Leaf collection: study results
![Graphs showing total and dissolved phosphorus and nitrogen before and after the implementation of a leaf collection program](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/full_width/public/thumbnails/image/USGS_leafcollection_results.png?itok=xjpsHvD_)
Detailed Description
Mean monthly concentration of nutrients (phosphorus and nitrogen) measured in stormwater runoff in the control and test catchments during the calibration and treatment phases of a leaf removal and street cleaning study in Madison, Wis.
Sources/Usage
Public Domain.
Public domain.