| Impact ID | 6996 |
| Impact Type | Human Health |
| Study Type | Anecdotal |
| Study Location | N/A |
| Impact Description | The extreme dense mats of Egeria densa can cause drowning by entanglement. The risk would be greatest during highest biomass levels. |
| Reference | 42097 |
| Great Lakes Region | No |
| Cost | |
| Location | |