C. Liu,
C. Kroeze,
A.Y. Hoekstra,
W. Gerbens-Leenes,
Version 1 of Dataset published 2014 via UNESCO-IHE Institute for Water Education
Calculated Water Pollution Levels (WPL) in the world's river basins, WPL_2000N - the water pollution level related to N for year 2000 and WPL_2000P - the water pollution level related to P for year 2000.