Document KdMV0Xnxa9D614nVBGVwEj2

Lead Development Association, 34 Berkeley Square, London W1. Telephone 01-499 8422 Cables Leado London 24 O ctober 1968 M r . D. G. Fo w le r , Lead In dustries Association Inc. , 292 M adison Aven ue, New York, N. Y. 10017, U .S. A. D ear Don, . It se e m s that trouble is brew in g for the m eet in g of the P er m an en t Co m m ission on O ccu pation al Health which is bein g or gan ised by Zielh u is an d which w ill take p lace on N ovem b er 28 an d 29. As you pr obably know, the topic un der d iscu ssio n is "Accept ab le C r it e r ia for Exp osu r e to In organ ic Le a d ". Accor d in g to r e p o r t s fr o m Ted Kin g an d Mike W illiam s, Z ie lh u is's paper ten ds to sh ow th at h aem oglobin le v e ls a r e d e p r e sse d at blood lead figu r e s w ell belpw 80 ug% 1 W hat he h as done apparen tly is a st at ist ical an aly sis of r e su lt s r epor t ed in the lit er at u r e an d fr om a n um ber of cen t r es an d of cou r se the r eliability of som e of th em m ay be qu estion able. (Mike W illiam s' recen t r e su lt s h ave been excluded, aft er con sideration ). Kin g h ow ever, aft er in itial scep t icism of Z ielh u is1 t h esis, h as r e- exam in ed the data that he h as for Vau xh all w o r k e r s durin g the t im e he w as at th e plan t an d it a p p e a r s that th ere is a m e asu r e of support for Zielh u is. I h ave ask e d Ted to sen d on to you a ph otostat of Z ielh u is' p ap er so that you can se e it at fir st h and an d be able to r e com m en d what, if an yth in g, can be done. Clear ly it would be n ice to h ave a whole m a ss of eviden ce of blood lead h aem oglobin relation sh ips which would con tradict Z ielh u is' claim s and you m ay be ab le to-lay h an ds on th is fr o m Ket t er in g, or p er h ap s the auto c o m p an ie s. In an y c a se I would a p p r e c ia t e h avin g you r ad vice a s so o n a s p o s s i b l e an d , if y ou can m a k e it , b y n e x t F r i d a y , N o v e m b e r 1, when I sh all probably be m eetin g Den n is, Ted an d Mike for a d iscu ssio n . I don't know w h eth er an ybody fr om the St at es is atten din g Z ielh u is' m eet in g. Ted th ough t th at St ock in ger m igh t h ave been in vit ed. P e r h ap s you cou ld h ave a w or d with h im . I h ave h ad an in vit ation to go a s a kin d of o b se r v e r - r e p o r t e r , sin ce I could c le ar ly not m ak e a u sefu l con tribution out of m y own exp er ien ce. H ow ever , it would be valu ab le to find out exact ly what is Mr. D.G. Fow ler Page 2 going on at fir st hand and I h ope that R o ss will agr e e . Th e d an ge r to m e se e m s to lie in two d ir e ct io n s (a) th at WHO m igh t in t er p r et t h e r e s u l t s in su c h a w ay a s t o r e c o m m e n d a TL.V f o r b lo o d l e a d at 60 ug% an d (b) t h at t h e r e p o r t s p r e se n t e d at t h e m e e t in g m a y p r o v id e th e P a t t e r so n s of th is w orld with a lot of am m u n ition . I sh all look for w ard to your reply. Yours sin cerelv. Morgan H. Davies mhd / pm 0009022