Document G6RGb5Yj1wqJQRObzQZQn3yEN

InternalCorrespondence cc* A. Ridlehoover R. Ahlness - Spec. Chem. - 223-6s-o4 D. D. DwortLk - Chem. Fluoro Mfg. Chemolite Center - 41-1 S. D. Sorenson - Medical, Ind. Hygiene Berv. - 220-2F,-02 F. Riehle D. Fong F. A. Ubel, M.D. - Medical - 220-2E-02 @t's put renewed emphasis on personal hygiene and igineering controls to reverse this trend. RLA - 9/19/84 To: P. F. RIEHLE - SPECIALTY CHEMICAL DIVISION (:@t,,TER From: D. E. ROACH, M.D. - MEDICAL SERVICES - 220-2E-02 rine Levels Date: August 31, 1984 41-1 Since our meeting on the latest results of Building 15 organic fluorine levels, test results have been distributed to Bldg. 15 employees. In addition, we have now re-sampled Bldg. 15 workers ,Lor updated orpanic fluoi@@inemeasurement . . The tests results that were reviewed at our meeting seem to substantiate a trend that has been developing over the past 12-18 months - @ tendency for these levels in a number of people to no longer show the _preV3.OUS -pattern of decl"ine-,in fact. a fa-irnumber are now demonstrating an increase in blood fluorine levels. @andling procedures, proper use of protective equipment, showering, etc. may obviously be important factors in the changes being seen. Unfortunately, our sampling had not allowed sufficient time to elapse since you initiated a ma@or program to review personnel handling of fluorochemicals. Therefore, our most recent testing will of great interest. However, unless we see some evidence of improvement in this last batch of tests from Bld @. 15, we must view tl@i-spresent trend with serious concern. It is certainly possible that vitri steady and concentrated production of these surfactants in Bldg. 15, and despite our Eontrols, exposure opportunities are providing a potential- u@take of fluorochemicals that exceeds excretion capabilities of the body. If this is true, additional protective measures will be needed. I am ericlosing some copies of the slides that demonstrate the above situation. As soon as we receive the recent test sampling, we will t with you. D E R)c@rt Attachments 40 C rew A 35 30 *it 25 20 10 5 d4 % 'o f 4'Fg' f-9 -77 1-978 9,7,9- 1-9,8-0- 1181 198 2 578 C rew 40 35 30 25 .2-0 "Owe* 10 1976 1977 1978 1-979 1980 1981 1982 40 C rlmvCv 35 30 25 44% ON I 10 Volvo% 1976 XV!7 Opel, YO*79 8,C) Sfal 19e2 3/83 1-1/83 5,