Science and Products
Oxygen levels, dissolved minerals among factors responsible for high concentrations of radium in untreated water from aquifer that underlies six states
Editor’s note: this news release will be updated online with more information on the streamgage records being set in Florida as it becomes available
When a major storm is on the horizon, the USGS uses its water monitoring, coastal change, mapping, and modeling expertise to help prepare for, respond to, and recover from hurricanes and tropical storms.
One hundred small streams in the Midwest were tested for pesticides during the 2013 growing season and found to contain, on average, 52 pesticides per stream
Larger-than-average low and no oxygen area may affect the region’s shrimp fisheries
Low- and no-oxygen area threatens crabs, oysters, fish
Decades or longer may be needed to fully assess the effects of unconventional oil and gas production on the quality of groundwater used for drinking water in Arkansas, Louisiana, and Texas
New USGS assessment provides fresh insights into nation’s brackish groundwater inventory
USGS provides a long-term look at changes in the quality of our nation’s rivers and streams
Groundwater, which flows out of sight through aquifers beneath our feet, is one of the Nation’s most important natural resources. In recognition of National Groundwater Awareness Week, March 5–11, 2017, here’s an opportunity to put your knowledge of this vital resource to the test!
The new table includes both standard and conventional atomic weights values to clarify that many atomic weights have natural variation and to provide single values for chemical education use
Shrinking Number of Long-term Monitoring Sites Could Hamper Scientists’ Ability to Measure Recovery of Impaired Streams
Consistent, national-scale and long-term water-quality monitoring of the Nation's rivers and streams has declined, in some cases, by more than half over time