Document 2RjJ4qd7EN5aKpyx8ZLwV5OkL

nary disease, such as soft water ecuption, lack of exercise, increased sucrose and decreased vegetable fiber intakes, raay enhance the ratio of nine to copper absorbed from the gut. This may be a mechanist! for their hypercholesterolaaic elfact. In ruminants, where both copper deficiencies and toxicities are problems in various parts of the worJ d, several advances were reported, N. F. Settle (I'loredun Research Institute, Edinburgh) described a depletion -- repletion technique, applicable to nature sheep, for assessing availability of dietary copper sources. Using this technique, Suttle demonstrated that the classical copper - molybdenum sulfur interrelationships arc of greater magnitude than heretofore thought at levels of these elements normally en countered in sheep rations, and that the site of this interaction is at the gut rather thau at the tissue level. A, G. Spais (University of Thessaloniki) re ported that dietary cyanide dexreased, and that dietary thiocyanate enhanced copper storage in lambs. G. Weiner (Animal Breeding Research Organisation, Edinburgh) found significant differences among several breeds of sheep in whole blood copper levels. Some, but not all, of these were associated with hemoglobin type. Proceedings, will full manuscripts of invited papers and extended manuscripts of contributions, will be published by Univ. Park Press, Baltimore, Md. U. S. A. Contact Dr. J. W. Suttia, Dept, of Biochemistry, University of Wisconsin, Madison, Wisconsin 53706, U .S .A . for information on proceedings TEMA 3 will be held in 1977, probably at a location in Europe. A newsletter to give tentative plans is expected in about 6 months. NSF-RANN TRACE CONTAMINANTS ABSTRACTS. Oak Pvidge llat'l Lab Series 0RNL-EIS-73-60. We have received Vol No. 1 (June 1S73) of this series, which will bo an account of work sponsored by the JfSF-RANN Environmental Aspects of Trace Contaminants Program as prepared by the Toxic Materials Informa tion Center, Environmental Information Systems Office at Oak Ridge IN. FOR THE NEXT ISSUE . UM cyL v defe ^The Environmental Defense Fund, unlike SEGH,is action oriented and one expects it to take advocacy positions on a variety of issues including trace substances and health. The purpose, of quoting below from one of their recent reports is to solicit letters to the editor of INTERFACE based on the informed opinion of SEGK members on the two issues below: 1. "As a result of successful EDF litigation, the Environmental Protection Agency (EPA) issued emission standards on April 6 for asbestos, mercury and beryl lium. The standards do not, however, provide adequate regulation of these sub stances. For example, asbestos emitted from mines, mills and construction sites is not regulated .because EPA maintains that the Occupational Safety and Health Administration and other Federal agencies should regulate such emissions. EDF main tains that although safety measures taken by such agencies may protect workers, people living near asbestos operations are not protected. EDF filed suit on May V to force EPA to review' the asbestos, mercury and beryllium standards." (EDF Letter, May, 1973, p 3) SHOULD EPA REGULATE INDUSTRIAL EMISSIONS OF ASBESTOS, Hg AND Be TO CONTROL "HALO" OR NEIGHBOR PROBLEMS? 2. "Since October 1969, EDF has been involved in regulatory proceedings and litigation in California against, leaded gasoline. Lead released into the atmos phere damages the health of many Americans. Cars burning leaded gasoline cause 90% of this pollution." (EDF Letter, May 1973, P 3) IS THERE EVIDENCE TO SUPPORT THE STATEMENT THAT, "LEAD EMITTED INTO THE ATMOSFTERE DAMAGES THE HEALTH OF MANY AMSTJCAIiS" OR IS THIS AN UNDERSTANDABLY CAUTIOUS EXTRAPOLATION FROM THE ESTABLISH ED EFFECTS OF HIGHER DOSE RATES? Please reply by Oct. 15 for consideration of your letter for publl icat ion in the Fall issue of INTERFACE. IN'jm r ACM2 {J}: 27