Thompson recommended supplement to "Lead in the Atmosphere."

To return to compliance you must: Submit certification of distribution of lead consumer notices for lead monitoring results at each location where a sample was collected.

February 3, 1967 LEAD INDUSTRIES ASSOCIATION.

Kone..;;)* of these men, nor any other persons whom we have ever found, have ever given us reason to believe that lead can be absorbed out of commercial leaded gasoline as the result of skin content.

Louis Lead & Oil Works, St.

It is - essentially the lead owned by customer* and hold or stored at smelter, refinery or warehouse on tho last day of tho month.

Ray Subject: Medical Study, Tetra-ethyl Lead Address: /Miami / Address: Miami Date: ,January 3 1950 Sometime in the very near future our Medical Department, working with the Kettering Laboratory of Cincinnati, will make a complete study of certain mechanical personnel for possible lead contamination.

I have spent the greater part of my professional and: scientific life in - the Investigation of lead poisoning, and perhaps more, specifically, in the study of .the physio logical arid pathological behavior' cf lead in the -.animal organism including man, with some special attention to some of the organic compounds of load, principally tetx'aethyl lead.

This was useful in estimating the health risk due to elevated blood lead.

Pb/100 Grams - O.O7 (Dithizone) Uhe lead concentration -in the fclcod is at the intermediate lev;el denot ing lead absorption vhich may .dr may. .not 'be associated virh symptomatology, ihe "urinary .lead: concentration is. at' the up_ er normal, -ie.vel'-, vhich. suggests that -the lead exposure may be on ine sal's side

The results in this case in both tho urine and faeces fall within the limits of the lead excretion of supossedly normal individuals* They cannot be said therefore to be .significant* This simply leaves us so far as the diagnosis of load poisoning is concerned in exactly the same position as we were before, namely that of complete dependence upon clinical observations* The results are a s .follows rine - 3720 cc* -- 0.41 mgs lead aeees -dry weight- 18,15 i&rams -- 0,25 rags.lead The latter figure calculated in terms of milligrams of lead per gram of ash is equivalent to 0*09 mgs.

tank of one of your company's anes are available, and it seems best that these reports bo forwarded to you for appropriate handing* A notation has come to me today through one of the representatives of Ethyl Corporation that Mr* Morris of your company has been inquiring about these results, and no doubt he will wish to be informed about them* It will be noted that the lead content of those samples is quite low* The concentration of tetraethyl lead is negligible, while the total lead content as represented by that "extractable by acid'* is so low as to have little significance from the point of view of hazard* Undoubtedly if a large quantity of scale and duet, containing such a concentration of lead were to be suspended in the atmosphere it could give rise to come hazard under conditions of prolonged exposure, but the risk of lead exposure fpom this source is certainly not very great* It appears that seme of your company*s employees have been apprehensive about their exposure to lead* #- KE n - \J V/ \) 1,!

At first glance it would seem to me that If the present maximum quantity of TEL allowed per gallon of gasoline was originally established as the safe limit above which volatisation of lead out of gasoline could create an atmospheric hazard, then the handling of a gasoline containing even small quantities of lead compounds of higher volatility is immediately going to create unsafe conditions.

The so called cases of lead poisoning which have been reported by certain investigators are not cases of lead poisoning at all, but rather are suggestive evidences of the existence of the threat of poisoning.

The inquiring Dutch Boy --each month he asks two dealers a question The Question: "Does Dutch Boy white-lead sell readily?"