The sea region data series are calculated as the average of annual mean concentrations for river monitoring stations in each sea region. The data thus represents rivers or river basins draining into that particular sea. Only complete series after inter/extrapolation are included (see indicator specification). The number of river monitoring stations included per sea region is given in parentheses.
EEA standard re-use policy: unless otherwise indicated, re-use of content on the EEA website for commercial or non-commercial purposes is permitted free of charge, provided that the source is acknowledged (http://www.eea.europa.eu/legal/copyright). Copyright holder: European Environment Agency (EEA).
At the office, encourage your colleagues to re-use the other side of paper and print less by archiving their emails and attachments. You can also try and create paperless habits. Some studies show that office paper consumption is rising by 20 % per year and web-based technology is actually increasing the printing of documents. On average each worker uses about 50 sheets of A4 per day. Must you print?
More green tips