DNA analysis of water samples can indicate sources of pollution.

USGS hydrologist preparing a water sample for DNA analysis.

Detailed Description

Anna McKee of the SAWSC, Norcross, GA, prepares DNA from water samples to test for bacteria that indicate sources of fecal contamination. Understanding the sources of contamination can help target mitigation and outreach efforts.


Image Dimensions: 4032 x 3024

Date Taken:

Location Taken: US