Document zzX4ybm1NMrww1NB0DQg222aR
(19)
August 31/ 19^3
Dr. L. E. Edelman, Director of Research, The lake Erie Chemical Company, 2200 Scranton Road, Cleveland 1>, Ohio.
Dear Dr. Edelmani
I have the results on the last series of analyses on the samples
of urine of your two associates and yourself. These results"are
quite satisfactory from my point of view with one exception, and
therefore, I shall not report them tc you at this time. With
the one exception indicated above, there is no suggestion of any
significant exposure to either lead or arsenic. I believe that
the exception is the result of the contamination of a sample of
urine, and therefore I am calling it to your attention. The
second sample obtained by
11*90 A. M., 8/6/-+3,
is very high in its lead cont^a^^ou^?ithin normal limits in
respect to arsenic. The sample taken the day before by the same
man was normal with respect to its content of both lead and
arsenic. Therefore, unless Mrhad seme quite signifi
cant accidental exposure in the c?arTymorning of August 6, thi3
second sample was certainly contaminated inadvertently. If there
was any accidental exposure to tetraethyl lead on the day in
question, I should appreciate it if you would report it to me in
some detail. However, if my suspicion iscorrect, this should
simply be the occasion for advising Mr.ag well as your
other associates of the necessity for extremeT^great care in the
collection of these samples. We have occasional contamination
In the Laboratory, for even under the most ideal conditions the
opportunity for lead contamination is great. It may he, therefore
that this was our error. However, it is worth while to have
everybody take great precautions, since otherwise we shall have
less useful information that we would wish to have.
4;
; Cordially yours.
RAK ef
Robert '. iCehoe, M. D
A number of urine samples submitted by the Lake Erie Chemical Company, Cleveland, Ohio, for lead and arsenic analyses.
Analysis
Humber
Date and Hour Collected
10A-26 89 1+3A-2690
10;00 a.m. 8-5-1+3 10:00 a.m. 8-6-I+3
I4.5A-269I
1+3A-26 92
12; 15 p.m. 8-5-l|.5 11:30 a.m. 8-6-1+3
4.3A-2693 I1.3A-269J4.
12:00 Noon 8-5-I+3 2:00 p.m. 8--6 --i+3
Name
Mg. Pb/L. Mg. As/L.
0.09 0.065
0.0)+ 0.03
0.05
0.03
1.1
0.06
1.2 (Check)
0.10 0.07
0.01+ 0.01+
^Undoubtedly represents contamination.
HE 0013730
Samples Received: S-9"l)-3 Samples Reported: 8-25-1+3
N16566.01
A number of urine samples submitted by the Lake Erie Chemical Company, Cleveland, Ohio, for lead and arsenic analyses.
Analysis Number Date and Hour Collected
45A-2689 43A-2690
10:00 a.m. 8-5-43 10:00 a.m. 8-6-43
43A-2691 I0A-2692
12:15 p.m. B--5---U-5 11:30 a.m. 8-6-43
43A-2693 I1.3A-2694
12:00 Noon 8-5-45 2:00 p.m. 8-6-43
Name
Mg. Pb/L. Mg. Aa/L.
0.09 0.065
0.04 0.03
0.05
0.03
*1.1
0.06
*1.2 (Check)
0.10 0.07
0.04 0.04
Undoubtedly represents contamination.
KE 0013731
Samples Received: 8-9-43 Samples Reported: 8-25-43
A number of urine samples submitted by the Lake Erie Chemical Company, Cleveland, Ohio, for lead and arsenic analyses.
Analysis
Humber
Date and Hour Collected
10A-26B9 434-2690
10*00 a.m. 8-5-43 10:00 a.tn. 6-6-43
14.54-2691 I4.5A-2692
12 s 15 p.m* 6-5-45 11*50 a.m. 6-6-43
I4.3A-2693 4.54-269)4.
12:00 Uoon o-p-43 2:00 p.m. 0-0-43
Hame
Mr , Pb/L.
0.09 0.065
0.0k
G.05
0.05
0,05
#1.1
0.06
#1.2 (Check)
0.04 O.OI4.
^Undoubtedly represents contamination.
HE <0 i . 9
Samples Received: 8-9-43 Samples Reportedt 8-25-45