Nitrate pollution is of considerable global concern as a threat to human health and aquatic
ecosystems. Nowadays, δ 15 N/δ 18 O-NO 3− combined with a Bayesian-based SIAR model …

The Tibetan Plateau is sensitive to climate change, but the feedbacks of nitrogen (N) cycling
to climate conditions on this plateau are not well-understood, especially under varying …

Nitrous oxide (N2O), a potent greenhouse gas, is produced in rivers through a series of
microbial metabolic pathways. However, the microbial source of N2O production and the …

Abstract Elevated riverine nitrate (NO 3−) levels have led to increased eutrophication and
other ecological implications. While high riverine NO 3− levels were generally ascribed to …

Ammonia-oxidizing bacteria (AOB) and archaea (AOA) as well as complete ammonia
oxidizers (comammox) aerobically catalyze ammonia oxidation which plays essential roles …

Abstract River nitrate (NO 3–) pollution is a global environmental issue. Recently, high NO 3–
levels in some pristine or minimally-disturbed rivers were reported, but their drivers remain …

Abstract Nitrate (NO 3−) is a major trigger for river eutrophication. While efforts have been
made to understand the anthropogenic NO 3− pollution in rivers, the role of background NO …

Identifying the sources and transformations of riverine nitrate plays a critical role in mitigating
nitrogen enrichment of river networks. Several previous studies have used δ 18 O-NO 3− to …

Oxygen isotope anomaly of nitrate aerosol (∆ 17O-NO3−) contributes to understanding the
atmospheric nitrogen chemistry in the polar oceans. Here,∆ 17O-NO3− of the aerosol …

The exploration of the sources and fate of nitrate in surface waters along with the evaluation
of the implementation of environmental regulations is essential for preventing and …