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Water quality

Person taking measurements in a river; another person standing with a clipboard
Posted inNews

Agricultura Sustentable Reflejada en Calidad del Agua de Cuba

Katherine Kornei, Science Writer by Katherine Kornei 18 November 20206 January 2022

Las muestras de agua de 25 ríos en el centro de Cuba están dominadas por signos de erosión de las rocas en lugar de la escorrentía de fertilizantes, según muestran investigadores que trabajan en instituciones cubanas y estadounidenses.

A coal ash dump in the foreground with SCI in the background
Posted inFeatures

An Unfought Geoscience Battle in U.S. Prisons

Kimberly M. S. Cartier, News Writing and Production Intern for Eos.org by Kimberly M. S. Cartier 10 November 202018 October 2022

Prisoners, activists, and lawyers are fighting to protect incarcerated people from pollution and the dangers of climate change. There’s a place for geoscientists in the fight too.

A USGS research team from the Geology, Minerals, Energy, and Geophysics Science Center takes measurements of hydrologic properties of burned and unburned soils in the LNU Lightning Complex Fire area in Napa County, Calif., in early October.
Posted inNews

Biggest Risk to Surface Water After a Wildfire? It’s Complicated

Megan Sever, Science Writer by Megan Sever 20 October 20206 January 2022

Whether you’re considering short-term or long-term changes to water quality after a wildfire, scientists agree that sedimentation is a big concern.

The Alaknanda River, seen from stream level, flows among mountains in northern India.
Posted inResearch Spotlights

Tracking Trace Elements in the Ganga River

by David Shultz 16 October 202016 February 2022

Levels of dissolved trace and heavy metals, which can be toxic, are highly variable across the river basin, concentrating in urban areas with high pollution but diluted by inflow from tributaries.

Aerial view of a small lake surrounded by forest
Posted inResearch Spotlights

The Lasting Legacy of Phosphorus Buried in Lakes

by David Shultz 12 August 202026 January 2023

Research at an experimental lake suggests that phosphorus inputs from runoff may affect the health of aquatic ecosystems long after external additions of the nutrient are reduced.

Charts showing how groundwater pumping in a deeper aquifer reduces its pressure and induces flow of arsenic rich groundwater from the overlying aquifer
Posted inEditors' Highlights

Arsenic Pollution in Bangladesh is Catching Up with Deeper Wells

by Marc F. P. Bierkens 3 August 20206 February 2023

Inhabitants of Bangladesh have deepened drinking water wells to avoid extracting arsenic-rich groundwater from shallow aquifers, but these may not be free from pollution either.

Map of Bangladesh showing levels of drinking water salinity
Posted inEditors' Highlights

Does Drinking Water Salinity Affect Child Mortality?

by Avner Vengosh 25 June 20206 February 2023

An association between drinking water salinity and neonatal and infant mortality in Bangladesh indicates the critical role of water salinity on child health.

Satellite image of Lake Erie with a bright green algal bloom
Posted inNews

AquaSat Gives Water Quality Researchers New Eyes in the Sky

Jon Kelvey, Science Writer by Jon Kelvey 20 May 20203 November 2022

A new data set combining sample data and remote sensing could give scientists the power to make accurate predictions at a global scale.

Toronto skyline from Lake Ontario
Posted inNews

Great Lakes Cities’ Sewer Designs Mean Waste in the Waters

by D. Rosenthal 4 May 20203 November 2021

In older cities, a single system of pipes may transport sewage and stormwater runoff. As the climate crisis brings more intense storms, urban areas like Toronto are overhauling their drainage systems.

An aerial view of an agricultural landscape
Posted inResearch Spotlights

Mapping Nutrient Inputs in the Great Lakes Basin

Aaron Sidder, freelance science writer by Aaron Sidder 25 March 202024 February 2023

A new tool links nitrogen and phosphorus applications to land use classifications to better understand where and how much of the nutrients enter watersheds in the U.S. Great Lakes Basin.

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