Figure 4 - Estimated Annual Yields of Total Phosphorus at the Nine U.S
![Figure 4 - Estimated Annual Yields of Total Phosphorus at the Nine U.S. Geological Survey River Input Monitoring Stations](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/full_width/public/thumbnails/image/Hirsch_Science_Summary_fig4.jpg?itok=UMmVk_SB)
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Figure 4 - Estimated Annual Yields of Total Phosphorus at the Nine U.S. Geological Survey River Input Monitoring Stations
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Public Domain.
Figure 4 - Estimated Annual Yields of Total Phosphorus at the Nine U.S. Geological Survey River Input Monitoring Stations
Public Domain.