Bioaccumulation

Bioaccumulation

The accumulation of a substance, such as a toxic chemical, in various tissues of a living organism.

toxin

a poison that can harm an organism

environment

the surroundings or conditions in which a person, animal, or plant lives or operates.

PCBs

(Polychlorinated biphenyls) are synthetic chemicals widely used from the 1930s to the 1970s in industrial products such as heat exchange fluids, paints, plastics, and lubricants

chemicals

atoms and molecules

hazard

A danger or risk.

disposal

the act or means of getting rid of something

contamination

The introduction of dangerous chemicals, disease, or infectious materials.

food chain

A series of steps in which organisms transfer energy by eating and being eaten

accumulate

to increase in number or amount; to pile up, collect, or gather

landfill

a place to dispose of refuse and other waste material by burying it and covering it over with soil

Adverse effects

Not helpful; harmful

exposure

to come in contact

pesticide

substance that kills rats, insects, bacteria, etc.