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Definitions (335)
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environmental sanitation
Traditionally used to indicate activities concerned with the improvement of the basic environmental conditions affecting health, i.e., water supply, human and animal waste disposal, protection of food [..]
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environmental transformation
Once emitted into the environment, a chemical substance may be transported in the biosphere and undergo various types of chemical changes (WHO, 1979).
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mass mean diameter
The diameter of a particle with a mass equal to the mean mass of all the particles in the population (IAEA, 1978).
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antibody
A protein produced in body in response, and specific for, a foreign substance or antigen.
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conjunctiva
The term applied to the mucous membrane that covers the eyeball and undersurface of the eyelids.
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metabolic activation
Biotransformation of relatively inert chemicals to biologically reactive metabolites (compounds). See biotransformation.
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morbidity survey
A method for the estimation of the prevalence and/or incidence of disease or diseases in a population. A morbidity survey is usually designed simply to ascertain the facts as to disease distribution, [..]
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rate difference
The absolute difference between two rates, for example, the difference in incidence rate between a population group exposed to a causal factor and a population group not exposed to the factor:
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abiotic
This is a term used to describe anything which is characterized by the absence of life or incompatible with life. In toxicology and ecotoxicology it refers to physical (e.g. heat, sunlight) or chemica [..]
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