Does eating freshwater lake fish often put kids at extra microplastic risk?

What's actually in it

Lakes and rivers near cities collect microplastics from carpet fibers, tire dust, and plastic packaging that washes off the streets. Small fish eat tiny plastic flecks that float in the water. Bigger fish eat the small fish. Plastics build up at each step, like mercury does.

Kids eating the same fillet as a parent get more plastic per pound of body weight.

What the research says

A 2026 study in Environ Pollut tested fish across a freshwater food web and modeled dietary exposure. Top-of-chain fish carried the most microplastic. The team called out kids as the highest-risk eaters because of body weight and daily intake.

The same fish from cleaner lakes had much less, so source matters a lot.

Pick small ocean fish like sardines, anchovies, and wild salmon, which are short-lived and lower in plastics and mercury. If you eat freshwater fish, choose smaller species like trout from cleaner watersheds and skip the catch from urban lakes. Limit kid portions to once a week.