Tetraethyl lead CTRL) and tetrafaethyl lead (TML) and tri- roethyl leadchloride (TriML), were found to be essentially iwntewtbgeflSc fa Sprague-Dawley rats.

Although this 1* email flgur*, It 1* still ecne 20 tlsw* larger than the concentration found In the anotaot deep vater* of tb ocean*, Aa further evidence that tetraethyl lead *ero*ol* ar* transported by th* atmosphere, the geochemist* fennd 10,000 time* nor* lead in anew sample* fro* California's lasses Volcanic batlocal *-*or* t* LIA11521 3 Park than would be exited Trca ordin&ry toll duet, and to aaounta that vould eaaily account for the excel lead found In the ocean*.

A* further svldenc# that tetraethyl lsad *e roeole nr* transported by th* atmosphere, th* geochealete fennd 10,000 tine* nor* lead in anew temple* fron California's Lassen Volcanic hat local *\ ' LIA11521 3 Park than would be exited Trca ordin&ry toll duet, and to aaounta that vould eaaily account for the excel lead found In the ocean*.

nm m -m nm i H H H iM m n iJM INOUSTftUL HVQlCNt J'OUHOATION FOUNDATION FACTS Foundation Faets is a monthly nw.tetter issued to industrial concerns holding membership In Industrial Hygiene Foundation.

A mixture containing various ^ methyl and ethyl derivatives of tetraethyl lead and tetramethyl lead.

McNab then stated that they would be interested in being brought upto-date on the subject of alkyl lead compounds lighter than tetraethyl.

McNab then stated that they would be interested in being brought upto-date on the subject of alkyl lead compounds lighter than tetraethyl.

LEAD POLLUTION PATTERSON, C.

Becondnry lead (lead content) ,, Imports, cenorot: short tons..

His work in this field began In the. very early days of mass manufacture of automobiles wlih the purpose of achieving safely and high health standards in the manufacture and use of tetraethyl lead for gasoline, The excellent, record mjilntnined In this area an he traced largely lo work performed by Dr.

Cases of tetraethyl lead poisoning are only likely to he numerous among men exposedto the vapour of highly leaded petrol for a more or less prolonged period in filling cans, and from spillage in ill-ventilated spaces.

These facts lead me to believe that we are dealing with hazards wliich are capable of producing lead poisoning; that these hazards are avoidable to a very large extent; that it Is both unwise and dangerous to the future of this industry, to permit the con tinuance of these conditions.

My reason for doing this lies in the fact that the information which we are obtaining seems to me to be of the greatest significance to the tetraethyl lead industry, and I would like for many reasons to have co-operative interest in and support of this work.

We shall probably never know just how much tetraethyl lead was In the bottom of this tank and underneath it, nor shall we be able to find out just how it got there.

When leading or discharging acrylonitrile, methyl acrylate, methyl methacrylate, ethylepe oxide, propylene oxide, vinyl chloride, vinylidene chloride, and vinyl acetate the - steam heating lines shall be blanked off leading into the tank containing these products.