Document bBp1VVgavGGnXgp5qNdwv0Rbg

R. 0. Gorson (Cont'd.) Page 3 September 2, 1970 Page 6, Paragraph 9 I choose to withhold at this time an active dissent from the draft statement that ''it is prudent for public health officials to assume that there is no level of concentration of airborne asbestos fibers below which adverse effects will not occur in population groups chronically exposed." There was evidence furnished to the Committee that asbestos fibers, like every other toxic agent, can be tolerated at some level greater than zero concentration without adverse response. , Reference may be made to the reprint entitled "Asbestos and Health in 1969, " which was furnished to the Committee members. It is by George W. Wright and appeared in the AMERICAN REVIEW OP RESPIRATORY DISEASE, Vol. 100, No. 4, pp. 467-479, October 1969. There is definitely no occasion for dissent from the statement which follows the above: "the committee endorses the consensus of many experts that every reasonable method should be exercised to limit the discharge of asbestos fibers into the environment from all sources." SPECIAL RECOMMENDATIONS: A. ELIMINATION OP SPRAY ASBESTOS MATERIAL Acceptance of the statements made above would argue for the addition, following parts 1 and 2 of this recommendation, of a statement similar to the following: *';unless the prospective prime contractor will furnish to the City of Philadelphia a detailed plan of procedure, acceptable to the City, whereby emissions beyond the site will be con trolled to the limits expressed in Recommendation C (2) and will give assurance that a sealant coat will be applied over the insulating material on those surfaces which are to become a part of an air supply system." Thank you for this opportunity of adding these remarks concerning my dissent to the record. Very truly yours, JFM/rlm // James P. Morgan {/ Consultant Industrial Hygiene DUP 0901489