THE DISTRICT OF COLUMBIA. NINETIETH CONGRESS FIRST SESSION ON H.R. 6981, H.R. 10017, and H.R. 12232 TO PROVIDE FOR THE PREVENTION, ABATEMENT, AND AUGUST 10 AND 16, 1967 67-62378 82-615 U.S. GOVERNMENT PRINTING OFFICE WASHINGTON: 1967 RVS IN37 D5 CONTENTS H.R. 6981 (Gude), a bill to provide for the prevention, abatement, and con- trol of air pollution in the District of Columbia. H.R. 10017 (Horton), identical bill... Department of Health, Education, and Welfare: Griswold, S. Smith, Associate Director for Abatement and Control, National Center for Air Pollution Control, Public Health Services.. MacKenzie, Vernon, Assistant Surgeon General, and Deputy Director, Grant, Dr. Murray, Director, Department of Public Health. Henson, Lt. Col. William F., Assistant Engineer Commissioner. Orndorf, Roy L., Director, Department of Sanitary Engineering. 17 Fuels Research Council, Inc., John A. McGrath, executive vice president.. Geiger, Dr. Jason, chairman, Medical Advisory Committee, Montgomery County (Md.) Tuberculosis and Respiratory Disease Association Gude, Hon. Gilbert, a Representative in Congress from the State of Mary- Steuart Petroleum Co.: Counts, Richard L., president_ Via, Louis, general counsel._ MATERIAL SUBMITTED FOR THE RECORD 21 82 Contreas, Mrs. R. B., letter dated April 29, 1967, to Chairman McMillan Reprint of article entitled "Health Effects From Repeated Exposures Letter dated July 20, 1967, from Hon. Wilbur J. Cohen, Under Secre- |