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bioaccumulation
(redirected from bioaccumulative)

   Also found in: Dictionary/thesaurus, Wikipedia 0.01 sec.
bi·o·ac·cu·mu·la·tion (b--kymy-lshn)
n.
The increase in the concentration of a substance, especially a contaminant, in an organism or in the food chain over time.

bioaccumulation
process producing an increase in the concentration of chemicals (usually toxins) in the tissues of organisms with each increase in the trophic level in the food chain. Examples include chlorinated hydrocarbons which reach their greatest concentrations in predatory birds and pelicans, and ciguatera in which the toxins are concentrated in large predatory fish such as gropers, barracudas and mackerel.


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Its persistent, its bioaccumulative and its toxic sort of the big three.
To gain "priority chemical" status, a chemical must be "identified by an authoritative governmental entity" as being known as a "carcinogen, a reproductive or developmental toxicant or an endocrine disrupter"; a "persistent, bioaccumulative and toxic"; or "very persistent and bioaccumulative.
These chemicals are listed by the EPA, as persistent toxins (persistent bioaccumulative toxins, PBTS), meaning they do not readily breakdown and remain in the environment for years.
 
 
 
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