USGS Home
Contact USGS
Search USGS
Upper Midwest Environmental Sciences Center
Home
/
Overview
/
Science Programs
/
Data Library
/
Products and Publications
/
States
/
Rivers
/
Teachers and Students
/
Links
/
Contact
/
Search
Aquatic Sciences
Nutrient Loading and Effects
Ongoing studies
Center Data Library
Principal
Investigator
Project Title
Development of regional nutrient criteria for the Upper Mississippi River Basin and US Environmental Protection Agency Region 5
William
Richardson
Denitrification and sediment ammonia in the Upper Mississippi River