Bioconcentration
EPA ExpoBox Terminology
Glossary and Key Word List
Definition: Direct transfers of the chemical from the surrounding environmental medium into the plant or animal (e.g., a chemical that is transferred from soil into a plant through its roots); for animals, it does not account for uptake by ingestion; for a fish, bioconcentration of a substance in the water includes direct uptake from water through its gills.
Bioconcentration
Aquatic Biodiversity Glossary
Glossary and Key Word List
Definition: The accumulation of a chemical in tissues of an organism (such as a fish) to levels greater than in the surrounding medium in which the organism lives.
bioconcentration
Thesaurus of Terms Used in Microbial Risk Assessment
Thesaurus
Definition 1: The net accumulation of a substance by an organism as a result of uptake directly from an environmental medium (e.g., net accumulation by an aquatic organism as a result of uptake directly from ambient water, through gill membranes or other external body surfaces). [EPA 2004]
Definition 2: The tendency of a chemical to accumulate in a living organism to levels in excess of the concentration in its surrounding environment. [AIHA 2000]
Bioconcentration
Terms of Environment
Glossary and Key Word List
Definition: The accumulation of a chemical in tissues of a fish or other organism to levels greater than in the surrounding medium.
Bioconcentration
Waste and Cleanup Risk Assessment Glossary
Glossary and Key Word List
Definition: A process by which there is a net accumulation of a chemical directly from an exposure medium into an organism.
Bioconcentration
Ecological Risk Assessment Glossary of Terms
Glossary and Key Word List
Definition: Bioaccumulation is the general term describing a process by which chemicals are taken up by a plant or animal either directly from exposure to a contaminated medium (soil, sediment, water) or by eating food containing the chemical. Related terms are bioconcentration in which chemicals are absorbed by an animal or plant to levels higher than the surrounding environment; and biomagnification, in which chemical levels in plants or animals increase from transfer through the food web (e.g., predators have greater concentrations of a particular chemical than their prey).
Bioconcentration
Drinking Water Technical & Legal Terms
Glossary and Key Word List
Definition: The accumulation of a chemical in tissues of an organism (such as fish) to levels that are greater than the level in the medium (such as water) in which the organism resides.
Bioconcentration factor
BCF
EPA ExpoBox Terminology
Glossary and Key Word List
Definition: The ratio of the chemical concentration in the animal (e.g., fish) or plant to the chemical concentration in the surrounding environmental media (e.g., water, soil).
Bioconcentration Factor
BCF
Pesticides Reregistration Glossary
Glossary and Key Word List
Bioconcentration Factor
BCF
Hazard Ranking System Glossary
Glossary and Key Word List
Bioconcentration Factor
BCF
Environmentally Preferable Purchasing (EPP) Glossary
Glossary and Key Word List
Definition: Ratio of the concentration of a chemical in an organism to the concentration of the chemical in its surrounding aqueous environment. BCF values are surrogate measures of the bioaccumulation potential of a chemical in organisms in the environment.
bioconcentration factor
BCF
Thesaurus of Terms Used in Microbial Risk Assessment
Thesaurus
Definition: The concentration of a substance in tissue of an organism divided by the concentration in an environmental medium (e.g., the concentration of a substance in an aquatic organism divided by the concentration in the ambient water, in situations where the organism is exposed through the water only). [EPA 2004]
Baseline Bioconcentration Factor
Baseline BCF
EPA EV-Regulatory Activities-Regulatory Quantities
Taxonomy
Definition: For organic chemicals, a BCF that is based on the concentration of freely dissolved chemical in the ambient water and takes into account the partitioning of the chemical within the organism; for inorganic chemicals, a BCF that is based on the wet weight of the tissue. [40 CFR Appendix B to Part 132 (CFR 2013)]
Bioconcentration
EPA EV-Biological Substances-Human/Animal Systems & Processes
Taxonomy
Definition 1: In which chemicals are absorbed by an animal or plant to levels higher than the surrounding environment.[Ecological Risk Assessment Glossary of Terms]
Definition 2: "A process leading to a higher concentration of a substance in an organism than in environmental media to which it is exposed (after WHO, 1979)." - International Union of Pure and Applied Chemistry, 1993 [USGS Toxic Substances Hydrology Program Definitions]
Definition 3: Net accumulation of a substance by an aquatic organism as a result of uptake directly from the ambient water through gill membranes or other external body surfaces. [40 CFR 132.2][40 CFR Appendix B to Part 132]
Definition 4: Accumulation of a chemical in tissues of an organism (such as a fish) to levels greater than in the surrounding medium in which the organism lives. [Aquatic Biodiversity Glossary]
Definition 5: The net accumulation of a substance by an organism as a result of uptake directly from an environmental medium (e.g., net accumulation by an aquatic organism as a result of uptake directly from ambient water, through gill membranes or other external body surfaces). [EPA 2004][Thesaurus of Terms Used in Microbial Risk Assessment]
Definition 6: The tendency of a chemical to accumulate in a living organism to levels in excess of the concentration in its surrounding environment. [AIHA 2000][Thesaurus of Terms Used in Microbial Risk Assessment]
Definition 7: Direct transfers of the chemical from the surrounding environmental medium into the plant or animal (e.g., a chemical that is transferred from soil into a plant through its roots); for animals, it does not account for uptake by ingestion; for a fish, bioconcentration of a substance in the water includes direct uptake from water through its gills. [ExpoBox Terminology]