Document ID: chunk:federal_register_of_legislation:F2013C00288:reg:10:p2
Version: federal_register_of_legislation:F2013C00288
Segment Type: reg
Provision Reference: reg 10 (pt 2/7)
Character Range: 1125562–1128640

lifetime.
Carcinogen is a cancer-causing chemical substance/agent.
Chemical of potential concern (COPC) is a chemical substance that is potentially site-related and whose data is of sufficient quality to be judged as potentially causing an adverse health effect.
Chemical substance means any organic or inorganic substance, whether liquid, soil or gaseous.
Chronic exposure is a continuous or repeated exposure contact between a chemical substance and a target.
Clean-up level is a concentration of contaminant in soil or water derived for the purpose of providing an acceptable standard for remediation. May be risk-based or modified by considerations of feasibility, practicality, acceptability, timescale and cost.
Concentration is the amount of material or chemical substance dissolved or contained in unit quantity in a given medium or system.
Conceptual site model (CSM) is a description of a site including the environmental setting, geological, hydrogeological and soil characteristics together with nature and distribution of contaminants. Potentially exposed populations and exposure pathways are identified. Presentation is usually graphical or tabular with accompanying explanatory text.
Contact volume is a volume containing the mass of chemical substance that contacts the exposure surface.
Contaminant is any chemical existing in the environment above background levels and representing, or potentially representing, an adverse health or environmental risk.
Contamination means the condition of land or water where any chemical substance or waste has been added as a direct or indirect result of human activity at above background level and represents, or potentially represents, an adverse health or environmental impact.
Critical effect is the adverse effect(s) judged to be the most appropriate for determining the tolerable intake.
Data quality objectives (DQOs) involve the establishment of the amount, nature and quality of data required to complete a specific risk assessment.
Dose is the total amount of a chemical administered to, taken up by, or absorbed by an organism, system, or population.
Doseresponse curve is the graphical representation of a doseresponse relationship.
Doseresponse is the relationship between the amount of chemical administered to, taken up by, or absorbed by an organism, system, or population and the change developed in that organism, system, or population in reaction to the chemical substance.
Effect is change in the state or dynamics of an organism, system, or population caused by exposure to a chemical.
Expert/professional judgement is the opinion of an authoritative person on a particular subject.
Exposed population comprises the people who may be exposed to the contaminant. Synonymous with 'receptor'.
Exposure assessment is the evaluation of the exposure of an organism, system, or population to a chemical (and its derivatives).
Exposure is the concentration or amount of a particular chemical that reaches a target organism, or system, or population in a specific frequency for a defined duration.
Exposure