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United Nations Environment Programme (UNEP) - Global Environment Monitoring System (GEMS) Water Programme, 2001; National Water Research Institute Environment Canada, Ontario, 2001
Uploaded on Saturday 25 Feb 2012
Phosphate levels in major basins
Philippe Rekacewicz, UNEP/GRID-Arendal
A comparison of the major watersheds between the two decades showed that Northern Europe and North America had lower phosphate concentrations, while the Ganges and Brahmaputra watersheds in South Central Asia had higher concentrations. Nutrient control programmes in municipal and agricultural activities may be key factors in the observed reductions in phosphate concentrations.