Study separates human and hydrological causes of nitrogen loss in Mississippi Basin
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Study separates human and hydrological causes of nitrogen loss in Mississippi Basin

Scientists at the University of Illinois Urbana-Champaign can now differentiate between human-derived and hydrological contributions of riverine nitrogen pollution in the Upper Mississippi River Basin. The advancement, published in Environmental Science and Technology, sets the stage for more nuanced policy and management of nitrate and nitrite, the nutrients that degrade drinking water quality and cause oxygen-starved "dead zones" in the Gulf each year.