USGS scientist preparing plates for yeast bioassay screening
By Environmental Health Program
2017 (approx.)
![U.S. Geological Survey (USGS) scientist preparing plates for yeast bioassay screening of surface water extracts](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/full_width/public/thumbnails/image/ctt_iwanowicz_at_hood_1024_0.jpg?itok=-7SiwaSD)
Detailed Description
USGS scientists working at laboratory fume hood
Sources/Usage
Public Domain.