A U.S. Geological Survey chemist evaporating sample extracts

A U.S. Geological Survey chemist evaporating sample extracts in laboratory hood to concentrate pesticide residues

Detailed Description

Organic Chemistry Research Laboratory — Sacramento, California. USGS chemist working with samples in a laboratory hood

Details

Image Dimensions: 1024 x 501

Date Taken:

Location Taken: CA, US

Credits

U.S. Geological Survey