Document RpbaJvRNGYJ59QKgkZOB30joV
March 9, 1950
Dr. Ward. C. Meyers ,' Medical Service, Kimble Glass Company, Division cf Ovens-Illinois Glass Go.,
1510 h . Westwood Avenue, Toledo, Ohio.
Dear Doctor Meyers :
me results- of these analyses, individually and collectively,
demonstrate that the exposure to lead on the part of these m e n 'is
being kept within generally safe limits. duo average or the
results on the urine Is 0.11 rag. per liter, which is 'satisfactory
as an expression of group exposure..
...
On the other hand, ihere are three men whose, blood camples.show . , - namely,
ncr-ed that tvo of -these men have given evidence cf relatively high
concentrations of lead in their urine, while the third (Qpe-racz)
ic just a little below -(o .10 m g . per liter),the average.value for
the group - The latter5 no doubt, is an expression cf variation
in lead concentration in different samples of the urine> of the
same individual, the possible range here being from 0.02 to 0-24
ox tiicreaboutc, if small camples were taken. repeatedly tiirougncui.
come considerableperiod of time '(several daysf. (The conceiitra--
tion of lead in the blood Is much less variable from hour to hour
or from day to day, and except for its relatively narrow range In.
association with different degrees of severity of exposure and
absorption, there would be little point In determinations on the
urine.j , /
: '
Any individual whose blood yields a concentration in excess of 0.0/5 of lead per Io .j grams by either method of analysis, should
be looked at with some suspicion, and efforts should be made to reduce the exposure of such an individual by environmental control, or by his exercise of greater care on his part If there :1c evidence that personal habits may be at fault.
Cordially youx-s,
RAIL ef C.C.: Mr. William G. Hazard
0003726
Robert a . Kehoe, M. D.
N 6701
Sources
Materials Submitted; Required;
Employees of Kimble Glass, Division of Owens-Illin Glass Company, P.O. Box #1035* Toledo1, Ohio
Urine and Blood
2-16-50 by Dr. Ward C. Meyers, MedicalService
Lead Analyses
i ..
URINE
Name
Analysis Number
Volume ml*
Sp*Gr*
.jt . -.
50A-2123
80
5A-2125
100
' 50A-2381 ..wit.
50A-2127
100
50A-2129
100
50A-2131
100
5PA-2133
100
5A-2135
103
50A-2137
100
50A-2139
58
50A-2lla ... ...
50A-21J.3'
100 100
50A-21.5
68
1 ,0 1 8 1 ,0 2 1 1 .0 0 2 1 .0 2 0
1.017 1.019
1 .0 2 1
1.019 I.OI8
1 .0 2 0
1.023 1.021
1 .0 2 1
BLOOD
Mg. Pb/ Liter
Analysis Number
Spectrographic
Weight Mg. Pb/ Grams 1 0 0 g.
Q.llt
50A-2 1 2 J.
.0.13.. 50A-212
3*3^ 15.2
0 .0 6
0.05
0 .0 6 0 .1 1 0 .0 2
0.15 0.15
50A-2ll|.7 50A-2128 5OA-2 1 3 O 50A-2132 50A-213I.
7 .9 .
1 6 .8
1 5 .I
1 0 .0
1 5 .0 ..
0^05 _ 0.055
0 .0 6
0.0it5 O.0 6
0 .0 2
50A-2136 llt.2
0.055
0 .1 0
50A-2138 .I5 .O.. 0,075
0 .1 1
50A-21.0 I8 .6
0.055
0.11
50A-21k2 1 6 .2
0.0lt5
0.1? 0.13
50A-21I.. __ 1 5 .t 50A-2llt6 lit*9
0 .0 6
0.055
Samples Reported; 3**^-~5