Document 6w33N875EdZR2EYZ1DBdoKkpR

ER-B27I E. I. du Pont de Nemours & Company Wilmington, Delaware i9830 EMPLOYEE RELATIONS DEPARTMENT HASKELL LADORATORY roR TOXICOLOGY AND INDUSTRIAL MEDICINE on Spi-ay Application of Asfj cc: Jesse Lieberman, Chief, Occupational and Radiologic Health Section City of Philadelphia September 2, 1970 Robert 0. Gorson, Professor of Medical Physics Stein Center Thomas Jefferson University 920 Chancellor St. Philadelphia, Pa. . :r- Dear Professor Gorson: In connection with my dissent to the majority opinion of the members of the Ad Roc Committee on Spray Application of Asbestos regarding the draft report that was discussed at the Fourth Meeting on August 31. 1970* you have asked that I sub mit a memorandum expressing my views. I wish to comment here with on the Specific Recommendation A: The Elimination of Spray Asbestos Material (page 7)* and on the preceding paragraphs, upon which the recommendation is based. Paragraph 5, page 4 points out that "it is difficult to ensure 100jS containment of airborne asbestos material during the spraying operation." This was established as a fact by the testimony of Dr. Boucot after visiting the site of Martin Luther King, Jr. School, and that of Mr. Wyman of General Building Contractors Association in a statement to the Committee, August 31* 1970* It Is also a fact that neither the contractors nor any public health agency has put forth the intense research effort that Is required to overcome a problem'such as this. Industrial hygiene engineering has succeeded in devising procedures for safely processing and using many potentially hazardous materials, such as beryllium, uranium ore, silica sand, lead, mercury, etc. Methods for spraying asbestos-containing insulating mate rial without emitting dangerous quantities of fibers from the site can most certainly be devised provided sufficient time and effort are expended by qualified engineering personnel. 20S BETTER THIIIOO EO R D F.TT E FI LIVING . . .THROUGH CHEMIVTPY DUP 0901487 SC-DP-03100