Document 6RdEgO4j4vQx0p1Kv45K6GkX9
Interoffice Communication
t
To A. H. Sather
From j. V. Uptain
ot October 3, 1978
Subject CHEMICAL EXPOSURE MONITORING SUMMARY -THIRD QUARTER, 1978
RECEIVED
OCT J 6 197$
m.MEDICAL
I. COLOR WEIGH ROOM
High-volume sampling was repeated following the connection of the weigh hood to the compound ventilation system.
The results (see Table I) clearly indicate that exposures, particularly those related to the dustier material such as the barium/cadmium complexes, are still excessive, in spite of the increased airflow through the hood.
h
A proposal for modifying the color weigh room operation is being reviewed at writing.
II. COMPOUND LINE I AIR SAMPLING
III.
Preliminary results of high-volume air sampling on Compound Line I appear in Table II. Although the final analysis for heavy metal content is not yet
4-
completed, the total particulate concentrations so far indicate no serious problems.
*k
* .J
SILICON DIOXIDE
Four, 8-hour TWA dosimetry-type Silicon Dioxide samples, involving the Plasticizer Operators, were taken, using a "respirable fraction" vortex sampler (see Table IV). No significant exposures were found.
IV. PHTHALIC ANHYDRIDE
*
Ten dosimetry-type Phthalic Anhydride samples were taken, involving Yard Operators and Plasticizer Operators (see Table III). Work tasks studied were the routine production of plasticizer and the connection/disconnection of Phthalic Anhydride railcars. Exposures were well under established limits.
V. COMPOUND AREA HIGH-VOLUME SAMPLING
The results of 24 high-volume air samples taken on Compound Line III and in Dry Blend are shown in Table V. Except for 4 samples, the results are very encouraging. Two of the four results (#78-78 and #78-80) indicate total particulate and tin problems in the Dry Blend area, although the limited amount of information does not justify firm conclusions. Similarly, samples #78-65 #78-89 indicate high lead concentrations in two Line III areas.
VAB.0001050191
A. H. Sather October 3, 1978 Chemical Exposure Monitoring Summary Third Quarter, 1978 Page 2
tr
V. COMPOUND AREA HIGH-VOLUME SAMPLING (Cont.)
All in all, the results are better than anticipated, the difference probably due in large part to the compound ventilation system.
tp Attachments
c: Plant Manager, Department Heads, DSC, EDS, DAK, JJH, ODS
*
t
*
VAB.0001050192
Sample No.
78-99 -105 -110 -114 -118 -119 -100 -101 -104 -113 a 4 -120 -109 -111
-112
TABLE I COLOR WEIGH ROOM HIGH-VOLUME AIR SAMPLING
6/28/78 - 7/26/78
Material Samp 1 ed
Barium/Cadmium
tf It
If fl
ft ft
w
If If
ff ft
Antimony Trioxide
ft If
ff It
fl tf
If
J
fl
bIf ft
Dibasic Lead Phthalate
Dibasic Lead Phthalate Antimony Trioxide
TLV Mg/M3
* Total Particulate Concentration, Mg/M3
Ba: 0.5; Cd: 0.2 *&
ff It
9
ff tf
14.1 23.5 18.9
ff
9
If
1ft II i
ft * ft
0.5 (Sb)
ft if
*
15.0 18.4 14.0
4.9 10.1
ft fl
ft if
i
If ft
4
tf ft
i
9.9 3.1 6.3 12.4
0.2 (Pb)
1.0
Pb: 0.2; Sb: 0.5
4.1
* TLV for total particulates =15 mg/ra3
A
VAB.0001050193
A
*
TABLE II COMPOUND LINE I HIGH-VOLUME AIR SAMPLING
6/30/78 - 8/8/78
Material Being Sampled Barium/Cadmium Complexes TLV 0.5 Mg/M3 (Barium> ; 0.2 mg/M3 (Cadmium)
Sample No.
78-106 -116 -107 -115 -125 -108 -117 -128 -126
%
Location
Between Blenders
SE Comer of "B" Blender
Between Blenders Banbury
ft If
tf
If ft
ft
Just SW of Mill
ri it ti Tf ti T1 H II
Compounder's Desk
* TCootnacl ePntararttiicounl,aMteg/M3 2.0 3.5 2.0 0,9 0.6 2.0 1.6
1.1
0.4
3 * TLV for total particulates - 15 Mg/M
VAB.0001050194
I
A
TABLE III PHTHALIC ANHYDRIDE DOSIMETRY
7/10/78 - 8/23/78
3 TLV for Phthalic Anhydride = 12 Mg/M
(8 hour TWA)
Sample No.
78-113
-114 a -121 -127 -129 -123 -124 -130 -132 -131
Job Classification
Task
Plasticizer Operator Plasticizer Production
Sampling Time
5.3 hours
If tt
It
4.2 hours
tl If
tt
6.5 hours
If It
ft
7.8 hours
ft tt
tt
6.5 hours
Yard Operator
tt ft
Connecting R.C
ft It
10 min 18 min
It tt
ft tt 13 min
ft tt
If tl 15 min
It tt
Disconnecting R.C. 10 min
Concentration, Mg/M3 <3.8
<4.0 <0.03 <0.02 <0.03 <1.0
v
<0.6 1.0 0.7 1.0
*
<
VAB.0001050195
\
TABLE IV
*
SILICON DIOXIDE DOSIMETRY
I-
7/13/78 - 8/25/78
TLV: 5 Mg/M3 (Total), 2 Mg/M3 (Respirable)
Employees Sampled:
Plasticizer Operators
Sample No.
115 a SD-2 122 133
Concent ration 8-hour TWA Respirable Fraction, Mg/M^
0.25
0.12
n
0.77
0.17
A
I +
VAB.0001050196
I
SAMPLE NO.
*
CHEMICALS BEING SAMPLED
1
78-17 Alkytin Mercaptide
I
COMPOUND
78-27
TABLE V
3/10/78 - 5/25/78 78-33
78-46
78-47
SAMPLING LOCATION
3* W of SE Corner of Master Batch Charge Platform
3' E of E Line 3 Dicer Line
ELEMENT
Antimony
Barium
Cadmium
p
Chromium
Copper
Lead
Manganese
Tin
TOTAL PARTICULATES
** Equivalent Exposure (Mixture)
0.18 0.30 0.30 0.04 0.06 1.76 0.07 0.10 1,600 0.01
0.10 0.08 0.04 0.02 0.08 3.66 0.05 0.02 210 0.02
SE Corner of FCM Room
SE Corner of Line 3Feeder Deck
E of Line 3 FCM/Mill Conveyor
MICROGRAMS 2.86
*
0.69 0.16 <0.08 0.24 45.48 0.19 * <0.08 860 0.24
* <7.32 4.58
* <0.73 < 0.73 < 0.73 18.31 < 0.73 < 0.73
6,000 0.14
1.50 2.79 < 0.38 <0.38 < 0.38 46.95 < 0.38 * < 0.38 5,000 0.26
SE Corner of Line 3 Feeder Deck
120.00
TOXIC LIMIT VALUE (TLV)
500
5.39
500
* < 0.32 1.22
< 0.32
e- 200 Vm
54.7 ( As Cr in CrOj)
1,000
200
< 0.32
500
< 0.32
100
6,000
15,000
1.27
1.00
* No emission line observed for this element. All < or > values were outside calibration range.
'* Eu Cj C2 ....... Cn
Li L2
Ln
, where: Em is the equivalent exposure of the mixture , C is the concentration of a particular contaminant, L is the exposure limit for that contaminant.
VAB.0001050197
SAMPLE NO. CHEMICALS BEING SAMPLED
SAMPLING LOCATION
78-88
Dibasic Lead Phthalate , Tribasic Lead Sulphate
4' E of Line 3 Blenders, 2nd Floor Level
TABLE V (Cont,)
COMPOUND AREA HIGHrVOlUME AIR SAMPLING
4
3/10/78 - 5/25/78 78-90
Alkytin ?
Mercaptide J
Line 3 Blender Platfora
Dry Blend/Line 3 Control Room '
-
78-91
%
Dry Blend Master Batch Platform Between Hoods
78-92
*
78-93
*
Tribasic Lead
Alkytin Mercaptide,
Sulphate, Antimony Dibasic Lead Phthalate,***
Trioxide
Tribasic Lead Sulphate
SE Comer of Line 3 Blender Platform
Between Line 3 and Dry Blend Charge Platforms 2nd. FIoot Level.
*
ELEMENT
+
Antimony
Barium
Cadmium
Chromium
Copper
* < 1.44 < 0.14
* < 0.14 < 0.14 < 0.14
7.31 0.70 * < 0.46 <0.46 <0.46
*
CONCENTRATION, MICROGRAMS PER CUBIC METER OF AIR
1.22
5.81
12.98
1.72
1.99
6.49
* < 0.02 4
0.31
* < 0.08 0.85
* < 0.12 *
< 0.12
1.53
<0.08
< 0.12
1.19 -m
0.4S
* < 0.11
< 0.11
_0.48
Lead
20.61
Manganese
0.18
Tin 0.50
TOTAL PARTICULATES
** Equivalent Exposure (Mixture)
1,680 0.12
<0.46 0.79
3,790 2.34
2.45 0.03 0.65 580 0.03
10.35 < 0.08
0.55 1,500
0.09
35.14 0.16 1.97
600 0.24
12.78 0.16 1.08
1,500 0.08
* No emission line observed for this element. All <.or ^ values were outside calibration range.
** ^ Cj + C2 +.............. Cn , where: Em is the equivalent exposure of the mixture , C is the concentration of a particular contaminant,
IT T2
Ln
L is the exposure limit for that contaminant.
TOXIC LIMIT VALUE (TLV)
500
500
200
54.7 (As Cr in Cr03)
1,000
200
500
100
15,000
i
1.00
VAB.0001050198
I 4
I
4
<
* 4
1 *
SAMPLE NO. CHEMICALS BEING SAMPLED
SAMPLING LOCATION
78-66.
Tribasic Lead Sulphate, Antimony Trioxide
TABLE V (Cont.) COMPOUND AREA HIGH-VOLUME AIR SAMPLING
78-67
3/10/78 - 5/25/78 78-68
78-76
Barium/Cadmium Complexes
SW Corner of Line 3 Feeder Deck
E oiF Line 3 FCM/Mill Conveyor
3' E of Line 3 E.Dicer Line
Line 3 Mill, Oper. Station
78-77
78-78
Di(N-Butyl Tin) SS Bis (iso-octyl) Mercapto Acetate
Dry BLend Mezanine, Just above 2nd floor
4
ELEMENT Antimony
IS. 14
16.32
CONCENTRATION, MICROGRAMS PER CUBIC METER OF AIR V * ....
P 4
2.64
0.11
0.15
Barium
0.63
1.90
0.21
0.09
0.20
*
Cadmium Chromium
* <0.34 0.35
0.21 0.20
0.03
*
0.04
0.05 0.01
0.08 0.02
Copper
< 0.34
0.16
0.04
0.10
0.02
Lead
20.07
46.63
3.31
0.72
4.46
Manganese
< 0.34
0.21
o.os
0.05
Tin
33.81
0.11
TOTAL PARTICULATES
5,520
930
*
** Equivalent Exposure (Mixture)
0.48
*
0.28
*
* No emission line observed for this element All ^ or ^
0.03
*
160
*
0.02
0.02
*
645
0.01
values were outside calibration range.
0.02 0.02 ' 771 0.02
*
17.47
0.73 * < 0.39
0.41
*
< 0.39 23.15
< 0.39 39.00 8,720 0.53
.
* Em Cj + C2 * ..... .. Cn
L1 l2
Ln
, where: Em is the equivalent exposure of the mixture , C is the concentration of a particular contaminant.
L is the exposure limit for that contaminant 4
*
TOXIC LIMIT VALUE (TLV)
500
500 200
54.7 (As CrJinCrOj)
1,000 200 500 100
15,000 1.00
>
VAB.0001050199
t
SAMPLE NO CHEMICALS BEING SAMPLED
SAMPLING LOCATION
TABLE V (Cont.) COMPOUND AREA HIGH-VOLUME AIR SAMPLING
3/10/78 - 5/25/78
78-79
78-80
Di(N-Butyl Tin) SS Bis (iso-octyl5
Mercapto Acetate
Dry Blend Mezanine Dry Blend Mezanine
Just Above 2nd
Between 1st 6 2nd
Floor
Floors
78-81
78-84
Tribasic Lead Sulphate,Antimony Trioxide
Line 3 Mill, Oper. Station
78-86
Dibasic Lead Phthalate, Tribasic Lead Sulphate
SE Corner Line 3 Blender Platform
78-87
4' E of Line 3 Blenders, 2nd Floor Level
4
ELEMENT Antimony Barium Cadmium Chromium Copper Lead Manganese Tin TOTAL PARTICULATES ** Equivalent Exposure
(Mixture)
12.10 0.70
* < 0. 22 0.35
<0.22 21.79
< 0.22 15.60
4,860 0.30
12.53 1.39
* <0.65 7.89
< 0.65 35.26
<0.65 74.23
14,530 1.10
CONCENTRATION, MICROGRAMS PER CUBIC METER OF AIR
22.85
11.76
22.06
1.77
* < 0.20
4m
0.38
0.74 0.09 0.18
4 0.25 * < 0.08
< 0.08
<0.20 31.50
0.15 it
8.82
< 0.08 14.71
< 0.20
0.13
0.53
27.00
0.12
0.33
5,670
1,010
1,100
0.49 ,4
0.07
0.12
2.12 0.38 * <0.03 0.04 <0.03 6.44 0.46 0.17 4S9 0.04
* No emission line observed for this element. All ^ or > values were outside calibration range.
** Efi, " l_ + Cg. + .............. Cn , where: Em is the equivalent exposure of the mixture , C is the concentration of a particular contaminant,
L} L2
Ln
L is the exposure limit for that contaminant.
TOXIC LIMIT VALUE (TLV)
500
500
200
r
54.7
1,000 (As Cr in CrOj)
200 500
100 IS,000
1.00
VAB.0001050200