Residue Reviews by Eugene E. Kenaga (auth.), Francis A. Gunther (eds.)

By Eugene E. Kenaga (auth.), Francis A. Gunther (eds.)

That residues of pesticide and different contaminants within the overall setting are of outrage to every body far and wide is attested by means of the reception accorded past volumes of "Residue studies" and via the enjoyable enthusiasm, Sincerity, and efforts proven by means of the entire in­ dividuals from whom manuscripts were solicited. regardless of a lot propaganda on the contrary, there can by no means be any severe query that pest-control chemical substances and food-additive chemical compounds are necessary to enough meals construction, manufacture, advertising and marketing, and garage, but with out carrying on with surveillance and clever regulate a few of those who persist in our foodstuffs may possibly now and then conceivably endanger the general public healthiness. making sure safety-in-use of those many chemical substances is a dynamic problem, for demonstrated ones are consistently being dis­ positioned through newly constructed ones extra appropriate to foodstuff tech­ nologists, pharmacologists, toxicologists, and altering pest-control standards in innovative food-producing economies. those issues are of actual problem to expanding numbers of governmental businesses and legislative our bodies world wide, for a few of these chemical compounds have ended in a couple of mishaps from fallacious use. enough safety-in-use reviews of any of those chemical substances in step with­ sisting into our foodstuffs should not basic concerns, they usually comprise the thought of judgments of many people hugely informed in quite a few complicated organic, chemical, foodstuff technological, clinical, pharmacological, and toxicological disciplines.

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KENAGA and DOWELL (1970) believe that an unsubstantiated conclusion is drawn on the basis of the evidence presented. / A) in a single application or about a 400-fold difference in four applications did not result in a change in mortality response over the first application. The authors (HURLBERT et al. 1970) have attributed the duck mortality to an undocumented philosophy involving feeding on dying insects and zooplankton which is theorized to be independent of dosage application to the pond. The follOWing items illustrate how undocumented this philosophy remains and point out other important factors which were ignored or omitted from consideration: 1.

OBERHUE et al. (1970) studied the effects of chlorpyrifos on chicks (Gallus domesticus) under field conditions in a salt marsh area in Florida. h. The air concentrations of chlorpyrifos were matched with the brain and plasma ChE activities of the chicks. 3 to 23 {J-g. of chlorpyrifos/ cu. m. taken in various treated locations no significant depression of either brain or plasma ChE occurred compared to those of the control birds. / A (as DURSBAN M insecticide). /cu. m. No Significant brain or plasma ChE depression or mortality occurred in chicks exposed to these concentrations (OBERHUE et al.

B. N. GILBERT, and J. E. SCHLINKE: Rapid gas chromatographic method for analysis of O,o-diethyl 0-3,5,6-trichloro-2-pyridyl phosphorothioate (DURSBAN) in turkey and chicken tissues. J. Agr. Food Chern. 17, 1166 (1969). HURLBERT, S. , M. S. MULLA, J. O. KEITH, W. E. WESTLAKE, and M. DUSCH: Safety of chlorpyrifos to birds 39 Biological effects and persistence of DURSBAN@ in fresh water ponds. J. Econ. Entomol. 63,43 (1970). JOHNSON, J. , M. C. BOWMAN, and D. B. LEUCK: Response from cows fed silages containing DURSBAN residues.

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