This research provides a new DNA-based tool that can be used...

This research provides a new DNA-based tool that can be used by Great Lakes beach managers to test the water quality in the morning and make same day decisions on beach warnings or closing - often before people even go into the water to swim. This tool is an excellent real-world example of how EPA is working to protect the health of people. We can provide them with useful, practical information with which to make decisions that affect their lives and health.