Pesticides and heavy metals as food contaminants. 1978

J A Barstad

From the general pollution, contaminants spread along a variety of routes, many of which lead to our food. Pesticides and heavy metals as food contaminants have raised strong public concern and contributed to the general uneasiness associated with the pollution boom of the last two decades. Pesticides in food are predominantly residues from their application on growing crops, less often from post harvest use on stored agriculatural products, whereas heavy metals contaminate the food at various stages along the food production line. Both groups of contaminants exhibit in the number of their members a spectrum of health hazards. A few examples of these will be dealth with, and thought will be given to some features in the philosophies behind the current practices of risk assessment and management in this area. A widespread shortage of toxicological expertice maintain a level of ignorance sufficient to make risk evaluation very often a dilemma. This distressing shortcoming at least partly arises form a common neglect of toxicology as a university discipline. Some international efforts to control food contamination will also be touched upon.

UI MeSH Term Description Entries
D008670 Metals Electropositive chemical elements characterized by ductility, malleability, luster, and conductance of heat and electricity. They can replace the hydrogen of an acid and form bases with hydroxyl radicals. (Grant & Hackh's Chemical Dictionary, 5th ed) Metal
D010573 Pesticide Residues Pesticides or their breakdown products remaining in the environment following their normal use or accidental contamination. Pesticide Residue,Residue, Pesticide,Residues, Pesticide
D005506 Food Contamination The presence in food of harmful, unpalatable, or otherwise objectionable foreign substances, e.g. chemicals, microorganisms or diluents, before, during, or after processing or storage. Food Adulteration,Adulteration, Food,Adulterations, Food,Contamination, Food,Contaminations, Food,Food Adulterations,Food Contaminations
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D012306 Risk The probability that an event will occur. It encompasses a variety of measures of the probability of a generally unfavorable outcome. Relative Risk,Relative Risks,Risk, Relative,Risks,Risks, Relative

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