Bioaccumulation 01
Bioaccumulation 01 : (a) In ecology, the accumulation of toxic chemicals in living things through the consumption of food or water. [AIHA, 2000: Risk Assessment Principles for the Industrial Hygienist]; (b) Bioaccumulation is the process by which chemicals concentrate in an organism. For example, DDT concentrates in fish and birds that eat fish. This concentration effect is expressed as the ratio of the concentration of the chemical in an organism (like a fish) to its concentration in the surrounding medium (usually water). Bioaccumulation refers to the uptake of chemicals both from water (bioconcentration) and from ingested food and sediment. [ED, 2000: Environmental Scorecard Glossary]; (c) The process by which a contaminant accumulates in the tissues of an organism. [NCSU, 1997: Watershedds Glossary]; (d) The process whereby certain toxic substances collect in living tissues, thus posing a substantial hazard to human health or the environment. [SRA, 1999: Glossary of Risk Analysis Terms] [USDOE, 2000: RAIS Glossary]
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