Document ID: chunk:federal_register_of_legislation:F2013C00288:reg:10:p4
Version: federal_register_of_legislation:F2013C00288
Segment Type: reg
Provision Reference: reg 10 (pt 4/7)
Character Range: 1131049–1134058

political information.
Health investigation levels (HILs) mean the concentration of a contaminant above which further appropriate investigation and evaluation will be required to ensure the protection of human health.
Intake is the total amount of contaminant (or dose) taken into the body by the exposure route.
Non-aqueous phase liquid (NAPL) is a chemical substance that is insoluble or only slightly soluble in water that exists as a separate liquid phase in environmental media. The free liquid phase of a chemical substance, i.e. not dissolved in water or adsorbed to soil.
Non-genotoxic carcinogen is a chemical substance that induces tumours via a mechanism that does not involve direct damage to genetic material (DNA).
Pica is a behaviour exhibited occasionally by young children and rarely by adults, characterised by the deliberate ingestion of non-nutritive substances, such as soil. Habitual or repetitive pica specifically involving soil-eating behaviour is uncommon.
Reference dose is an estimate of the daily exposure dose that is likely to be without deleterious effect even if continued exposure occurs over a lifetime. Equivalent in meaning to tolerable daily intake and acceptable daily intake.
Remediation is the cleaning up of contaminated land.
Response is the change developed in the state of dynamics of an organism, system, or population in reaction to exposure to a chemical substance.
Risk means the probability in a certain timeframe that an adverse outcome will occur in a person, a group of people, plants, animals and/or the ecology of a specified area that is exposed to a particular dose or concentration of a chemical substance, i.e. it depends on both the level of toxicity of the chemical substance and the level of exposure to it.
Risk assessment is the process of estimating the potential impact of a chemical, physical, microbiological or psychosocial hazard on a specified human population or ecological system under a specific set of conditions and for a certain timeframe.
Risk characterisation is the qualitative and, wherever possible, quantitative determination, including attendant uncertainties, of the probability of occurrence of known and potential adverse effects of a contaminant in a given organism, system, or population, under defined exposure conditions.
Risk communication is the interactive exchange of information about health and environmental risks amongst risk assessors, managers, news media, interested groups, and the general public.
Risk estimation is the quantification of the probability, including attendant uncertainties, that specific adverse effects will occur in an organism, system, or population due to actual or predicted exposure.
Risk evaluation is the establishment of a qualitative or quantitative relationship between risks and benefits of exposure to a chemical substance, involving the complex process of determining significance of the identified hazards and estimated risks to the system concerned or affected by exposure.