Document DG3oxLMBm0Y908Q9p264vrzro
REV 8(E)
1
INDUSTRIAL HYGIENE REPORT
The asbestos in air monitoring for the first half of 1981 has been completed in the Chlorine block. Survey results were below the acceptable threshold limit value of 2 fibers per cubic centimeter greater than five (5) microns in length.
The highest sample recorded was 1.69 fibers per cc of air. Due to the low results obtained in routine time-weighted sampling, it is recommended that short duration excursion sampling be empha sized in future surveys.
Good housekeeping, strict safe operating procedures, and a constant vigil for problem areas are the most important con siderations for a successful abatement program. Employees must be informed of the survey results and must review the consequences of over-exposure to asbestos fibers. (See Attachment 2.)
il S iRlBUTION
LOUISIANA
MIDLAND
M. F. Currier
G. W. Daigre A. J. McKirdy C. L. Melancon R. . Peebles *W. J. Neely C. J. Weber, Jr.
File (2)
2303 2501
3701 4701 5601
2306 5601 2501
L. W. Rampy - 1803 M. Swank - 1803
*F. D. Axe - Pittsburg *R. L. Daniel - Freeport *S. A. Goode - 0CD *R. J. McCormick -
Strongsville *R. D. Olsen - Sarnia
DO 09745,4 0ONFTD5NTTAI
-2-
INTRODUCTION
The required asbestos in air monitoring for the first half of 1981 has been completed. The survey serves to protect the employees against over-exposure, pinpoint problem areas and fulfill the requirements of the Federal Occupational Safety and Health Act.
DISCUSSION
In addition to everyday safety equipment, operators are required to wear disposable paper suits, rubber gloves and proper dust respirators when handling or working with asbestos. The safe procedure for handling asbestos should be discussed with each new employee before entering the work area and reviewed annually with the experienced operators as part of the ongoing Industrial Hygiene Education Program.
EXPERIMENTAL
Sampling Method
Personnel samples are collected from the operators' breathing zone with a millipore filter (37 mm diameter; 0.8 micron pore size) mounted on an open-face filter holder and attached to the operators' lapels. These cassettes are connected to monitoring pumps calibrated with a soap bubble meter to operate at a rate of 1.5 to 2.0 liters per minute.
Area samples are collected utilizing the same equipment and method as the personnel samples.
Analytical
The asbestos samples are analyzed using the NIOSH Aproved Method, P & CAM 239.
RESULTS (See Attachment 1)
Monitoring results of 13 samples indicate all samples were below the present exposure limit of 2 fibers > 5 microns in length per cubic centimeter. Highest recorded sample was 1.69 fibers per cc.
Twelve personnel samples were collected from the operators' breathing zones. A high of 1.69 fibers per cc was recorded.
The one area sample recorded a high of 0.27 fibers per cc while located on the tow motor moving asbestos on pallets.
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-3RECOMMENDATIONS Short-term excursion sampling is recommended in future sampling to better determine if problems exist in some jobs. CONCLUSIONS The monitoring results were satisfactory and well below the established exposure limit of two fibers per cubic centimeter. However, due to the hazardous nature of asbestos, housekeeping and good safe operating procedures remain the most important con siderations for a good abatement program. This must be a daily, job-by-job program to offer the greatest protection to the employee. The Chlorine employees must be informed of this survey's results and the consequences of over-exposure reviewed. (See Attachment 2.) sb
00 097458 CONFIDFNTTAl
ATTACHMENT 1
DATE 4/15/81
SAMPLE NO.
2056
SAMPLE DESCRIPTION
DURATION (MIN)
Personnel - OT - Pulping cells with pulp wagon
40
4/15/81
2057
Personnel - SOT - Pulping cells with pulp wagon
40
4/20/81
2058
Personnel - OT - Filled pulp wagon at Cell Service
45
4/20/81
2059
Personnel - OT - Pulping cells with pulp wagon
80
4/20/81
2060
Personnel - SOT - Pulping cells by hand
60
4/20/81
2061
Personnel - SOT -Pulping cells with pulp wagon
45
4/24/81
2062
Personnel - OS - Pulping cells by hand
45
4/24/81
2063
Personnel - SOT - Pulping cells by hand
75
4/28/81
2064
Personnel - OT - Pulping cells by hand
33
4/28/81
2065
Personnel - SOT - Pulping cells by hand
33
4/29/81
2066
Personnel - SOT - Handling asbestos in warehouse
30
4/29/81
2067
Area - attached to forklift
30
while moving asbestos on pallets/
5/1/81
2068
Personnel - Filling pulp wagon at Cell Service
100
VOLUME (1)
68.0
FIBERS/CC > 5 MICRONS
IN LENGTH
0.07
68.0
0.04
81.0
0.03
140.0
0.24
79.5
1.69
64.125
0.05
70.875
0.17
101.25 52.8
0.63 1.02
56.1
0.22
50.25
0.15
36.0 160.0
0.27 0.09
no 09745?
00NFTDFNTTA1
C O-'MOunq;
ASBESTOS
eyes:
CONTACT WITH PTE DUST CAN CAUSE MECHANICAL IRRITATION SIMILAR TO PJAT CAUSED BY AMY SOLID PARTICLE.
Skin:
UNLIKE FIBROUS GLASS, THE FIBERS CO NOT CAUSE UlSCOMI COR MCCi-'AN) cal IRRITATION.
] NGLSTJ ON."
SOME EVIDENCE SUGGESTS PMAT LONG TERM INGESTION OF ASBESTOS MAY INCREASE CHANCES OP STOMACH CANCER.
DUST INHALATION:
SHORT TERM: HIGH CONCENTRATIONS (WELL ABOVE ACCEPTABLE LEVELS) MAY CAUSE ONLY MODERATE DISCOMFORT fROM MECHANICAL IRRITATION.
LONG TERM: PTE FIBERS CAN CAUSE SCARRING. OF PHE LUNGS (ASBESTOSJS). ' A CANCER OF THE CHEST LINING (MESOTHELIOMA) MAY ALSO RESULT FROM ASBESTOS EXPOSURE. IMOST IMPORTANT, ASBESTOS EXPOSURE AND CIGARETTE SMOKING GREATLY INCREASE THE RISK OF LUNG CANCER.
J HG:
ACGIH TLV JS 2 FIBERS/CC
AUTHOR:
G. H. FLORES
CHECKED BY:
R. L. DANIEL - INDUSTRIAL HYGIENE G. C. JERSEY - TOXICOLOGY R. E. FLAKE - MEDICAL
ISSUE DATE:
REVISED: 6-6-80
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DO 097458 CONFIDENT IA1