Document YGaRQk4J3VJ2O738g0YZdx4x8

LOUISIANA DIVISION INDUSTRIAL HYGIENE REPORT AN OPERATING UNIT OF THE DOM CHEMICAL COMPANY DEPARTMENT FILE NUMBER TITLE CHLORINE 1 LAD-CL^-8801 CHLORINE I INDUSTRIAL HYGIENE REPORT 1988 AUTHOR'S SIGNATURE REVIEWER''S SIGNATURE v .' DATE 8-25-89 aimMAlW/BUCPMMEMPAIISZtia 1. Suimary: The employees that had a likelihood for exposure in their jobs to chlorine were monitored using approved sampling and analytical methods. A noise survey for the entire plant was also conducted. 2. Conclusions and Recomnendations: Results from the chlorine monitoring showed no significant changes in the exposure levels to employees. The monitoring of chlorine will continue for 1989j Results from the previous 3 years (1985/86/87) for asbestos and caustic mist indicated no potential problems. These sanples were not collected for 1988. rf*--. The noise survey showed no areas; with noise levels above 94DB. DISTRIBUTION Louisiana Division *L. D. Adcock, 2306 *H. M. Bell, 4701 Dr. M. Currier, 2303 KXYK'YXKKtfYYTIfiriWSnXiJWX S. G. Cole, 3502E Dr. G. Kusch, 2303 Cover Sheet Only Midland *L. W. Rampy, 1803 M. G. Swank, 1803 *J. E. LeBeau, 1803 *G. W. Engdahl, 1803 *R. D. Olson, 1803 *S. M. Gorgacz, 258 A. W. Schaffer, 1803 Rxxxmxicaoxxieoac Other *F. D. Axe, Pittsburg G. L. Meier, Strongsville *J. A. Vopicka, Sarnia *D. E. Crager, Freeport DO A 110642 CONFIDENTIAL. RESTRICTED FOR USE WITHIN THE DOM CHEMICAL COMPANY ONLY INDUSTRIAL HKGHNE AOOCMPLrflHMEWrB - 1388 1. I-H Training Canpleted training for Operations and Oontract personnel. 2. Personnel Monitoring Monitoring for chlorine was conducted on all classifications in the plant. 3. Noise Survey Overall noise levels were dcwn due to installation and repair of insulation in the plant. 4. Asbestos Removal Removed several large sections of asbestos insulation fran the plant. This will continue through 1989. 5. PCB Contaminated Oil and Equipment Removed four obsolete PCB contaminated pieces of equipment. Approximately 20,000 gallons of PCB contaminated oil was treated and re-classified as nan-contaminated. M. J. Torres Chlorine I 8/25/89 gsh DO A 110643 CONFIDENTIAL SAMPLING AND ANALYTICAL ME2HXS 1. Chlorine: Monitoring is done utilizing a ''Wolcott" chlorine sensor probe interfaced with a microprocessor for obtaining results. Both time weighted average and excursion data can be obtained using this equipment. 2. Noise: Area surveys are conducted using a Model 2205 Bruel & Kjaer Sound Level meter. M. J. Torres Chlorine 8/25/89 gsh D0 A 110644 CONFIDENTIAL CHLORINE EXPOSURE EVALUATION Explanation of Guidelines and Sampling Method The OSHA exposure limit for chlorine is a 1 ppn ceiling limit. A ceiling limit is an exposure limit that should not be exceeded far any period of time. Operators are required to carry mouthbit respirators at all time. These are designed for escape purposes only. If required to work in a chlorine atmosphere, half-face or full-face respiratory protection must be utilized. Exposure Chlorine gas is irritating to the eyes, nose, throat, and lungs. At high concentrations there can be a turning sensation to the skin. Personnel Monitoring Forty-eight full shift samples were collected in 1988. All time-weighted average exposures were belcw 0.1 ppm. Several samples contained peak or excursion levels that exceeded 1 ppm. The attached Data Summary Table contains the highest 30 second chlorine concentration from each full shift personnel sample taken as part of the Dow-Tulane Chlorine Epidemiology Study. For the most part, the data has not changed substantially from 1987 to 1988. The respirator usage switch activity which is recorded by the data logger shews that respiratory protection was worn during many of the excursions. Sampling Strategy Plan Sampling strategy will continue as in the past three years, collecting data from all job classifications. Because the Dcw-Tulane Chlorine Epidemiology Study is coming to a close, the number of samples collected will be reduced during 1989. M. J. Torres Chlorine I 8/25/89 gsh DO A 110A45 CONFIDFNTTAL. 1988 I1CIUSTRIAL HYGIENE SURVEY SUMAKY It is the responsibility of employers to annually determine employee exposure to potential health hazards in the work area and report the results to all involved personnel. The employee is also to be informed of the toxic and hazardous properties of these chemicals and physical agents, the limits they may be exposed to without danger, the symptoms of overexposure, and what they should do to prevent overexposure. ENV L HAZARDS M3NTTORED IN CHLORINE T RTfX-g CHLORINE NOISE i pem Ceiling 85 db(A) M. J. Torres Chlorine I 8/25/89 gsh D0 A 110646 CONFTDFNTTAL