Image from: http://www.fiber-girl.com/preventcancer.html
Bioaccumulation is the buildup of a chemical in an organism through different types of exposures. This buildup is due to the organism not being able to break down the chemical, or the organism is not able to break down the chemical fast enough and starts to absorb it.
More information regarding bioaccumulation:
USGS: Toxic Substances Program
Oregon State University: Toxic Facts
