Nitrogen Isotope Ratios of Synthetic and Organic Sources of Nitrate Water Contamination in Spain

Evaluation of the origin and fate of nitrate in the Abbotsford Aquifer using the isotopes of15N and18O in NO3−

Leonard I. Wassenaar · Applied Geochemistry · 1995 · 465 citations

Hydrogeology, Engineering, Environmental Geochemistry +4

Fertilizer Nitrogen: Contribution to Nitrate in Surface Water in a Corn Belt Watershed

Daniel H. Kohl, Georgia Shearer, Barry Commoner · Science · 1971 · 292 citations

Biogeochemistry, Precision Agriculture, Relative Enrichment +13

Use of Variations in Natural Nitrogen Isotope Abundance for Environmental Studies: A Questionable Approach

R. D. Hauck, W. V. Bartholomew, J. M. Bremner et al. · Science · 1972 · 80 citations

Isotope Analysis, Biogeochemistry, Environmental Studies +5

A preliminary assessment of sources of nitrate in springwaters, Suwannee River basin, Florida

Brian G. Katz, H.D. Hornsby · Antarctica A Keystone in a Changing World · 1998 · 18 citations

Groundwater Quality, Hydrogeology, Organic Geochemistry +13

Use of Variations in Natural Nitrogen Isotope Abundance for Environmental Studies: A Questionable Approach

R. D. Hauck, W. V. Bartholomew, J. M. Bremner et al. · Science · 1972 · 12 citations

Isotope Analysis, Biogeochemistry, Environmental Studies +5