A new study investigates passive samplers as a low-cost option for quantifying air pollutants around concentrated animal feeding operations

To collect 30 years of data across the U.S., the National Ecological Observatory Network's sensor stations will have to withstand ice, fire, floods and drought.

A USGS study found decades-old nitrate entering a groundwater-fed stream, potentially explaining a lag time between nutrient control and results.

Compounds leaching from freshly mined rocks into mountain streams appear detrimental so aquatic insects. Virginia Tech researchers want to know why.

A water monitoring network installed after a 2005 fish kill in a California harbor meant researchers were ready when another million sardines died there in 2011.

John Lenters, a hydroclimatologist with lake observing systems from Alaska to Nebraska, talks instruments, polar bears and paddling surfboards.

A streamflow and water temperature monitoring network is helping track suitable habitat for a rare trout.

The Basic Observation Buoy is connecting students to their local waterways while training the next generation of water scientists.

Salem Harbor on the Massachusetts coast is prone to sporadic bouts of high turbidity. Researchers hope a buoy network will help them find out why.

Bloomsburg University of Pennsylvania casts its geology and geography students as data collectors on flood-prone Fishing Creek