CONTENTS Bayley, Dr., Ned D., director, Science and Education, Department of Agriculture; accompanied by Dr. T. C. Byerly, assistant director_-_- Kotin, Dr., Paul, director, National Institute of Environmental Health Turner, James, Center for Study of Responsive Law, Washington, D.C.. Page 18 468 Wellford, Harrison, Center for Study of Responsive Law, Washington, 6 Letter of April 30, 1970. 468 Westing, Dr. Arthur H., chairman, Biology Department, Windham Col- 76 Johnson, Dr. Julius E., vice president and director of research, the Dow Chemical Co.; accompanied by Etcyl Blair, director Dow Agricultural Chemical Research, V. K. Rowe, director, Dow Toxicological Laboratory, and George Lynn, director, Government Regulatory Relations, the Steinfeld, Dr. Jesse, Surgeon General, Department of Health, Education, and Welfare; accompanied by Dr. David Gaylor, Dr. Diane Courtney, Verrett, Dr. Jacqueline, Food and Drug Administration, Department of ADDITIONAL ARTICLES, LETTERS, AND STATEMENTS A reporter at large: Defoliation, article from the New York Times____ 107 467 Decontamination of Pesticides in Soils, article from Residue Reviews 384 104 Determination of 2,3,7,8-Tetrachlorodibenzo-p-dioxin in 2,4,5-Trichloro- 1965 367 DuBridge, Dr. Lee A., Director, Office of Science and Technology, Depart- ment of Health, Education, and Welfare, statement_-- Effect and Persistence of Herbicides Applied to Soil in Puerto Rican Forests, Electron Microscopic Alterations in the Liver of Chicken Fed Toxic Fat, 303 Growth of Crops in Soils After Herbicidal Treatments for Brush Control in 45 Hays, Harry W., Ph. D., Director, Agricultural Research Service, Pesticides Regulation Division, U.S. Department of Agriculture, letter of Novem- Herbicides in Soils, article from Agricultural Research Service Injection of Chemicals Into the Yolk Sac of Fertile Eggs Prior to Incuba- Lawrence, J. F., Brig. Gen., U.S. Marine Corps, Deputy Assistant to the Light and Electron Microscopic Observations in Macaca mulatta Monkeys Lipson, Dr. Steven, chief, Division of Epidemiology and Surveillance, McCarthy, Hon. Richard D., U.S. Representative from New York, state- Probe Into Use of Herbicide, hearings. Metcalf, Hon. Lee, U.S. Senator from Montana, statement- Note on an Improved Cleanup Method for the Detection of Chick Edema Nutritional Adjuncts, Chick Edema Factor. III. Application of Micro- Occupational Intoxication Occurring in the Production of Chlorophenol Occurrence of the Chick Pericardial Edema Factor in Some Oleic Acids 57 330 278 328 467 314 17 466 321 265 241 219 Ryan, M. J., acting director, Office of Legislative Services, Department of 126 41 Steinfeld, Dr. Jesse L., Surgeon General, Department of Health, Education, and Welfare, letter of January 21, 1970_. 38 Studies of the Chick Edema Disease, article from Poultry Science- Studies of the Chick Edema Factor. II. Isolation of a Toxic Substance, Studies of the Chicken Edema Disease Factor, article from the Journal of 207 Studies on the Metabolism of Chick Edema Factor: Distribution in Chick 311 Technic for Testing Acnegenic Potency in Rabbits, Applied to the Potent 249 Teratogenic Evaluation of 2,4,5-T, article. U.S. Shows Signs of Concern Over Effect in Vietnam of 9-year Defoliation Use of the Chicken Embryo in the Assay of Aflatoxin Toxicity, article 98 102 290 123 EFFECTS OF 2,4,5-T ON MAN AND THE ENVIRONMENT TUESDAY, APRIL 7, 1970 U.S. SENATE, COMMITTEE ON COMMERCE, SUBCOMMITTEE ON ENERGY, NATURAL RESOURCES, AND THE ENVIRONMENT, Washington, D.C. The subcommittee met, pursuant to notice, at 10 a.m., in room. 1318, New Senate Office Building, Hon. Philip A. Hart, presiding. Present: Senators Hart, Inouye, and Baker. OPENING STATEMENT BY THE CHAIRMAN Senator HART. The committee will be in order. Permit me a brief opening statement. For the Subcommittee on Energy, Natural Resources, and the Environment, I welcome those present for the first of these 2 days of hearings we are holding to examine the effect of the herbicide known as 2,4,5-T on man and the environment. I suggest that what is at stake at these hearings is virtually impossible to evaluate at this moment, in light of the uncertainty about this frequently used pesticide. The questions which have been raised recently concerning the hazards of 2,4,5,-T and related chemicals may in the end appear to be much ado about very little indeed. On the other hand, they may ultimately be regarded as portending the most horrible tragedy ever known to mankind. What does emerge clearly from this uncertainty is that we must take steps to eliminate it. In view of the potential disaster that could befall us or conceivably has insidiously already befallen us -absolutely no delay is tolerable in the search for answers to the questions posed. It is with the hope that Congress will be able to play an active role in that search that these hearings have been scheduled. Although the title of the hearing refers to the effects of 2,4,5,-T alone, it should be made clear early in the game that other similar chemicals may give rise to similar problems for the environment. Witnesses should feel free, therefore, to address themselves to any such chemical to the extent that it bears upon the central problems at issue. Our first witness was to have been Congressman Richard McCarthy, of New York, but unfortunately he will not be able to be Staff member assigned to this hearing: Leonard Bickwit, Jr. (1) |