Bio Accumulation

Bioaccumulation is the increase in concentration of a substance in living organisms as they take in contaminated air, water, or food. As bigger animals eat smaller animals, the level of contamination in the food is added to the level of contamination already in their body. Methylmerecury is more absorbed easily by bacteria and small plants. These bacteria and plants are eaten by small fish, which in turn are eaten by larger fish. By the time a fish eating bird or mammal eats the larger fish. The concentration of Methylmerecury in the fish can be up to million times higher than in the surrounding water. Many counties still use the chemicals that have been proven to bioaccumulate. We may use toxins on land, but they go through the soil to the groundwater and into the ocean. All persistent toxins eventually end up in ocean food chains. The following problems could cause:  Reproductive failure  Birth defects  Immune system disorder  Behavior and learning disorder  Death