Denitrification, the reduction of the nitrogen (N) oxides, nitrate (NO3−) and nitrite (NO2−), to
the gases nitric oxide (NO), nitrous oxide (N2O), and dinitrogen (N2), is important to primary …

We reviewed published studies from primarily glaciated regions in the United States,
Canada, and Europe of the (1) transport of nitrate from terrestrial ecosystems to aquatic …

Seasonal hypoxia in the northern Gulf of Mexico has been linked to increased nitrogen
fluxes from the Mississippi and Atchafalaya River Basins, though recent evidence shows that …

Knowledge of headwater influences on the water‐quality and flow conditions of downstream
waters is essential to water‐resource management at all governmental levels; this includes …

Riverine nitrate N in the Mississippi River leads to hypoxia in the Gulf of Mexico. Several
recent modeling studies estimated major N inputs and suggested source areas that could be …

Many ecosystems are influenced simultaneously by multiple stressors, and the
consequences of stressors are often unpredictable on the basis of knowledge of single …

Agricultural watersheds in the upper Midwest are the major source of nutrients to the
Mississippi River and Gulf of Mexico, but temporal patterns in nutrient export and the role of …

Photodegradation may be the most important elimination process for cephalosporin
antibiotics in surface water. Cefazolin (CFZ) and cephapirin (CFP) underwent mainly direct …

A meta-analysis was conducted on 136 data sets of denitrification rates (DR) recorded both
during the period of highest water temperature and monthly in five types of aquatic …

A variety of low-cost carbonaceous solids have been successfully tested in bioreactors
designed for nitrate treatment. In many agricultural and wastewater settings, however, such …