Question

What are bio-accumulants and give examples

Answer 1

Answer:

Explanation:

Bioaccumulation is the gradual accumulation of substances, such as pesticides, or other chemicals in an organism.[1] Bioaccumulation occurs when an organism absorbs a substance at a rate faster than that at which the substance is lost by catabolism and excretion. Thus, the longer the biological half-life of a toxic substance, the greater the risk of chronic poisoning, even if environmental levels of the toxin are not very high.

for example in fish, can be predicted by models.

Answer 2

Process by which certain toxic substances (such as heavy metals and polychlorinated biphenyls) accumulate and keep on accumulating in living organisms, posing a threat to health, life, and to the environment. Also called bioconcentration, biological concentration, or biological magnification.

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