Leaf collection: seasonal results
![Table showing the seasonal mean concentrations of phosphorus and nitrogen from a leaf collection and street cleaning study](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/full_width/public/thumbnails/image/USGS_leafcollection_resultstable.jpg?itok=1c77RD1o)
Detailed Description
Seasonal mean concentrations of phosphorus and nitrogen in the control and test catchment during the calibration and treatment phase of a leaf removal and street cleaning study in Madison, Wis.
Sources/Usage
Public Domain.