Document 65YNM0rRgoEbY0Rx2epNJy2D1

b cc: D r . A* Hehce Dr _._G.._F ._Kir b y Mr . M. ? . Murdock Mr . S . T. P r u it t Mr . M. A. T a y lo r Mr . F . P . Fa m e 16, 19S1 Hr . H. D. Bo y le , As s is t a n t Ch ie f Co ca , a t io n a l H e a lt h Pr ogr am Div is io n o f Gp ccia l Se r vice s Dep ar tm en t c f H e a lt h , Ed u ca t io n and H e ife r s Fa ch in gt o n 2 5 , D i s t r i c t o f Colu m b ia Su b je c t : Dom estic: TBL Use - IQoO Doer H r . Do y le : In accor dance n it h th e r ocssm n n lotion s o f P u b lic He a lth e r vico P u b lica t io n y7 1 2 , e n t it le .! "P u b lic He a lt h As p e ct s o f la cr e a s in g T e t r a e t h y l Load Con tyiat in Motor F u e l ," t h e E t h y l Co r ear a t io n r e p o r t s t h e fo llo w in g in fc r n a t x o n w it h r e s p e c t t o Go n e o t ic t e t r a - e t b y l load use d u r in g t i e ca le n d a r ye a r I>o0 : . 1 . Ave r a ge TSL co n t e n t o f a u t o m o t ive g a s o lin e , 1.2-S- c il/ g a llo n 2 . Es t im a t e d DDL need an a u t o m o t ive g a s o lin e , 4l<? m illio n pounds 3. Es t im a t e d TEL u sed in a v ia t io n v a s e lin e , 35 m illio n pounds I n a r r i v i n g a t t h e e st im a t e s g iv e n i n it e m s 2 und 3, Bu r e a u o f M in e s ga solin e - dc-rcrccd d a t a '..'ere used a f t e r e x c l u s i o n - o f n a p h t h a s. C-n t h e l a . .is of- ca r :; vv-, ,;:/ j f o r t h e p a s t fe w y e a r n , i t was assum ed t h a t v ' . 5, : o f t h e cu t e r :- :t iv o g o o . l i n n and 99. 8p o f t h e a v i a t i o n gar;oil.-.-.- v,, o t r e a t e d - ..it;: t e t r a e t h y l l e a l . The Bu r e a u o f A i n a s ' d a t a - e r e t a k e n f r a . ; t i . , i r m on t h ly r e p o r t s on & 50- s t a t e b a s i s and 'a r e s t i l l aobject t o r e v isio n . The a ve r a ge TEL co n t e n t o f d o m e ct ie a u t o m o t ive g a s o lin e , an giv e n in it e m 1 , i s a w e igh te d va lu e d evelop ed fr om E t h y l's m on th ly s u r ve ys o f g a s o lin e q u a lit y a t s e r v ic e s t a t i o n s . The Decem ber igoO su r ve y t h ick , ia e n clo s e d in clu d e d a ch a r t a t t h e b ottom o f p age 2. ch ew in g a ve r a ge TBL co n t e n t s m o n t h ly fo r t h e p e r io d fr o m December 195S t h r o u gh December 19-50. Ve r y t r u l y yo u r s 221C/ JP m n clcsu r c: .. M. 2 . C o l l i n s , Manager Mar ketin g An a lys is A Pla n n in g Decem ber lySO Ga s o lin e Q u a lit y Su r ve y M /u .He c H J v 4- l<^ _ KH 0003259 nZ i t r ,A * K