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Click here to Expand all. Click here to Collapse all. View Section, People - Revision Cycle. View Section, New and Changed. View Section, Preface. View Section, Table of Contents. View Section, Monographs. View Section, Identity Standards. View Section, General Tests and Assays. View Section, Solutions and Indicators. This review covers the literature up to May It is not a particularly 'readable' chapter, but presents a lot of information on the application of classical as well as the newer chromatographic techniques to the analysis of these fungicide residues.
Volume 75 in the series is a more compact presentation, reporting a conference held in Tucson, AZ, in February on the minimization of occupational exposure to pesticides during all stages of manufacture, packaging, formulation, distribution, storage and application as well as at the field re-entry stage.
The three sections of the conference dealt successively with exposure assessment, the health effects of exposure and the minimization of these effects. In addition to the 14 papers presented, the book includes the organizing committee's summary of the conclusions and recommendations that emanated from the discussion workshops held after each presentation. The result is a wide-ranging outline of the current situation, mainly from the American viewpoint, underlining problems that demand particular attention.
Some of the gaps in our knowledge and many of the difficulties of deriving the maximum benefit from pesticides without creating other problems in the way of human ill-health may be only too well known, but this small volume draws them together and provides a useful survey. Residue Reviews. Edited by F. New York, The opening contribution to the triple bill occupying the 74th volume of Residue Reviews is an extensive survey of the environmental occurrence and significance of molybdenum.
Its role as an essential trace element for plants and animals is balanced in this texf against its possible toxicity, especially to ruminants which, of all animals, seem the most sensitive both to its deficiency and to its excess. There appear to be no specific data establishing molybdenum as an essential element for man, and the evidence for its possibly beneficial effect on dental caries is conflicting.
Neither is there any clear-cut evidence of human toxicity, although a high molybdenum intake associated with low calcium and high fluoride levels may accentuate osteoporosis and other pathological bone developments. This comprehensive and useful review concludes with about references. The next paper presents a detailed but rather involved analysis of current knowledge about the cir- The halogenated dibenzodioxins and dibenzofurans, polychlorinated and polybrominated biphenyls and chlorinated naphthalenes and terphenyls comprise a group of structurally related compounds, some of which have enormous commercial value, particularly as flame-retardants, dielectrics, plasticizers and lubricants, whilst others are formed as unwanted contaminants in the production processes.
Properties that contribute to the commercial value of the biphenyls, terphenyls and naphthalenes and also characterize the dioxin and furan by-products are insolubility in water, high boiling points, thermal stability and resistance to chemical degradation. It is these same properties, together with their potential for bioaccumulation, that have made them extremely persistent pollutants.
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