Document OjqZoJ0ONvE3wJQ9LR44KNLp

June 18, 19$* Dr* Bradford C* Scuddor Modleal Director The Grasselli Chemical Company Cleveland, Ohio Dear ""Dr* 'geudders ' ' ' ' ' .......... . " X am sanding you herewlfeh three copies of the analyses which have been capifeed up fee the prosanti time, and you rill note that only a few remain to be dono so fcliafe Ife is possible afe presenti bo givo a brief analysts of the situation* .... h&t ibo call your attention to the fact that vq have nob yets received the pads from the respirators, and that the results on then will be of considerable importance since they will show the exposure frost a some what different angle* We should have the results on these before our data aro complete and entirely satisfactory* By way of preliminary orientation, lefc a ' point; out that the normal figures for lead Ij&v a mean figure of about; (*2) mgs* per sample of faeces, but that th normal figure sometimes goes as high as (*9) ssg* X think m are safe in arbitrarily setting th level of normality her at such a figure that any amount above {*5 ) mgs* ay be regarded as a significant and definite lead exposure* The urines of normal individuals rarely run in excess of {*06} Any figure of (*10) or over is, therefore, definitely above th normal range* As to arsenic, the con centrations in normal individuals, in our experience, rarely exceed (*0&)mgs* so that If w set (*1) as th proper level of normal, wo shall have a fairly satisfactory criterion* It Is Quite apparent from the results that there la a significant exposure to lead in the Insecticide plant and in the 2ino Oxide plant* Judging from the observations which 1 made in both'of these plants, the use of respiretore has materially reduced the hasards* I am somewhat surprised to find that respirators are as effective as the figures indicate* Despite the respirators, however* ife Is apparent from the fa cal figures that a fair proportion of the men are exponod to considerable amounts of lead* It is also apparent from the distribution of high findings in'the urine that a number of th men have been aboorbing lead in signifies amounts .'as.a consequence of their exposure* I would confidently expect that under these conditions cases of lead poisoning might 5 your part is this direction . Lot me again aay that 1 believe analyses on the dust pads will yield w r y valuable information* It is possible that there may be a correlation between the high findings on the masks and the high findings in the secretion of the men* ... ...I have turned over to Dr* Machia the conplstloa of the report of this work* and when it has been completed he will send in a bill for the work. When I return X should bo glad to go over the whole set of results with you if you wish it in order to add anything to the usefulness of the report which can be added* However* X have every confidence that Dr* M&ofel will be able to Interpret the findings as adequately as X can* viith kindest personal rgarde* . Cordially yours* HAS*IS TtofTorb'"a'*'Vralibc*,^f*1i5* Hofeet Ho copies of this letter or of the report have 'TML"rm'' boon given out Isowhero* R E 001 3 5 S 8