PHAR 303 Lecture Notes - Lecture 2: Occupational Exposure Limit, Dosimeter, Hirsutism
15 Feb 2018
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Additives in pesticides, active ingredients in drugs, and drug additives (e. g. preservatives, stabilizers) are well regulated: most foods and food additives are not well regulated. Canada has a domestic substances list for chemical management: this includes the most common substances likely to be produced in large volumes, and that are most likely to be used in industry and be on the market. This plan consists of three phases: cmp 1, 2, and 3: the number of substances on the list decreases with each phase, to focus action on a smaller number of chemicals. There have been no new chemicals added since 2005 even though hundreds of new ones have been introduced in this time period. Exposure = intensity x frequency x duration i. e. : how much x how often x how long: these components need to be looked at when assessing toxicity. The levels of exposure will determine response.
