US Geological Survey scientist measuring dissolved oxygen in a stream
Detailed Description
U.S. Geological Survey (USGS) scientist measuring dissolved oxygen in a stream water sample. The scientist is part of a USGS team of scientists that are investigating the potential environmental effects of activities at an oil and gas wastewater injection facility in West Virginia. Scientists have found evidence indicating the presence of wastewaters in surface waters and surficial sediments near the facility.
Sources/Usage
Public Domain.