geological -tourist map of Seaside Landscape Park in scale 1: 60 000 is one of the 5 part series of maps, commissioned by the Ministry of Environment, a project financed by the NFEPandWM.

Data were derived from the study "Recognition and Visualisation of the Geological Structure of the Pomeranian Bay for Natural Resources Management", which was developed by the Polish Geological Institute and released in 2013. The aim of the study was more accurate than the previous recognition and visualization elements of the bottom morphology and the Cenozoic geological structure in the area of the Pomeranian Bay and the Polish part of the Oder Bank. The results are shown on geological maps at a scale of 1: 100 000 as well as on cross-sections and profiles. Analysis of data obtained from geophysical surveys, bottom soundings and laboratory analyses of the samples was the basis for verification of the prospects for aggregate deposits and valorisation of areas where they occur. The geochemical status of surface sediments was also determined and shown on the content maps of analyzed chemical elements.

Geological -tourist map of Romincka Primeval Forest Landscape Park in scale 1:40 000 is one of the 5 part series of maps, commissioned by the Ministry of Environment, a project financed by the NFEPandWM.

Geological-tourist map of Ojcow National Park in scale 1: 25 000 is one of the 10 part series of maps, commissioned by the Ministry of Environment, a project financed by the NFEPandWM.

Geological-tourist map of Drawa National Park in scale 1: 40 000 is one of the 10 part series of maps, commissioned by the Ministry of Environment, a project financed by the NFEPandWM.

The GIS data were obtained during digitalisation the "Geological Map of Baltic Sea bottom of 1: 200 000" issued by the Polish Geological Institute in 1989-1995. The basic content of map includes lithological diversification of the southern Baltic surface sediments and their origin. In addition, if the surface layer has a thickness of less than about 20 cm, the underlying deposits are also shown. The basis of sediment types distinction was F. P. Shepard classification (triangles classification) using Wentworth grain classes. In classification applied sand is additionally divided into four subtypes. The map area is covered by 17 grain size types and subtypes of surface sediments.

The data come from the "Geochemical Atlas of the Southern Baltic", which was developed by the Polish Geological Institute and released in 1994. The Atlas covers the Polish maritime areas. In the sediment samples from the 368 sites the content of Corg., Al, As, Ba, Ca, Cd, Co, Cr, Cu, Fe, Mn, Ni, P, Pb, S, Sr, V and Zn was determined. The analysis of sediment grain size was also carried out. It allowed to estimate the geochemical state of the surface layer of sediment and to determine changes that occurred as a result of the intensive development of economic activities in the catchment area of the Baltic Sea in the last 100-150 years.