Document qaXeyw3zQjwwz4wb0wkB4ebNR
ABERDEEN CHEMICAL PLANT INDUSTRIAL HYGIENE MONTHLY REPORT
A
Months: November and December, 1986 Date of Report: January 26, 1987
ROUTINE CHEMICAL DOSIMETRY
All Sample Results
CHEMICAL
Ncwenber
< PEL
> PEL
NO. %
NO. %
VCM Lead Total Particulates
72 98.6 21 95.5
7 100.0
1 1.4 1 4.5 0 0.0
Beeenfcer < PEL ~y PEL NO. NO. %
75 96.2 20 95.2 8 100.0
3 1 0
3.8 4.8 0.0
Overexpo sure s JOB CLASS November Yard Operator
EXPOSURE 1.2 ppm, VCM
Color Weigh Compounder 279.4 Micrograms Lead/MJ
December Vinyl A Operator
9.6 ppm, VCM
Vinyl Shift Supervisor
jdf Af
1.4 ppm, VCM
General Mechanic
sk 196.4 ppm, VCM
SOURCE
Employee overexposed while checking for leaks in the VCM compressor shed.
Employee overexposed while performing his routine color weigh room duties.
Employee overexposed while changing the new unit VCM filters.
Employee overexposed while performing his routine duties. The exact cause of his overexposure has not yet been determined.
Employee overexposed while removing an old unit VCM charge pump from service to repair a leaking valve.
VAB.0001040129
Industrial Hygiene Monthly Report Page 2
A
Overexposures - Continued Color Weigh Compounder
* 310,8 Miprograms
Lead/MJ
Employee overexposed while performing his routine
color weigh room duties. The cause of this overexposure and the one shown above appears to be work practice deficiencies, which are being corrected.
Respiratory protection was worn. Respiratory protection was not worn.
Herald V. Uptaln
rah
c: JF, JWW, DWH, PJK, WFH, TFL, VEM, RAF, CWT Tom Grumbles, J. R. Drumwrlght, M.D. - Houston
VAB.0001040130
ABERDEEN CHEMICAL PLANT
CHEMICAL DOSIMETRY TRENDS
r
F11"111"1 lhM
I
11 I
|
i
lotal Particulates
VAB.0001040131
ABERDEEN CHEMICAL PLANT INDUSTRIAL HYGIENE MONTHLY REPORT
Month: October, 1986 Date of Report: November 19, 1986
I. ROUTINE CHEMICAL DOSIMETRY
All Sample Results CHEMICAL
PEL
%
^ PEL (OVEREXPOSURES) NO. %
VCM
86 98.9
Lead
22 100.0
Total Particulates
6 100.0
1
0 0
1.1
0.0
0.0
Overexposures
JOB CLASS Chief Operator
EXPOSURE
* 1.3 ppm, VCM
SOURCE
Employee overexposed while helping change VCM filter pack filters.
* Respiratory protection was worn.
II. RESPIRATORY PROTECTION
Two of the plant's 3M Alrhats were converted to "high efficiency" and reserved for use In asbestos handling work.
Employee face-fit testing was completed, using the services of Respiratory Protection Services.
III. VENTILATION
Preparations, including data sheets and control charts, were made for Compound Operations to begin measuring and charting ventilation hood airflows on a regular basis. At writing, the proposal is under study.
IV. MAINTENANCE PERSONNEL LEAD EXPOSURE
The Maintenance worker lead dosimetry program was successfully concluded, the results showing that there is minimal risk of Maintenance worker lead overexposure.
The average of the nine samples taken was 6.27 micrograms lead/m , one
standard deviation of the data amounting to 2.87 micrograms lead/M .
The resultant, "Three-sigma Upper Control Limit" of 14.88 micrograms lead/M*3 is well below any reasonable PEL related to maintenance work.
A
VAB.0001040132
Industrial Hygiene Monthly Report Page 2
A
V. SHORT TERM VCM EXPOSURES
Three, short-term VCM exposure measurements were made during the changing of old unit VCM filter pack filters. The measurements were made with REAL "Minimonitors" worn by two operators ("A" and "Bn, below), who performed the work. Both wore respiratory protection.
Operator
Equipment
Sample Time (Min.)
m Result (ppm, VCM)
Wind Conditions
A Old ttiit South FVCM Filter Pack
33.0
12.4
HE to SW, 0-5 Mffl
B Old liiit South FVCM Filter Pack
22.0
5.1 W to E, 2-3 Mffl
C
Old Ifait RVCM Filter Pack
18.0
16.6
W to E, 2-3 MPH
A concurrent area survey, using an HNU "Photoionizer", during the work done by Operator "A" was precluded by an unexpected meter failure. However, the presence of icing on the filters removed from the pack indicated that VCM was present in the area during the balance of the task.
A survey done during the work of Operator "B" on the FVCM filter pack showed that the initial concentration next to the filter pack head was between 15 and 20 ppm, VCM when it was first opened. During the balance of the task, VCM was detectable as far away as 25 feet directly east of the filter pack.
At initial opening, the concentration of VCM at the RVCM filter pack head was just under 20 ppm. As the work progressed, VCM was detectable up to 15 feet away.
These and previous results show that VCM is always present in hazardous amounts during filter pack changes in the immediate area of the work, the concentration and extent depending on the recovery efficiency achieved prior to each filter change. They also demonstrate the effect of wind conditions on subsequent dispersal of the VCM, indicating that intrusion of personnel not protected with respirators to within 40 feet of the work places them at risk. To prevent this. Operations and Safety are investigating the use of yellow, plastic chain as a boundary marker for the danger zones.
Jerald V. Uptain
rah
JF, JWW, DWH, PJK, WFH, TFL, VEM, RAF, CWT
Tom Grumbles, J. R
- Houston
VAB.0001040133
ABERDEEN CHEMICAL PLANT INDUSTRIAL HYGIENE MONTHLY REPORT
Months: November and December, 1986 Date of Report: January 26, 1987
ROUTINE CHEMICAL DOSIMETRY
All Saaple R.sults
CHEMICAL
Ndvsnber
X PH,
> PEL
ND, NO. %
VCM Lead Total Particulates
72 98.6 21 95.5
7 100.0
1 1.4 1 4.5 0 0.0
< PEL
NO. X
V PEL ND. %
75 96.2 20 95.2 8 100.0
3 1 0
3.8 4.8 0.0
erexposures
-
JOB CLASS November Yard Operator
EXPOSURE
r
* 1.2 ppm, VCM
SOURCE
Employee overexpos checking for leaks In the VCM compressor shed.
Color Weigh Compounder 279,4 Micrograms Lead/M3
December
Employee overexposed while performing his routine color weigh room duties.
Vinyl A Operator Vinyl`Shift Supervisor
9.6 ppm, VCM
A 1.4 ppm, VCM
General Mechanic
* 196.4 ppm, VCM
Employee overexposed while changing the new unit VCM filters,
Employee overexposed while performing his routine duties. The exact cause of his overexposure has not yet been determined.
Employee overexposed while removing an old unit VCM charge pump from service to repair a leaking valve.
VAB.0001040134
Industrial Hygiene Monthly Report Page 2
A
Overexposures - Continued
Color Weigh Compounder 310*8 Micrograms Lead/M3
* Respiratory protection was worn. ** Respiratory protection was not worn
Employee overexposed while performing his routine color weigh room duties. The cause of this overexposure and the one shown above appears to be work practice deficiencies, which are being corrected.
erald V. Uptain rah
t
c: JF, JWW, DWH, PJK, WFH, TFL, VEM, RAF, CWT Tom Grumbles, J. R. Drumwright, M.D. - Houston
I
VAB.0001040135
ABERDEEN CHEMICAL PLANT CHEMICAL DOSIMETRY TRENDS I
Lead
- +
+i
100
"""I
H
Total Particulates
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.I
Jan.
Feb,
Mar. Apr. May
June July
Aug. Sept.
Oct. Nov. Dec. Jan. Feb. Mar. Apr. May
June July Aug. Sept. Oct.
Nov. Dec. Jari. Feb,
Mar. Apr. May June
Luty
Aug. Sept. Oct.
!
| Nov.
1
Dec.
.rwr:
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VAB.0001040136
t
ABERDEEN CHEMICAL PLANT INDUSTRIAL HYGIENE MONTHLY REPORT
Month: September, 1986 Date of Report: October 27, 1986
ROUTINE CHEMICAL DOSIMETRY
All Sample Results
CHEMICAL
>PEL (OVEREXPOSURES)
NO.
F"
VCM Lead Total Particulates
82 98.8 20 95.2
5 100.0
1 1 0
1.2
4.8
0.0
Overexposures
JOB CLASS General Mechanic
Compounder
EXPOSURE A
3.1 ppm, VCM
*
53.6 Micrograms Lead/M'3
SOURCE
Employee overexposed while repairing a leak at the VCM compressor shed.
Employee overexposed while charging Line I blenders.
The exact cause of overexposure has not been determined.
his yet
* Respiratory protection was worn.
II. EMPLOYEE ANNUAL HEALTH TRAINING
Eight, annual health training classes were held. The training Included OSHA required Instruction related to VCM, lead, asbestos, noise, and respiratory protection.
III. MAINTENANCE PERSONNEL LEAD EXPOSURE
The Maintenance worker lead dosimetry program continued through the month. The measurements, using the same protocols as with routine, Compound/Dry Blend personnel lead dosimetry, are made as maintenance work within potential lead exposure areas Is performed. The results for the month are as follows:
Job Class
TWA
Result
^
(Micrograms Lead/M;
General Mechanic
4.1
General Mechanic General Mechanic
6.0
5.4
VAB.0001040137
mm mm
Ml m
r
Industrial Hygiene Monthly Report Page 2
III* MAINTENANCE PERSONNEL LEAD EXPOSURE - continued
Job Class
TWA
Result
~
(Micrograms Lead/M ;
General Mechanic
13.8
General Mechanic
4.2
General Mechanic
^ 4.5
PEL (Micrograms Lead/M;
50.0
44.4
47.1
Tom Grumbles* J. R. Drumwright, M.D. - Houston
VAB.0001040138