Biology Online states that bioaccumulation describes a substance entering into an organism. Bioaccumulation mainly occurs through air or food intake and skin contact, but there are other ways for a substance to enter an organism. After bioaccumulation, an organism contains a higher amount of its new substance than its surroundings.
Biology Online states that the rate of bioaccumulation depends on many factors, such as the amount of substance the organism ingests, contacts or inhales. According to Biology Online, as a general rule among researchers, an organism is more likely to be saturated when the invading substance has high liquid levels.