Is it safe to eat fish from a city lake or river regularly?
Only if the local fish advisory says it is ok. Check the water body before making local fish a regular meal.
What is in it
Fish from a city lake or river can carry mercury, PCBs, PFAS, and microplastics. The exact risk depends on the water body, the fish species, and how often your family eats it.
Fishing for fun and eating local fish every week are not the same exposure.
What the research says
A 2026 Environmental Pollution study found microplastics in edible tissues from a lake food web. The estimated daily intake was higher for children than adults.
EPA and FDA tell families to check local fish advisories when eating fish caught by family or friends. That is the right rule for city water, where contamination can vary block by block.
What to do
Search your state fish advisory before eating local catch. If the advisory says do not eat, make it catch and release.
If the advisory allows some meals, follow the serving limit. For kids and pregnant people, choose lower-mercury fish from the EPA and FDA best-choice list when fish is a regular meal.
The research at a glance
| Study | Journal | Year |
|---|---|---|
| Bioaccumulation, trophic transfer, and health risk assessment of microplastics in the food web of Wuliangsuhai Lake, China: Higher risk for children. | Environ Pollut | 2026 |
| EPA-FDA Advice about Eating Fish and Shellfish | U.S. Environmental Protection Agency | 2026 |