PB HLTH 150B Lecture Notes - Lecture 3: Exposure Assessment, Public Health, Exposure Science
22 Oct 2018
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Document Summary
1920"s - physicians and engineers/chemists collaborated to discover causes of occupational diseases. Methods were developed to measure toxic chemicals in the air of mines and factories. 1950"s to 1970: initially focused on toxic chemicals and particulate matter in urban air and, somewhat later, in drinking and indoor air. Divide between occupational sources (industrial hygiene) and ambient and indoor sources (exposure science) Shift from understanding causes of disease to risk assessment and compliance. Environmental epidemiology continues to mature as key public health science. Exposure: contact between a chemical and a person or organ. Dose: amount of chemical that enters a person or organ after crossing an exposure surf. Endogenous: (internal exposure) hormones, reactive oxygen species, lipid peroxidation, flora, etc . Quantitative estimation of exposure received by population over a period of time surface ation, gut time. Quantitative estimation of exposure received by population over a period of time. Classification of exposure status relative to other members of a population (high l.
