Document 2j3XVVYe6jvoog3dGGNy157oa

THOMAS W. GEORGES, JR., M.D. SECRETARY OF HEALTH DEPARTMENT PF HEALTH P. O. BOX 90 HARRISBURG 17120 April 10, 1967 Robert A. Kehoe, M.D. Professor Emeritus of Occupational Medicine University of Cincinnati Eden and Bethesda Avenues Cincinnati, Ohio 45219 Dear Dr. Kehoe: Thank you for your very informative letter of April 3, 1967. I have sent copies of your letter to the other members of the Commission's Council of Technical Advisors on Ambient Air Quality Criteria. I have also sent a copy of your letters of March 13, and April 3, 1967 to Dr. Hardy, Dr. Sturgis and Dr. Goldsmith. Dr. Goldsmith's letter of February 21, 1967 and Dr. Sturgis1 letter of February 13, 1967 were included in the packet of supplemental material to the Commission's hearing, since these letters were directly related to Dr. Goldsmith's letter of February 9, 1967 and the letters were received just prior to the packet of material being sent to our printing shop. Your letter of February 6, 1967 and the attached material (which was included in the supplemental packet) has been of assistance in reviewing the hearing testimony. Your letters of March 13 and April 3 will also be considered in preparing the Department's recommendations to the Pennsylvania Air Pollu tion Commission. I believe that this information should be circulated to all interested parties. After criteria are adopted by the Commission, they will be subject to continuing review by the Commission's Council of Technical Advisors. Robert A. Kehoe, M. D 2 April 10, 1967 Therefore, it is anticipated that there will be periodic re visions (similar to revisions of the Threshold Limit Values) of these criteria. Thank you again for your assistance and interest. Sincerely, -T'^ Victor H. Sussman, Director Division of Air Pollution Control c.c. Dr, Allen D. Brandt Hon. L. H. Bull Hon. H. B. Charmbury Mrs. Ruth S. Donahue Mr. Harold F. Elkin Hon. Thomas W. Georges, Hon. William J. Hart Hon. Clifford L. Jones Dr. H. H. Schrenk Mr. Louis C. Smith Mr. Thomas J. White Dr. David M. Anderson Mr. Herbert J. Dunsmore Mr. Philip Hershey Mr. Jean J. Schueneman Dr. Hardy Dr. Goldsmith Dr. Sturgis Jr., M.D. K 001310 5