What is the cause of bioaccumulation?

Bioconcentration is a phenomenon in which individual organisms or many biological populations at the same trophic level absorb and accumulate certain elements or refractory compounds from the surrounding environment, causing the equilibrium concentration of the substance in the organism to exceed the concentration in the environment. This phenomenon is called bioconcentration.

, also called bio-concentration.

Overview of Bioconcentration: The concentration of many pollutants in organisms is much greater than their concentration in the environment, and as long as such pollutants continue to exist in the environment, the concentration of pollutants in organisms will increase with the growth and development time.

.

For a polluted ecosystem, the concentration of pollutants in organisms at different trophic levels is not only higher than the concentration of pollutants in the environment, but also increases significantly with the increase of trophic levels.

Bioconcentration, Concentration Coefficient, Bioconcentration Phenomenon, Bioconcentration is commonly expressed by the enrichment coefficient or concentration coefficient (i.e., the ratio of the equilibrium concentration of a pollutant in an organism to the concentration of the pollutant in its living environment).

In addition, some people use terms such as bioaccumulation and biomagnification to describe the phenomenon of bioaccumulation.

The former refers to the phenomenon that the bioconcentration coefficient of the same organism increases continuously at different stages of growth and development; the latter refers to the phenomenon that the bioconcentration coefficient increases step by step from low trophic levels to high trophic levels on the same chain of things.