Document y4MRDovb9BLDxpnkjBxnabRr

M aterial: Subm itted: Required: U r i n e and b l ood sam pl es By D r . Si e g e l , Aluminum Ore Company, East St . L o u i s, I l l i n o i s Lead A n al y ses 86ZL M Name * A n al y si s Number 47A-1 1 8 8 i|.7A-1 1 9 2 J4.7A-H 86 I4.7A-II9O 47A-1 1 8 4 URINE Volume m l. Sp .G r . 100 1 .0 2 0 7 4 1. 0 17 100 1 . 0l 6 100 1.0 19 ^7 1.0 2 5 M g./ L it er 0 .2 0 0.09 O.Oij.5 0 .1 2 0 .1 0 A n al y si s Humber I 4.7A - I I 89 47A-1 1 9 5 4 7A - 118 7 4 7A - 119 1 4 7A - 118 5 BLOOD Sp ect r o gr ap h i c W eight Grams M g./ 100 g. 5 .9 19 .2 0.06 0 .0 4 8 .4 0 .0 5 2 0 .8 0 .0 8 2 0 .0 0 .0 5 D ithizone W eight Grams M g. 100 g. 19 .8 O.O75 -- 0 .0 2 5 1 5 ,4 -- 0 .0 4 5 0 .0 7 2 0 .1 0 .0 4 5 ot e: The two cases above where no w ei gh t s ar e i n d i c at ed u n d er t h e d i t h i z o n e m et hod, b ot h met hods w er e r u n from t h e one sam p l e, si n ce t h e secon d b l ood sam ple i n each case was t oo sm al l f o r p r op er an aly si s. ' Sam ples C o l l ec t ed : Feb r u ar y 20 and 2 1 , 19i|-7 Sam ples Recei v ed : Feb r u ar y 2 5 1947 -r Sam ples Rep o r t ed : M arch 1 , 1914-7 The r e su l t s I n d i c at e t h at Bo sch en r ei t h er and H u l b u r t h ave had r ecen t l ead exp osu r e at p o t e n t i a l l y h azar d ou s l e v e l s . E l l i o t t , H offman and H u r l ock h ave had ei t h er n e g l i g i b l e or no o ccu p at i o n al l ead ex p o su r e, as judged by t h e bl ood l ead co n cen t r at i o n s. (The u r i n ar y l ead co n cen t r at i o n i s su b j ec t t o g r eat er v a r i a b i l i t y t han i s t h at o f t h e b l o o d , b u t t h e u r i n ar y r e su l t s gi v en h er e ar e com p at i b l e p h y si o l o g i c a l l y w i t h t h o se on t h e b l o o d . ; r r- <M in o o o ki * i D r. Si eg el , Aluminum Ore Com pany, East t . L o u i s, I l l i n o i s . Dear* D r . S i e g e l : I am sen d i n g you h er ew i t h t h e r e su l t s w i t h an i n t e r p r e t a t i o n o f t h e a n a l y si s o f b l ood and u r i n e sam p l es o f f i v e em pl oyees o f Aluminum o r e Company, t o g et h er w i t h an i n v o i c e t o co v er t h e co st o f the an al y ses . V er y t r u l y y o u r s, ef En c. Rob er t A ."'K eh oe, M. D . 0005278 N 7298.01 Aluminum Ore Compan; East St . L o u i s, * I llin o is. M arch 4 , 194-7 A 11en i i o n .* Dr . Si e g e l A n al y si s o f Bl ood and U r i n e f o r Lead u. V J > K 0005279