The biological sequestering of a substance at a higher concentration than that at which it occurs in the surrounding environment or medium is known a?

Answer:The biological sequestering of a substance at a higher concentration than that at which it occurs in the surrounding environment or medium

OR

The accumulation of chemicals in the tissue of organisms through any route, including respiration, ingestion, or direct contact with contaminated water, sediment, and pore water in the sediment

OR

Progressive increase in the amount of a substance in an organism or part of an organism which occurs because the rate of intake exceeds the organism's ability to remove the substance from the body