This dataset reflects spatial distribution of nutrients load and load of selected hazardous substances on the Baltic Sea from land based sources. The data, obtained through national monitoring programmes in 2014, were reported by Contracting Parties to HELCOM in the frame of HELCOM PLC-6 project and collected in the HELCOM Pollution Load Compilation (PLC-water) database ( http://apps.nest.su.se/helcom_plus/). The reporting was organized in accordance with the HELCOM Guidelines for the annual and periodical compilation and reporting of waterborne pollution inputs to the Baltic Sea (PLC-Water, http://www.helcom.fi/Lists/Publications/PLC-Water%20Guidelines.pdf). The dataset has been produced based on guidance by HELCOM PRESSURE and REDCORE Drafting Group.

The dataset contains following attributes:

Unique code: unique code of the Mercury source

Name: Mercury source name

Country: country in the BS catchment area

PLC sub-basin: Baltic Sea PLC sub-basin

Total annual Cd discharge: total annual discharge of Cadmium

Total annual Hg discharge: total annual discharge of Mercury

Total annual Pb discharge: total annual discharge of Lead