Incluye bibliografía e índice: páginas 137-144

1. Pesticide regulations and residue problems in Poland.. 2. Interaction of pesticides with aquatic microorganisms and plankton.. 3. The photochemistry of halogenated herbicides.. 4. Tolerances of pesticide residues in Czechoslovakia.. 5. Terminal residues of pyrethrin-type insecticides and their synergists in foodstuffs.. 6. Acaricide residues on citrus foliage and fruits and their biological significance.. Subject Index

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That residues of pesticide and other "foreign" chemicals in food­ stuffs are of concern to everyone everywhere is amply attested by the reception accorded previous volumes of "Residue Reviews" and by the gratifying enthusiasm, sincerity, and efforts shown by all the in­ dividuals from whom manuscripts have been solicited. Despite much propaganda to the contrary, there can never be any serious question that pest-control chemicals and food-additive chemicals are essential to adequate food production, manufacture, marketing, and storage, yet without continuing surveillance and intelligent control some of those that persist in our foodstuffs could at times conceivably endanger the public health. Ensuring safety-in-use of these many chemicals is a dynamic challenge, for established ones are continually being dis­ placed by newly developed ones more acceptable to food tech­ nologists, pharmacologists, toxicologists, and changing pest-control requirements in progressive food-producing economies. These matters are of genuine concern to increasing numbers of governmental agencies and legislative bodies around the world, for some of these chemicals have resulted in a few mishaps from improper use. Adequate safety-in-use evaluations of any of these chemicals per­ sisting into our foodstuffs are not simple matters, and they incorporate the considered judgments of many individuals highly trained in a variety of complex biologrcal, chemical, food technological, medical, pharmacological, and toxicological disciplines. Inglés

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