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Water quality

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.

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

Sustainable Agriculture Reflected in Cuba’s Water Quality

Katherine Kornei, Science Writer by Katherine Kornei 23 March 20206 January 2022

Water samples from 25 rivers in central Cuba are dominated by signs of rock weathering rather than fertilizer runoff, researchers working at Cuban and American institutions show.

The Sun sets over the banks of the Chobe River.
Posted inNews

Análisis Climáticos Para Una Mejor Predicción de Brotes de Diarrea

Rachel Crowell, Science Writer by Rachel Crowell 12 March 202016 July 2025

Investigadores han encontrado nuevas conexiones entre las condiciones climáticas del fenómeno “La Niña” y la enfermedad más letal para los niños a nivel mundial.

Water channel through marsh grasses in Galveston, Texas
Posted inOpinions

New Clean Water Act Rule Leaves U.S. Waters Vulnerable

by Adam S. Ward and R. Walsh 11 February 202021 December 2022

A revised definition of which waters can be protected from pollution by the federal government ignores established science.

The Sun sets over the banks of the Chobe River.
Posted inNews

Using Climate Studies to Better Predict Diarrhea Outbreaks

Rachel Crowell, Science Writer by Rachel Crowell 31 January 20209 September 2024

Researchers have found new connections between La Niña climate conditions and the leading killer of children worldwide.

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