Leaf collection: phosphorus reductions
![Graph showing total phosphorus before and after the implementation of a leaf collection and street sweeping program](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/full_width/public/thumbnails/image/USGS_leafcollection_phosphorus.jpg?itok=c4dAS0xK)
Detailed Description
This graph shows a significant reduction in total phosphorus in a residential neighborhood in Madison, Wis., after the implementation of a timely leaf collection and street sweeping program.
Sources/Usage
Public Domain.