ML20133L498
| ML20133L498 | |
| Person / Time | |
|---|---|
| Site: | 07000036 |
| Issue date: | 12/16/1960 |
| From: | Zeitlin F MALLINCKRODT, INC. |
| To: | Price H US ATOMIC ENERGY COMMISSION (AEC) |
| Shared Package | |
| ML20133G976 | List:
|
| References | |
| FOIA-96-343 NUDOCS 9701220043 | |
| Download: ML20133L498 (23) | |
Text
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3IALLINCKRODT CIIE3IICAL WORKS
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F*iNE CHEMICALS FOR MEDICIN AL. PHOTOGRAPHIC s-3 QE ^ " "
- ANALYTICAL ANO INDUSTRIAL PURPOSES 2L5^**:
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g December 16, 1960 gg/
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Mr. H. L. Price, p'
Director, Div. of Licensing & Regulation, F urag,,g U. S. Atomic Energy Commission,
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Washington 25, D. C.
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Dear Mr. Price:
On February 17, 1960 we requested a clarification of the word " incident" in paragraph 20.h03 of 10 CRF 20. We had particular reference to the exposum of individuals in routine operations to airborne radioactive dust concentrations in excess of the maximum allowable concentration of 5x10 " micro-curies per milliliter for uranium.
On July 28, 1960 the requested clarification was received stating that it is the Commission's intent that notice of all overexposures, from routine operations or otherwise, should be submitted.
Table I presents data indicating exposures of various personnel to dust concentrations in excess of the==vi==
allowable concentration. The data represent integrated air-borne dust concentrations in microcuries per al of air based on statistical studies in the area and calculated from the hours worked on various jobs in the indicated week.
For purposes of clarity, exposures have been calculated on the basis of a stand-i ard LO hour week, even thouCh in one period (May and June,1960) the personnel were working a six day, h8 hour week.
This of 1
course, results in an apparent concentration 20% greater than that actually observed.
The data presented is for 1959 and the first three quarters of 1960.
In those weeks where no figures are shown, there were no calculated overexposures to any personnel in the plant. The figures shows represent the integrated dust con-centration for each individual idio was overexposed.
For comparison, the total number of men in the working force for 1960 has been shown.
FLOYD96-343 PDR
Paca Two--
tab 1E I INTEGRATED AIRBORNE URANIUM DIST EIPOSUIES GREATrR WAN 5x10~** MICROCURIES PER MIILILITER M)R 1959 Keek 1
2 3
h 5
6 7
8 9
10 11 12 13 lh (ner F;r w re 6.0 5.3 57 6.0 5.7 53 6.8 6.8 5.7 6.0 6.0 6.8 6.9 6.h 57 5.7 9.1 6.h 5.3 57 6.3 6.8 5.7 5.7 6.h 6.9 5.7 Veek 15 16 17 18 19 20 21 22 23 2h 25 26 27 over
-hxiosure G.7 6.0 57 6.9 6.9 5.7 5.h
- e. 3 t..o
- 6. ')
6.6 6.6 51 t..6 5.7 5.7 6.0 i.1 S.]
5.7 i
t..'
7.2
( '. */
D.9 7.9 28 through 52 Feek over Exporure 0
Page Threo--
TABLE I (continued)
INTEGRATED AIRBOItiE URANIUM IIIST EIPOSURES
~
GREATER DIAN 5xlO MICROCURIES PER NTr. TATTER FOR FIRST HIREE QUAR 7DS 1960 Week 1
2 3
h 6
7 8
9 10 11 12 13 1h Total Working Force 51
$1 53 52 51 52 52 h8 h8 n
S 50 53 53 Over Exposure 75 7.1 7.8 lb.8
-11.6 9.6 5.8 5;. 7 S.h 12.6 11.1 11.6 7.5 6.h 6.7 b
Pago Four -
TABLE I (continued)
INTEGRATED AIRBORNE URANIUM IUST EIPoSURES GREATER IMAN 5x10-MICH0 CURIES PER MIILILITER FOR FIRST HIRES QUARTERS 1960 t
iieek 15 16 17 18 19 20 21 22 23 2h 25 26 27 Total Working Force 56 56 57 56 57 56 56 56 5h L8 h8 h5 h5 '
over Exposure 28.2 28.2 23.5 28.2 2h.6 6.5 5.7 5
Ih.h 20.5 20.5 2h.6 2h.6 65 65
- 5. !
2h.6 20 5 20.5 2h.6 12.8 5.1 6.5 5-13.8 21.5 11.5 2h 5 10.8 6.8 52
- 5.,
10.8 23.5 23 5 10.1 10.8 6.5 6.5 5
17.2 9.o 19.1 2h.6 2h.6 6.5 30.8 20 5 9.0 21.5 2h.6 5.h 2h.6 20 5 23 5 2h.6 2h.6 5.h 26.1 20.5 17.2 22.3 lb.B 5.h 17.8 21.5 20.5 20.5 19.5 5.h 17.8 10.5 20.5 28.2 16.9 5.6 28.2 20.5 10.8 2h.6 28.2 10.8 21 5 19.5 19 5 10.8 10.8 23.5 19.5 18.1 28.7 20.5 9.0 10.8 9.o 20 5 20.7 i
Page rive TABLF: I (continued)
INTEGRATZDAIR30RNEURANIUMDUSTFEPd3t[RES GREATER 7EAN $x10-MICROCURIES PliR MIILILITER FOR FIRST DIREE QUART 1 IRS 1960
~
Week 28 29 30 31 32 33 3h 35 36 37 38 39 LD -
k1-Total
'Morking Force h3 h3 h2 h3 h3 h3 h3 hk h2 h2 h2 h2 Over Exposure
< >. 5 3h.7 65 6.5 6.5 4.7 6.5 6.5 6.5 65
- .9 6.5 6.5 6.5 t,. ;-
e 9
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i Mr. H. L. Price--
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t As would be expected, overexposures are sporadic and can be i
closely correlated with new or revised plant operations.
In the period from week 10 to 26,1959, a new operation was being developed, the startup of the pellet facility.
This was a costpletely new installation involving a process somewhat~different l
from previous practice. Initial training operations showed minor g
i overexposures which were corrected as training pmgressed.
It was believed that the major problems had been solved, at least for a relatively low production rate.
At this time we also undertook our first sizeable quantity of l
fully enrided metal. Here, again, only minor overexposures were v
observed and these were eliminated by improved training and practices i
on the part of the operating personnel.
l Six overexposures over a six week period resulted in the blending (compositing) facility during this time,.
Rese were caused by de-fective doors on the dust enclosures and were eliminated by the repair of the equipment. No recurrence has been observed to date.
i In the period from weeks 1 to 11,1960, overexposums were again /
observed in the pellet facility, this time in a period of very high production rates. It is believed that the practices which had been adequate at low levels of production were not entirely suitable for seven day operation at a high production rate. To correct this sit-l untion the entire press feed process was modified to eliminate a portion in which dust generation was high and containment was difficult.
At this time a new centerless grinder had recently been installed and it was discovered that entrained grinder coolant fluid was discharging airbome radioactive material into the open air space. Installation of a new dust enclosure on the grinder, as well as a new dust enclosure on the number two pass eliminated further overexposures in-this area.
In the period from weeks 20 to 214,1960, we encountered the most
{
difficult airborne dust problem in the history of the plant.
Bis problem was primarily concerned with the operation of the high enrich-ment metal facility at a very high production rate. S e practices j
which had been developed at low production levels on a five day week were found to be inadequate and a great amount of effort was required 2
to reduce airborne dust levels. In a first attempt to eliminate the j
problem, additional makeup air was supplied to the non by increasing l
the speed of the air supply blower.
Bis did not result in satisfactory improvement and a larger motor was installed which allowed the blower to j
be operated at its nav4=P rate. When this did not result in satisfact-j ory air velocities into the dust enclosures, an opening was made in the l
roof of the building and an additional makeup air supply was installed.
The air velocities at the face of the dust enclosures were raised from
[
a minimum of 100 feet / min. to 150 feet / min.
In addition to the increase in face velocities, a new hood was installed for closing and purging metal reduction bombs and for pickling metal biscuits. Improved handling practices were developed sus as the elimination of certain weighing i
~ -
Faee Seven--
s i
Mr. H. L. Price--
operations which had been perfomed in the working area; all bottles 1
were washed on the outside before they were brought from the dry boxes into the working area and housekeeping was impmved.
The entire area 1
was wet mopped at frequent intervals, including the floor, overhead, pipes and duct work. The air supply ducts were opened and wet mopped inside to remove dust which apparently had entrapped airborne radio-active material fm m the recycle air.
The development of these changes and modifications did not occur simultaneously and a considerable period was required to modify, test and re-modify.
Impmvements in process are still being made to further reduce airbome dust concentrations in this '
area.
The problem was further aggravated by the simultaneous startup of a facility to manufacture high enriched UOs shot. Thus, it became necessary to detennine sich of the two pmcesses was contributing the major portion of airborne dust and eliminate insofar as possible the contribution from that source.
'Ihen the second process was investigated to determine necessary changes in that pa cess.
Process changes here
. included t e installation of a hand operated press in a hood, install-h ation of sieves in a dry box and prevention of removal of contaminated bottles into the working area. A continuing pmgram of reduction of airborne dust is in effect in this area as well as in the metal area.
One overexposure in the
- week of August 1,1960, resulted from the "
sampling of slag from metal reduction by a summer sployee in a manner not consistent with approved practices.
This incident was not repeated.
It must be pointed out that the overexposures noted pertain to only a small portion of the working force at the Hematite Plant. At the peak of operations see 105 persons were employed in the plant in various l
positions and these overexposures occurred to a =ri== of 18 in the week of May 31,1960.
The dust concentrations reported are, of course, calculated numbers based on tests performed in the area and on the number of hours worked in the area. No credit allowance has been made for the use of protective #
equipment which is supplied to the working force.
It is common practice for operators to wear a dust mask even when the operation is confined to a hood.
In this way the air actually inspired has a smewhat lower air-borne dust concentration than the calculated value. Table II shows the results of urine analysis for 16 of the 21 persons overexposed in the i
period of May and June 1960.
The remaining 5 were not sampled during this period. Of the 16 that were sampled, only 5 showed a significant increase in urine content. More complete urine data in the appendix shows that subsequent urine analyses returned to a normal level within a very short time.
4
Iag sif.t--
TABLE II--Urine Analyses for Personnel Overexposed During the Period of May-June 1960 Operator Sample Date D/M/L F
6/27/60 222 H
5/16/60 92 K
5/16/60 2h P
5/16/60 111 Q
5/16/60 16h V
6/27/60 5h w
5
/60 10 6 z
/m 5
BB 6/ /60 0
FF 5
/60 13
.IH 5
/60 0.h II 5
07 JJ 6
16h LL 6/
263 NN 6
61 PP 6
28 Additional data am presented in the appendix. Table III is the complete exposure history, by operator for those overexposed in 1959. Table IV is like infomation for 1960. Table V is the biological analysis for uranitut in urine for 1959-1960.
It is believed that at least a few of the high urine analyses resulted from physical contamination of the sample during collection since a recheck revealed no significant uranium in urine.
We hope this report meets with your appmval.
If you have any comments or questions, please do not hesitate to get in touch with us.
i Very truly ymtra, MALLINCKRODT GIEMICAL WRKS Nuclear Division s
FZ/wt n%
Frank Zeitlin cc: Manager, Oak Ridge Operations Office 4
O e
APPENDII l
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TABLE Ill(Continued)
INTEGRATED AIRBORIE URANIUM DJST EIPOSURE MIcROCURIES P M MILLILITER x 10 BASED ON 10 HOURS PER WEEK MAROI 30 THROUGH JUNE 28,1959 i
NAME 1h 15 16 17 18 19 20 21 22 23 2h 25 2(
1 A
1.6 1.6 1.6 13 1.6 1.3 0.9 1.9 0.8 1.3 0
0 0
B O.6 53 1.9 1.6 25 0
0 0
0 0
0 0
0 c
5.7 3.1 h.7 6.0 5.7 2.2 0.6 0.9 0.9 0.6 03 15 1.t D
2.2 1.9 25 2.8 1.6 1.6 13 0.3 0.9 O
O O
1.1 E
5.7 0.6 0
0 0
0 0
0 0
0 0
0 0
F 1.6 1.6 13 2.2 2.2 1.3 13 1.6 0.9 3.5 0.9 23 1.3 G
2.2 0
2.2 1.9 1.9 0
0 2.2 O
O 13 1.1 1.(
H 1.6 1.9 1.9 1.6 1.3 1.6 13 1.3 0.6 1.3 1.6 1.5 2.1 I
1.9 h.7 1.9 1.6 1.9 1.9 0.6 13 0.6 0.6 03 13 1.(
AA O
O O
O O
13 0.9 1.9 1.6 0.6 1.3 25 1.! '
J 6.9 0
0 6.9 h.h 0
0 0
0 0
0 0
0 K
1.9 0
2.2 0
2.2 1.3 03 0
13 0
0 0.5 1.(
L 1.9 6.3 h.7 50 0
0 h.1 h.h h.7 1.6 1.6 1.8 1.t M
1.6 1.6 0
1.6 1.6 1.3 13-1.3 0.6 1.6 0.9 '. 2.h 0
N 1.9 1.6 1.6 5.7 6.6 1.3 1.6 1.9 0.9 03 0.9 1.5 1.1 BB O
O O
O O
O O
O O.3 0.9 03 1.2 1.
O 9.1 6.6 0.9 2.2 O
O O
O O
O O
O O
cc 0
0 0
0 2.8 6.9 0.9 1.3 1.6 0.9 0
0 0 $
P 2.2 2.2 25 2.2 35 1.6
- 0. ')
1.3 1.6 0.3 0
0 0
Q 2.2 2.2 31 3.9 2.2 2.5 0.9 0.6 1.3 0.6
_O.6 1.8 1.1 R
3.9 h.h 1.9 1.9 13 1.9 0.9 13 0.6 0.6 0.6 1.2 1.t DD 0
35 5.7 5.3 6.0 1.6 0.9 0.9 0.6 0.9 03 0.6 1.:
S 1.9 1.9 2.2 1.9 13 1.9 13 13 1.3 0.9 0.6 1.2
- 0. <
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9.1 5.0 7.2 3.1 0.6 25 1.6 1.6 1.6 1.6 1.8
- 1. :
U 6.3 6.9 h.1 6.9 57 1.3 5.0 0
0 5.7 h.7 2.2 3.
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'I. 7 6.9 2.5 13 25 1.6
'1.9 3.1 0
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1.9 h.1 1.9 35 35 1.9 13 3.1 1.9 1.9 c
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(OVER)
TAI:LK III (centinued)
INTEGRATED AIRBORNE URANIUM NST EIPOSURE MICR0 CURIES PER MILLILITER x 10 BASED ON LO HOURS PER WEEK MART 30 THROUW JUNS 28, 1959 NME 1h 15 16 17 18 19 20 21 22 23 2h 25 26 I
6.9 35 6.0 o
h.7 31 0.6 1.3 0.6 0.9 0.3 1.2 2.9 I
5.7 2.8 5.7 7.9 1.3 0
0 6.9 3.5 6.6 13 2.0 2.1 EE 1.9 2.2 1.3 25 3.1 1.9 0.6 1.6 0.6 O
O 1.7 2,h z
1.6 1.9 1.9 2.2 2.2 2.2 2.2 1.6 13 1.6 1.9 2.3 2.h
~.
TABLE 33 ] (Continued)
INTEGRATED AIRBORNE URANIUM IUST EIPOSURE MICROCURIES PER MILLILITER x lo BASED ON ho HOURS PER WEEK JUNE 291HROUGH SEPTEMBER 27, 1959 NAME 27 28 29 30 31 32 33 3h 35 36 37 38 3:
A 1.7 1.8 2.1 2.0 17 1.2 13 1.8 0.6 15 13 1.5 1.'
c 1.2 0.9 1.6 1.5 o
o o
1.8 1.3 0.6 13 1.2
- 0..
D 15 1.8 1.8 1.8 1.8 1.h 1.5 1.8 1.8 15 1.0 1.5
- 1. '
F 2.0 1.h 2.h o
o o.6 1.2 1.0 1.2 2.0 15 1.0 2.1 0
1.6 1.8 2.0 1.3 13 1.0 0.7 1.8 1.8 1.5 0.9 1.h 2.'
H 1.0 2.h 1.6 1.h 1.2 0.8 o
o 2.h 1.1 1.0
'1.6 1.8 1
1.0 o
o 1.2 1.h o.8 o.8 1.2 1.2 1.2 0
1.0 1.
AA 2.h 2.1 1.7 o
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1.7 1.5 1.h 1.1 1.1 1.5 2.
K o.5 1.1 o.6 0.7 1.o 1.0 1.3 1.2 o
o 1.0 1.2 1.
L 15 1.2 1.8 2.0 1.9 1.h 1.3 1.5 1.8 1.7 1.2 0.7 1.
M o
15 2.2 1.2 2.0 0.8 1.1 1.2 1.2 2.0 2.2 1.h o
N 1.8 1.6 13 1.0 1.2 0.8 1.0 1.2 1.2 0.8 0.h o
o BB 1.0 1.1 1.2 1.3 1.3 0.9 0.7 0
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1.2 1.
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Q 1.5 1.8 1.8 1.8 1.8 1.1 1.5 o
o 1.5 1.0 15 1.
R o.9 1.2 1.2 13 1.h 0.8 0.9 1.2 1.2 1.0 o
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S 0.5 1.h o
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T 1.2 1.8 1.8 1.8 1.6 0.5 0.9 1.0 1.0 0.5 0.5 0.7 o.
U 2.1 2.0 1.8 1.8 1.8 0.8 0.9 1.7 2.2 1.h 1.h 1.5 2.
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1.3 03 0.
W 31 2.h 2.1 1.8 15 0.7 1.0 1.1 0.h 1.1 1.8 0
1.
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I 2.0 1.7 1.9 1.2 1.3 0.h 0.6 1.0 1.h 0.5 0.6 1.3 o.
EE 2.0 0
0 2.h 2.h 1.9 1.2 23 25 1.0 2.0 2.0 1.
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TAILE 3 J) (Continued),
INTEGRATED AIRBOINE URANIUM DUST EIPOSURE MICROCURES IER MILLILITER x 10 **
BASED ON LO HOURS PER WEEK SEPTEMBER 28, 1959 THROUGI JANUARI 3,1960 NAME LO hl h2 h3 hh h5 h6 h7 h8 h9 50 51 52 53 A
2.2 2.8 1.1 2.8 30 0
1.2 1.8 0.8 1.8 1.8 1.8 1.2 0.9 AA 17 2.1 2.0 1.6 2.0 2.0 1.8 1.0 0.9 1.8 1.8 1.5 1.2 0.9 BB 1.0 1.1 1.0 1.2 1.3 13 1.3 15 0.9 1.2 1.2 1.2 0
2.6 c
1.7 1.2 1.2 1.2 1.8 1.5 1.5 1.5 0.6 1.8 1.8 15 0.9 1.2 D
1.8 1.8 1.8 1.8 1.8 2.6 1.8 1.8 0.9 1.8 1.8 1.8 1.2 0.9 DD 1.0 1.0 0.8 1.1 1.2 1.2 1.0 13 0.9 1.0 1.1 1.h 0.6 1.0 EE 2.1 1.6 1.8 2.h 2.h 1.2 1.2 2.h 0.9 1.2 1.2 2.h
' 1. h 0.6 F
1.2 1.7 2.h 2.7 1.2 1.2 2.0 1.h 0.6 1.2 2.h 2.h O
0.6 FF 1.h 1.0 0
0 1.2 1.2 1.2 1.2 0.6 1.2 1.2 1.2 0.6 1.0 G
1.0 1.2 0.6 1.h 13 1.h 1.h 1.5 1.0 1.h 1.h 1.5 1.0 32 H
1.0 1.6 2.h 1.h 1.2 2.h 2.h 0
1.0 2.h 2.h 1.2 1.2 13 IDI O
O O
O O
O O
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O O
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0.9 oo O
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2.h 2.h 2.h 1.2 2.h 1.2 2.5 0.9 0.8 I
1.2 0.8 1.2 1.h 1.h 1.h 1.h 13 0.6 1.h 1.2 1.2 0.6 3.8 n
0 0
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25 2.7 2.2 2.2
- 2. 2 2.2 2.2 25 1.h o
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- 2. 3 2.1 0.9 1.8 1.8 1.8
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1.7 0.6 38 L
1.8 1.8 1.8 2.1 1.8 1.8 1.8 1.8 09 1.8 1.6 0.9 1.1 0.9 LL O
O O
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O O
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1.2 1.2 1.6 M
2.0 2.h 2.h 2.8 2.0 1.h 1.2 2.h 1.2 2.h 2.h 1.6 1.3 1.2 N
30 37 0.7 h.2 h.O 3.0 2.h 1.8 0.9 1.8 1.8 1.8 0.9 1.h P
1.8 1.8 1.8 2.3 1.8 1.8 0.9 1.8 1.9 1.8 1.8 1.8 0.9 1.2 q
1.8 1.8 1.8 a.8 1.8 1.8 1.8 1.8 0.9 1.8 1.8 1.8 O
O.9 R
1.0 1.2 1.1 1.h 1.h 1.h 1.h 1.h 0.6 1.h 1.h 1.h O.8 3.8 S
0.8 1.0 0.6 07 0.5 0.8 1.2 0.h 03 0.6 0.6 1.h O.3 05 T
0.7 0.8 0.6 05 0.8 0.6 0.7 0.6 0.9 1.7 1.8 2.1 1.2 1.2 U
2.0 2.1 1.9 1.8 0
0 0
1.9 19 1.8 1.9 1.8 0.9 0.6 v
O.7 23 2.8 1.6 17 1.7 2.0 1.9 0.9 30 1.8 2.0 03 1.2 t
(OVER)
TABLE 113(Continued)
INTEGRATED AIRBORNE URANIUM DUST EIPOSURE MICR0 CURIES PER MILLILITER x 10'"
BASED ON hp HOURS PER WEEK SEPTEMBER 28,1959 THROUGH JANUAHr 3, 1960 NAME h0 hl h2 h3 hh h5 h6 h7 2 '3 h9 90 51 52 53 w
27 2.1 25 25 3.3 h.o 2.h o
0.9 1.8 1.8 2.9 0.9 0.9 1
1.0 1.2 1.2 1.h 1.h 1.2 1.h 17 1.0 1.k 1.9 15 1.0 2.1 Y
1.6 1.8 0.9 07 1.9 13 2.6 2.6 1.2 2.h 2.h 2.2 0.8 0.h z
2.h 2.h 2.h 2.8 23 2.h 2.h
- 2. 2 13 2.h 2.k 2.h 1.2 2.0 w-m
~ _
TABIL J2 I_NTEGRATED AIRBORNE URANIUM DUSP EIPOSURS MICR0 CURIES PER MILLILITat I 10 BASED ON LD HOURS PER WEEK JANUARI h EROUN APRIL 3,1960 NAME 1
2 3
h 5
6 7
8 9
10 11 12 13 A
1.5 1.8 2.9 h.O h.O 3.8 3.3 3.9 1.8 03 h.0 h.3 1.8 C
1.5 03 1.0 0.3 1.5 13 1.9 1.2 1.3 0.9 1.2 2.1 1.8 D
1.8 03 1.8 1.8 1.8 33 3.2 1.8 1.8 1.8 1.9 2.1 1.8 F
1.9 1.h 13 15 1.8 1.8 15 1.8 1.8 2.1 1.6 h.2 1.8 G
33 7.L 7.8 0
11.6 9.6 3.2 31 h.3 h.2 h.2 h.0 h.1 n
7.S 2.9 3.6 3.6 3.6 11.6 2.9 3.1 33 3.9 2.0 3.5 33 I
31 31 3.1 3.1 3.1 3.1 2.6 2.6 3.1 31 31
- 2. 6 31
'7 2.0 2.2 2.2 1.9 23 1.6 1.9 1.9 2.h 1.9 2.3 1.9 K
L 1.8 1.h 1.2 1.0 0.9 1.2 1.2 1.2 1.1 1.0 0.6 1.h O
M 2.0 1.h 2.2 1.0 0.6 1.2 1.2 1.2 1.2 1.2 0.2 0
0 N
1.2 1.8 3.3 h.O h.O h.O 3.7 17 2.0 1.8 h.0 h.6 2.2 P
1.8 1.8 1.8 1.8 1.8 2.0 3.6 1.8 1.8 2.1 1.8 1.8 1.8 Q
1.7 1.8 1.8 1.8 2.3 1.8 1.8 2.7 1.8 1.6 1.8 2.1 1.8 R
33 31 3.1 3.1 3.1 2.8 2.6 o
0 0
3.1 3.1 3.1 s
0.7 1.6 15 13 15 1.2 13 1.6 1.8 1.7 0.7 07 0.6 T
1.8 1.8 1.6 1.6 15 1.2 0.8 1.8 1.8 1.7 0.6 1.7 2.1 u
o 0.9 15 15 1.8 2.1 2.h 2.1 2.0 1.9 2.2 25 2.1 y
h.6 1.8 15 15 1.8 2.1 1.6 2.7 15 0
1.5 2.1 2.2 W
1.1 1.8 3.3 h.0 h.6 h.0 2.0 2.5 1.8 1.9 k.o h.3 h.o x
2.h 2.1 1.9 1.9 1.9 2.h
- 2. 6 0
3.2 2.h 25 2.3 2.2 Y
1.1 25 0.9 0.9 13 13 1.1 0.6 1.2 1.2 1.h 1.h 1.2 Z
2.1 1.1 2.2 1.0 1.2 0.6 1.2 1.2 1.2 2.7 1.2 1.7 1.h AA 25 1.8 15 1.5 1.8 23 1.8 1.8 2.1 1.8 1.9 2.2 2.0 Bn 2.8 5.h 12.6 1h.8 2.6 33 2.6 0.1 0
0 3.h 31 3.2 DD 39 h.1 h.0 5.0 3.9 3.8 3.0 3.0 h.2 2.5 25 2.0 3.2 EE 1.0 75 6.h h.1 6.7 3.6 33 2.2 37 2.9 3.h 3.h 35 (OVER) a m
v TAnIE Td (continued)
INTSGRAT2.D A3RBoRNE URANIUM DUST EXPoafRS MICROCURIES PER NTT.T.TT.TTER x lo **
BASED ON ho HOURS PER WEEK JANUARY h THROUT APRIL 3,1960 NAIE 1
2 3
h 5
6 7
8 9
10 11 12 13 I
FF 13 1.2 1.2 1.0 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.h 1.h m
0.6 1.7 1.2 1.6 1.8 1.8 1.5 1.8 15 1.8 h.0 2.1 1.8 mt 1.8 1.8 1.5 1.2 1.9 1.8 1.8 1.8 1.8 1.6 1.8 2.1 23 JJ 1.h 1.8 2.2 3.3 h.6 1.8 15 1.8 1.8 2.2 2.o 39 1.8 121 2.2 h.5 36 h.7
)).)
3.0 31 1.9 2.2 2.3 3.2 31 35 NN 1.1 1.8 1.2 1.1 0.7 0.3 13 1.h 1.2 0.7 1.9 o
15 co 0
3.7 o.5 0.6 o.h 0.h 1.3 07 2.3 0.9 5.8 h.8 0
~.
4
i TELE IV (continued)
INTEGRATED AIRBORNE URANIUM DUST EIPCSUIE
~
MICROCURIES Pi',R MILLILITER x 10 BASFS ON ho HOURS PER WEEK APRIL h THROUGH.NLY h, 1960 NAME 1h 15 16 17 18 19 20 21 22 23 2h 25-26 A
1.6 h.o h.o h.o.
33 h.o lh.h 20.5 20.5 2h.6 2h.6 6.5 5.7 c
o.8 05 0.6 1.5~
05 o.6 0.6 05 0.5 05 0.5 0.5 0.5 D
1.8 1.8 1.8 1.C<
1.8 1.8 13.8 21.5 11.5 1.8 12.8 15 1.5 F
2.1 2.0 2.1 2.1 2.1 2.1 2.S 23.5 23.5 o
o 51 h.1 G
h.1 35 3.9 h.1 2.0
- 2. 2 2.9 27 o
o o
1.2 2.1 11 35 2.9 3.h 3.2 30 3.7 3.h 2.7 2.h 2.6 2.3 2.9 3.h I
3.1
- 2. 6 35 1.8 3.1 2.1 31 3.h 1.8 2.0 o
o o
K 2.2 1.9 2.h 2.3 2.2 2.1 23 1.6 1.6 1.h 2.1 1.7 2.1 L
o o
1.2 0.7 1.2 1.1 1.2 1.5 1.8 1.h 13 1.6 15 i
M o
o o
o o
1.2-1.2 1.2 23.5 2h.6 2h.6 6.5 65 N
1.7 h.o 39 h.o h.o h.o 30.8 20.5 20.5 26.6 2h.6 65 65 P
1.8 1.8 1.8 1.8 1.8 1.8 17.8 21.5 21.5 o
lb.8 1.5 15 Q
1.8 25 1.8 1.8 1.8 1.8 17.8 10.5 15 2.8 1.8 1.5 1.5 R
3.1 2.6 2.8 31 3.0 31 30 2.2 o
o o
1.8 2.2 s
1.6 0.7 0.5 0.7 1.1 05 o.6 05 1.5 1.0 0.9 15 13 T
o.5 o
0.5 1.1 1.6 0.1 o
o o
07 1.5 1.2 U
1.7 2.2 2.1 2.1 o
o o
10.8 9.0 10.8 19.5
. 5.h h.o V
1.8 1.6 2.1 1.h 2.1 2.1 10.8 10.8 9.0 19.5 16.9 5.h 5.2 W
1.3 h.o 30 h.o h.o h.o 28.?
20.5 20.5 1.8 2h.6 2.6 65 I
2.2 1.9 2.2 2.2 2.2 25 1.9 1.6 1.0 1.8 2.2 o
o Y
1.2 1.h 1.1 1.0 2.1 h.o 10.8 0.8 2.0 2.0 19.5 2.h 0.9 Z
1.2 1.2 1.2 1.2 1.2 o
o o
20.7 19.5 18.3 5.h 23 AA 1.6 2.8 2.1 2.1 2.1 2.1 10.8 9.0 9.0 10.1 10.P 3.6 2.h m
3.1
- 2. 6 h.o h.o h.o 1.8 2h.6 20.5 20.5 22.3 2h.6 5.h 2.6 DD 2.1 32 1.8 2.2 35 2.2 1.6 2.1 13 1.9 1.1 2.2 2.2 EE 3.5 2.8 35 3.3 2.9 31
- 2. 3 2.6 1.3 1.6 2.0 o
o FF 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.0 0
1.h 25 1.0 1.0 GG 2.1 33 39 h.o h.o h.o 2h.6 20.5 20 5 2h.6 2h.6 6.5 101 1.8 1.5 1.7 15 o
o o
15 19.1 2h.5 10.0 6.8 3.h (oVER)
TailIZ. IV (continued)
INTEGRATED RIRBORNE URANIUM DUST EIPMURE MICR0 CURIES PER MILLILITER x 10~
BASED ON h0 HOUR PER WEEK APRIL h THROUGI JULY h,1960 NA}E lh 15 16 17 18 19 20 21 22 23 2h 25 26
.TJ 1.5 3.6 30 h.0 h.0 h.0 26.6 20.5 20 5 20.5
,.m 3.2 2.8 2.h 1.2 1.9 1.1 2.0 0
0 1.8 1.8 17 1.2 un 0.9 17 0
1.2 0
0 5.6 0.5 0.6 3.0 1.2 0.8 2.0 LL 1.2 13 2.1 2.1 2.1 2.1 28.2 28.2 23 5 28.2 00 1.h 2.1 17 2.1 2.5 07 0
0.7 0
0 1.2 13 2.0 PP 1.9 2.1 2.1 2.1 2.1 2.1 28.2 28.2 23.5 28.2 II 3.6 3.0 0
0.8 0.5
- 2. 0 17.2 0
17.2 21.5
~.
TABLE IV (continued)
INTCGRATED RIRBORNE URANIUM DUST EIPOSLTRE NICRoCURIES PFR MILLILITER x 10~
BASED ON ho HOURS IER WEEK fJ $ THROUT OC10BER 2,1960 HAl'E 27 28 29 30 31 32 33 3h 35 36 37 38 39 A
.i 6
35 2.9 0
0 0
6.5 1.5 1.2 o
o o
C o.h o
0 0
0.5 0.5 0.5 05 o.5 o.h o.h o.5 0.5 a
1.2 1.5 o
o o
15 15 15 1.5 1.2 1.5 1.5 1.5 F
1.7 2.0 1.5 15 15 2.0 0.6 05 1.5 15 1.1 05 0.7 r1 1.7 2.2' O.5 15
- 2. 3 2.0 2.0 o
o 0
0.1 o
o H
2.0 2.6 1.2 1.0 2.0 0
2.0 2.0 1.2 1.6 2.0 2.5 2.h 1
0.7 1.e o.6 0.5 1.5 1.1 1.0 1.5 1.2 1.1 1.2 2.5 25 K
o o
o 0.5 15 2.0 1.5 15 0.7 1.3 1.8 1.6 2.h L
o.9 1.0 15 1.5 1.h 1.5 1.5 1.0 1.1 1.1 1.h 1.2 1.2 M
o
.o 15 3.5 2.5 6.5 6.5 h.2 1.h 1.2 15 1.5 6.5 u
o.-
1.5 25 6.5 6.5 h.8 o
o 1.2 1.5 e
1.0 1.5 1.5 0
0 15 1.5 1.2 15 1.2 15 15 1.5 y
1.2 o
o o
1.5 15 1.5 1.5 15 1.2 1.5 15 15 a
2.2 2.2 1.5 15 1.6 2.h 1.2 1.5 1.7 1.3 23 2.2 36 1.0 0.8 1.1 o
o 1.1 05 05 1.1 1.1 1.h 1.9 o.7 1.5 1.7 1.5 1.5 3.0 15 15 1.2 1.2 1.5 1.5 15 u
y o
o 1.2 15 6.5 6.5 h.8 1.8 1.5 1.6 1.3 o.
6.5 y
2.0 0.9 1.1 0
o 1.2 0.6 o.8 1.1 1.h 1.6 1.2 I
o 2.1 1.6 1.0 1.8 2.0 1.1 13 2.0 1.6 1.8 Y
0.8 15 1.5 15 15 15 6.5 5.5 0.8 1.1 o
o 1.0 t
h.8 0
1.h 1.0 2.0 2.0 1.8 1.5 1.o 1.6 2.0 2.0 2.0 AA
'>.7 0
0 15 2.5 2.2 6.g 15 1.2 1.5 1.8 h.8 FB 1.6 1.5 1.5 o
o 1.5 1.5 o
o 0.2 1.8 15 1.5 DD 1.8 2.h 1.2 0.9 0.7 15 15 1.5 1.5 1.3 1.9 1.5 2.5 EE 2.h 2.1 0
15 2.0 1.0 1.0 0.9 1.0 0.8 1.0 1.0 1.o l
FF o.8 1.0 1.0 1.5 1.0 2.0 1.0 1.0 07 o
o 1.5 6.5 i
llH 1.2 1.7 1.6 15 1.5 1.6 1.5 1.5 1.3 1.2 1.h 1.k 1.5 l
Im 0.h 1.0 1.2 0.8 23 1.5 0.5 0.9 2.0 1.2 1.1 1.8 32 l
NN 1.5 1.6 0.6 05 0.6 15 05 09 07 0.7 05 05 1.3 l
co 2.8 2.7 1.h 0.6 1.0 1.1 0.9 07 0.h o.5 0.5 0.5 2.h 1.2 3h.7 2.h 23 2.1 2.2 1.8 QQ 1
a o
TABIEV URINARY URANIUM EIOLOGICAL DATA DEINTEGRATIONS ER MINUTE ER LITER JANUARY 1959 THROU3H SEPTEMBER 1960 NAME DATE OF SAIGLE D/M/L NAME DATE OF SAMPLE D/M/L A
3/16/59 62.0 I
2 9
73 0 5/0h/59 58.0 3
59 9.1 7 3/59 1h.0
/59 hh.0 11 6/J9 19 0 9
15 0 h 8/60 88.0 10 2.0 7/2560 1.0 B
2 9
0.0
\\
h 9
0.0 J
3/16/59 36 l$298 8$
h 20 9 K
1 9
13 0 9
9 0.0 5
9 55 3
26.0 9
9 1.8 8
70 1
15 0 5 6/60 2h.0 D
2 9
0.0 7
9 h7 0 L
h 9
32.0 i
11 9
hh.0 8
9 16.0 1
5h.0 12 20.0 3
60.0 5/1 24.0 h
71.0 7
60 62.0 M
1 5.0 8
60 685 0 2
59 12.0 6
9 2.2 E
3/16/59 35 0 10 9
73 0 h/28/59 1.0 12 9
21.0 3
27 0 F
2 9
0.0 2
19.0 6
9 0.0 7
60 93 0 10 9
35 0
/60 2 $0 3
9 10$
7
/60 107 0 7
9 26.0 11 9
h6.0 o
h/20 9 14.0 1
hh.0 8/17 9 56 60 21.0 9
h.0 7
60 ho.O 1{
8/15 lb.0 0
3 9
13 0 K
5 9
21.0 9
5$6 23$
5 92.0 7/11/60 h.D (OVER)
it i
1 TABL5 \\
(Continued)
URINARY UMNIUM 30 LOG 10AL DATA DISINTEGRATICNS PER MINUTE PER LITER JANUARY 1959 THROUGH SEPT 2BER 1960 NAME DATE OF SAMPLE D/M/L_
NAME DATE OF SAMPLE D/M/L P
2/16/59' 27 0 V
6 9
16.6 7/13/59 50.0 10 9
31.0 l
8 59 hh.0 2
24.0 10 9
L0.0 6/27/60 5h.0 l
2 h22.0 7/25/60 1h.0 5
60 111.0 7
60 h6.0 W
2/16/59 31.0 i
3 3/59 11.0 Q
9 9.0 h
9 11.0 4
1 5
9 27.0 5
9 21.0 l
9 59 23.0 9
9 9.7 1
60 6.0 1
h.h 5
60 16h.0 5
h06.0 l
8 60 18.0 7
h5.0 R
3/
9 6.8 I
3 9
1.2 9
16.0 3
9 1.6 4
9 8.h h 6/59 52 5
9 22.0 8
9 0.0 8
9 18.0 12 9
0.0 l
12 9
h.h 2.9 8/15/60 0.0 8
1/2 9
2.0 9
33 0 3/1 9
87 0 6
9 27.0 h/2 9
5.2 10 9
22.0 8
9 12.0 3
2h.0 1
12 9
5.6 7
10.0
]
12.0 8/15/60 15 0 Z
2 9
3.6 T
2/1659 13.0 10 9
16 3/16 9 22.0 2
10.0 4
i:!
3-5 9
35 AA 5
2.0 i
1 59 0.0 5
9 107.0 7
2.9 9
3h,0 f
h$
U 2/16/59 16.0 5/0h/59 0.0 3
9.6 l
8/15 25.0 1
12 9
27.0 BB 0.9 107.0 10 9
0,0 2
/60 50.0 2
1.h h/25/60 1ho.O 0.0 (OVER)
\\
t TABL3 V (Continued)
URINAFT URANIUM 3IOLOGICAI, DATA
~
DISINTsGRATIONS PER MD1UTE PdR LITER JANUARY 1959 HIROUGI SEPTEIGER 1960 NAME DATE OF SAMPLE D/M/_L NAME DAT3 0F SAMPLE D/M/L cc h
9 30 KK 10/26/59 h.0 5
9 1.8 n 6/59 0.0 9
59 2.6 2 3/60 7.3 DD 9
0.9 LL 12/07/59 0.0 8
9 0.0 1/18 52 12 9
0.0 5
726.0 h
6.7 6
/60 263.0 8
22.0 7
/60 15h.0 EE 1
9 70 MM h/20/59 1.2 5
9 12.0 8
9 0.9 9
9 hh.0 12 9
3.6 11 9
25 0 h
h.9 1
16.0 8
0.0 3/1 60 18.0 un 1
9 9.0 FF 8
9 0.0 2
9 25 0 9
9 0.h 9
61.0 1
56 8
9 92.0 5/16/60 13 0 12 9
20.0 00 n
9 h.0 n
9 18.0 00 3
9 13 0 57.0 9
22.0 233 0 9
0.0 7/11 58.0 8
9 18.0 2
6.7 HH 12 9
0.0 6/ /60 11.0 1
n.0 6%'
M II 9
9 30 9
9 1.3 12 9
0.0 5
0.7
/60 17.0 JJ 9
9 9.0 10 9
18.0 2
95.0 5
8h.0 16h.0 36.0 7
4