Isotopic composition of nitrogen species in groundwater under agricultural areas: a review
This work reviews applications of stable isotope analysis to the studies of transport and
transformation of N species in groundwater under agricultural areas. It summarizes evidence …
transformation of N species in groundwater under agricultural areas. It summarizes evidence …
The missing nitrogen pieces: A critical review on the distribution, transformation, and budget of nitrogen in the vadose zone-groundwater system
J Xin, Y Liu, F Chen, Y Duan, G Wei, X Zheng, M Li - Water research, 2019 - Elsevier
Intensive agriculture and urbanization have led to the excessive and repeated input of
nitrogen (N) into soil and further increased the amount of nitrate (NO 3−) leaching into …
nitrogen (N) into soil and further increased the amount of nitrate (NO 3−) leaching into …
Isotopic overprinting of nitrification on denitrification as a ubiquitous and unifying feature of environmental nitrogen cycling
Natural abundance nitrogen and oxygen isotopes of nitrate (δ15NNO3 and δ18ONO3)
provide an important tool for evaluating sources and transformations of natural and …
provide an important tool for evaluating sources and transformations of natural and …
Effects of stream restoration on denitrification in an urbanizing watershed
Increased delivery of nitrogen due to urbanization and stream ecosystem degradation is
contributing to eutrophication in coastal regions of the eastern United States. We tested …
contributing to eutrophication in coastal regions of the eastern United States. We tested …
Unraveling influences of nitrogen cycling on arsenic enrichment in groundwater from the Hetao Basin using geochemical and multi-isotopic approaches
Sources and co-cycling of nitrogen species in arsenic-prone groundwater remain poorly
understood, which could affect arsenic behavior. Here, geochemical and multi-isotopic …
understood, which could affect arsenic behavior. Here, geochemical and multi-isotopic …
Ammonium transport and reaction in contaminated groundwater: Application of isotope tracers and isotope fractionation studies
Ammonium (NH4+) is a major constituent of many contaminated groundwaters, but its
movement through aquifers is complex and poorly documented. In this study, processes …
movement through aquifers is complex and poorly documented. In this study, processes …
Surface-water/groundwater boundaries affect seasonal PFAS concentrations and PFAA precursor transformations
AK Tokranov, DR LeBlanc, HM Pickard… - … Science: Processes & …, 2021 - pubs.rsc.org
Elevated concentrations of per-and polyfluoroalkyl substances (PFAS) in drinking-water
supplies are a major concern for human health. It is therefore essential to understand factors …
supplies are a major concern for human health. It is therefore essential to understand factors …
Role of anaerobic ammonium oxidation (anammox) in nitrogen removal from a freshwater aquifer
Anaerobic ammonium oxidation (anammox) couples the oxidation of ammonium with the
reduction of nitrite, producing N2. The presence and activity of anammox bacteria in …
reduction of nitrite, producing N2. The presence and activity of anammox bacteria in …
Evidence for interannual persistence of infectious influenza A viruses in Alaska wetlands
Influenza A viruses (IAVs) deposited by wild birds into the environment may lead to sporadic
mortality events and economically costly outbreaks among domestic birds. There is a paucity …
mortality events and economically costly outbreaks among domestic birds. There is a paucity …
Fate of sulfamethoxazole, 4-nonylphenol, and 17β-estradiol in groundwater contaminated by wastewater treatment plant effluent
LB Barber, SH Keefe, DR LeBlanc… - Environmental …, 2009 - ACS Publications
Organic wastewater contaminants (OWCs) were measured in samples collected from
monitoring wells located along a 4.5-km transect of a plume of groundwater contaminated by …
monitoring wells located along a 4.5-km transect of a plume of groundwater contaminated by …