| Impact ID | 8807 |
| Impact Type | Water Quality Benefit |
| Study Type | Observational |
| Study Location | Field |
| Impact Description | A year after the closure of a paper mill on a stream in Michigan, Nasturtium officinale was one of the few found growing downstream of the polluted site. |
| Reference | 42551 |
| Cost | |
| Location | Portage Creek, Kalamazoo, Michigan, USA |