USGS scientist measuring sediment pH
![USGS scientist measuring sediment pH](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/full_width/public/thumbnails/image/pH%20measurement_0.jpg?itok=WK2AQzdP)
Detailed Description
USGS scientist measuring sediment pH in a sample taken from a tributary of the Maumee River in Ohio
Sources/Usage
Public Domain.
USGS scientist measuring sediment pH in a sample taken from a tributary of the Maumee River in Ohio
Public Domain.