Datasets About Order by Relevance Name Ascending Name Descending Last Modified Go 1 dataset found Groups: Sustain Water Resources Openness: 3 Countries: MDG Filter Results Global - Nitrate-nitrite in Surface Water Globally gridded dataset of nitrate-nitrite in surface water for the years 1992-2010, monthly observations. Data is available at the 0.5x0.5 degree gridcell level. Units are... CSV