Document OEvoV7okx8nOndXVJEM6MadRw

$M 3? (Pc. 9 i/| SHELL OIL COMPANY : Pa*j: n5& DEER PARK MEG COMPLEX To* DEER PARK MANUFACTURING COMPLEX DEC 15 1977 GENERAL MANAGEi5*-THIS COPT TOR i pT! lp^5r MANUFACTURING COMPLEX MANAGERS MARTINEZ WILMINGTON NORCO SUpT f NVCONS REFINERY MANAGERS ANACORTES ODESSA/CINIZA (2) WOOD RIVER CHEMICAL PLANT MANAGERS DENVER MOBILE EL PASO PRINCETON GEISMAR WOODBURY MARIETTA date DECEMBER 12, 1977 from GENERAL MANAGER MANUFACTURING subject ASBESTOS - MEDICAL MONITORING SUPT OPER RES In 1972, we advised that all employees whose jobs required them to rk regularly with asbestos or asbestos-containing products which exposed em to TWA levels above 1 f/cc should be included in the Corporate Medical SUPTOPEROlf rogram. On June 28, 1977, the U.S. Court of Appeals for the District of olumbia ruled that the asbestos standard requires medical examinations for those in occupations exposed to airborne asbestos "in any measurable oncentration". A letter from Dr. Joyner, along with a legal opinion from MGR CHEM 4 rynn Aurelius, suggest a change in our 1972 advice. 'f%2sk On this basis, we are revising our 1972 guidance to include in the ijiedical surveillance program all employees who are regularly exposed to sbestos fibers greater than 5 microns long in concentrations above G.l f/cc r.or 8 hour TWA. We believe this is a reasonable level for defining "exposure1 " uantitatively at this time. The intent is to include people who work with isbestos-containing products on a regular basis. For example, candidates for xposure monitoring would include the maintenance man who repairs asbestosontaining insulation or the one who cuts it from around valves on a regular jasis. We anticipate that this new protocol will require you to identify r :hose jobs in which people may be "regularly" exposed, conduct appropriate -nonitoring to determine the exposure level and include in the medical oisejTCH monitoring program those exposed above 0.1 f/cc TWA. Please provide to MGh Kttt tiS"Dr. Joyner a list of employees who are included in the medical monitoring ~ Trogram. D P M C -0 5 2 6 1 SUP! LNC/CON It has been shown that people who both smoke and work with asbestos are several times more at risk to develop lung cancer than those who work J7ith asbestos, but don't smoke. People who are identified as having asbestos exposure should be fully informed about this synergistic effect. MCH tMr'fttl C MGR COMM REl Return to Central File LAM 008769 2 Should you have any questions, please contact the Manufacturing Safety and Health Department. Attachments cc - Messrs. R. E. Joyner, M.D. H. L. Kusnetz M. B. Slomka, M.D. W. A. Carper/ter, Jr DPMC-05262 LAM 008770