Document mqzOJG7JyvEJMQ1pX2E3q5jDZ

PPG INDUSTRIES, INC. INDUSTRIAL CHEMICAL DIVISION LAKE CHARLES, LOUISIANA LD-1121E JAN 1 6 1373 CONTINUING PROGRAM OF MONITORING ATMOSPHERIC CONTAMINANTS WITHIN THE LAKE CHARLES PLANT by Mark Wood December 29, 1972 Distribution W. P. Graybill H. 1. Hoenes, ' r* H. B. Lovejoy D. L. Duncan,^' / M. Davis C. Burns M. Burns T. Taylor r'iir' lS\\\j R. Eakin R. Kaspar E. McVicker W. Chapman \ C. P. LeBlanc Central Files - G.O. Lee Grant Zeb Bell Technical Files (61 Author Laboratory Ejle Key Words Occupational Environment Atmospheric Contaminants Monitaire Sampler MSA Universal Pump Andersen Mini Sampler Electrostatic Precipitation Unico Gas Detector Mercury Vapor Detector OSHA Silver Wool Mercury Monitor Hydrogen Sulfide Detector SL 093284 LABORATORY DEPARTMENT MARK WOOD TECHNICAL REPORT DECEMBER 29, 1972 CONTINUING PROGRAM OF MONITORING ATMOSPHERIC CONTAMINANTS WITHIN THE LAKE, CHARLES PLANT LD-1121E ABSTRACT The tables composing this report are continuations of occupational environment surveys started early in 1969 and contain data from all plant areas from May 1972 to December 1972. INTRODUCTION The periodic investigation of employee's occupational environments initiated in 1969 is described in detail in LD-1121. This report is an addendum and contains tabulated data collected from May 1972 through December 1972. DISCUSSION In addition to routine area monitoring for mercury vapor, a new method has been developed and used. Eight-hour personnel monitoring using silver wool as a mercury adsorber has been used on several employees in the Mercury Circuit Area and results are reported in Table 1. A description of the silver wool method is reported in LD-1324. Another additional survey reported in Table 1 is hydrogen sulfide monitoring of individuals working around the sulfide sump and the mercury settling pond. A very sensitive badge detector manufactured by Metronics Associates was employed. Heat stress analyses are not reported since OSHA has adopted these measurements only to determine areas that would fall under the classification of potential heat stress working environments. Sufficient data have been collected in the Diaphragm Cells and Mercury Circuit Areas to warrant a program of heat stress prevention measures as outlined by OSHA for potential high heat exposure work places. Results of occupational environment surveys, tabulated by areas, are appended. Table 7 on the Sodium Chlorate Plant has been deleted. Author: Approved: MW: rw SL 093285 SL 093286 Threshold Limit Values of Airborne Contaminants and Physical. Agents (Existing within the Lake Charles Plant) LD-1121E/4 Contaminant Ammonia Chlorine Hydrogen Chloride Hydrogen Sulfide Lead Mercury Methyl Chloroform Per chloroethylene Phosgene Sodium Hydroxide Trichloroethylene Vinyl Chloride Mineral Lusts Nuisance Dust Asbestos Silica Pigments T.L.V. Concentration 50 ppm (intended change 25 ppm) 1 ppm 5 ppm 10 ppm 0.20 mg/M3 (Intended change - 0.15 mg/M3) 0.05 mg/M3 350 ppm 100 ppm 0.1 ppm 2 mg/M3 100 ppm 500 ppm (intended change - 200 ppm) 10 mg/M3 5 fibers > 5 p/ml 6 mg/M3 (adopted by PPG Industries, Inc. From: 1971 Edition, Threshold Limit Values of Airborne Contaminants Adopted by ACGIH (American Conferences of Governmental Industrial Hygienists) Federal Register, Volume 36, Number 105, p 10503-10506. SL 093287 TABLE 1 OCCUPATIOHAL EHVIROHMEHT AIR MONITORING Area Monitored Personnel Mercury Cell Circuit Cell Operator Date-Time 11-7-72 (A.M.) Contaminant Concentration Conditions Chlorine 0.5 ppm Cell Auxiliary Operator Ditto Ditto 0.5 ppm Cell- Repairman Ditto Ditto 0.5 ppm Cell Cut-Out Man Ditto Ditto 0.75 ppm Cell Operator 11-7-72 (A.M.) Cell Auxiliary Op erator 7-31/8-4-72 Average of 5 eight hour exposures 11-7-72 (A.M.) Cell Repairman 7-2A/7-28-72 Average of 5 eight hour exposures 11-7-72 (A.M.) Mercury 0.05 mg/M3 Ditto Ditto 0.070 mg/M3 < 0.05 mg/M3 Ditto Ditto 0.053 mg/M3 < 0.05 mg/M3 Method Monitaire Sampler Ditto Ditto Ditto Monitaire Sampler Silver Wool Personnel Monitor Monitaire Sampler Silver Wool Personnel Monitor Monitaire Sampler 6 s SL 093288 Area Monitored Personnel Mercury Cell Circuit Cell Cut-Out Man (I) Cell- Cut-Out Man (II) TABLE 1 (COHT'D.) OCCUPATIONAL ENVIRONMENT AIR MONITORING Date-Time 7-24/7-28-72 Average of 5 eight hour exposures Ditto 11-7-72 (A.M. ) Contaminant Concentration Conditions Mercury O.069 rcg/M3 Ditto Ditto O.061 mg/M3 0.05 mg/M3 Cell Auxiliary Operator 11-7-72 (A.M.) Brine Area Operator Ditto hydrogen Sulfide < 0.01 ppm Ditto < 0.01 ppm - Method Silver Wool Personnel Monitor Ditto Monitaire Sampler H2S Badge Ditto LD -H 21E /6 SL 093289 2L--22>3 {Rev. 10/o5) Ir.'r orator/ Lunch K;aa Ko. of People Rest Roon Locker Roots iUJLUJ (-- I-SRClCTf IT? -AIR AT HERCUKf CELL in aa/E-P") 0.010 Control Room 0.015 ..0*035-- 6 0.015 0.010 Office . 0.010, - Motor Control ..0,060 Area Maintenance 0.010 13.8 KV Sw. Gr. 0.005 ; Date: . 5/3-11/20/72 (Average of 30 Surveys) H2 Stack Area 00.010 Open Cello Relative KualAltv Temperature Maintenance Lunch Roots 0Q..QQ5 LD -1121E/7 Surveys taken with J-W Lemaire Mercury Sniffer, Model MV-2. L - Ground Floorf SL 093290 Area Brine Treatment/ Liquefaction Monitored Personnel Liquefaction Operator Brine Treatment Operator TABLE 5 OCCUPATIONAL ENVIRONMENT AIR MONITORING Date-Time Contaminant Concentration Conditions. 11-8-72 (A.M.) Chlorine 0.75 ppm Ditto Ditto 0.5 ppm Liquefaction Operator Brine Treatment Operator 12-8-72 (A.M.) . Ditto Asmonia Ditto 8 ppm < 5 ppm -* Method Monitaire Sampler Ditto Monitaire Sampler Ditto LD -1121E/8 SL 093291 Area Caustic Plant Monitored Personnel Evaporator Operator Area Janitor x&eusJl OCCUPATIONAL ENVIROHMEKr AIR MOMITORIHG Date-Time Contaminant Concentration Conditions .11-8-72 Ditto Chlorine Ditto 0.5 ppm 0.5 ppm - - Evaporator Operator Area Janitor 11-8-72 {A.M.) Ditto Caustic Bird Area - 11-8-72 (A.M.) Ammonia Ditto < 5 ppm < 5 ppa NaOH Mist 0.2 mg/M3 - - - PE LS/Anhydrous Operator 11-11-72 (A.M.) Chlorine 0.5 ppm - Method Monitaire Sampler Ditto Monitaire Sampler Ditto Water Scrubber/ Atomic Absorption Sodium Anal. Monitaire Sampler SL 093292 f u H to s VO Area Diaphragm Cell Circuits Monitored Personnel Tender, Circuits 1,2 Tender, Circuits 5,6 Tender, Circuits 7,8 Operator TABLE 5 OCCUPATIONAL EWTOCMHEliT AIR MONITORING pate-Time Contaminant Concentration Conditions 11-9-72 (A.M.) Chlorine < 0.5 ppm Ditto Ditto < 0.5 ppm Ditto Ditto Ditto Ditto < 0.5 ppm < 0.5 ppm Method Monitaire Sampler Ditto Ditto Ditto L D -1 1 2 U 3 /1 0 SL 093293 Area Diaphragm Cell Repair and Manufacturing Monitored Personnel Lead Pot Area Solder Wiping Area Repairman Diaphragm Depositor Acid Dipping Tank Area 1. Respirator necessary TABLE 6 OCCUPATIONAL ENVIRONMENT AIR MONITORING Date-Time Contaminant Concentration Conditions 11-10-72 (P.M.) Lead < 0.05 mg/M3 Pouring Lead Ditto Ditto 0.05 mg/M3 Wiping tinned bus bars. 11-15-72 (P.M.) Chlorine <0.5 ppm - 10-19-72 (A.M.) 10-24-72 (A.M.) 11-29-72 (P.M.) 11-29-72 (P.M.) 11-29-72 (P.M.) Asbestos Ditto Hydrogen Chloride Ditto Ditto 0.68 Fibers - > 5 microns/ml 1.15 Fibers ^ - 5 microns/ml 25 ppm1 10 ppm?2 ppm1 While dipping cathodes. While washing cathodes. While drying cathodes. Method MSA Universal Pump with Lead Kit Ditto Monitaire Sampler Personnel Monitaire with Filter Ditto MSA Universal Pump. Ditto Ditto SL 093294 Area Power Houses Monitored Personnel "A" Watch Engineer "B" Watch Engineer TABLE 8 OCCUPATIONAL ENVIRONMENT AIR MONITORING Date-Time Contaminant Concentration Conditions 11-11-72 (A.M.) Chlorine < 0.5 ppm Ditto Chlorine < 0.5 ppm Method Monitaire Sampler Ditto jr/nt^n-cn SL 093295 Area Silica Pigments (see note for locations of sampling) Monitored Personnel C D E F TABLE 9 OCCUPATIONAL ENVIRONMENT AIR MONITORING Date-Time 9-13-72 (A.M.) Ditto Ditto Ditto Contaminant Concentration Conditions Particulates 1.3 iag/M3 Loading Ditto Ditto Ditto 4.9 mg/M3 9.4 mg/rf3 22.6 Loading Bagging and Loading Ditto Method Electrostatic Precipitation Ditto Ditto Ditto Sampling 9-13-72 personnel wearing Midget Cascade Impactor while sampling above points - 1-1/2 hours (A.M.) Furnace Building Upper Floor 11-7-72 (A.M.) Total 9.9 mg/M3 Particulates Respirable Portion 2.2 mg/M3 or 22% Respirable (wind E at 7 mph) NaOH Mist 0.2 mg/M3 Andersen Mini-Sampler Water Scrubber/ "AA" Sodium Analysis SL 093296 6 k i-* 1 Area Organics Area (see map for sample locations) Monitored. Personnel 1 thru 9 1 thru 9 5 8 All other points 3 4 1 thru 9 3 4 8 9 TABLE 10 OCCUPATIONAL ENVIRONMENT AIR MONITORING Date-Time 9-11-72 Contaminant Concentration Conditions Phosgene None Detected l4 mph ESE wind 9-11-72 9-U-72 9-11-72 Methyl Chloroform Per/Tri None Detected l4 mph ESE wind 10 ppm 14 mph ESE wind Per/Tri 10 ppm Ditto 9-11-72 9-11-72 9-11-72 9-11-72 Per/Tri None Detected Ditto Vinyl Chloride None Detected 14 mph ESE wind Ditto None Detected Ditto Carbon None Detected 14 mph ESE wind Tetrachloride 9-11-72 9-11-72 9-11-72 9-11-72 hydrogen Chloride Ditto Ditto Ditto None Detected 14 mph ESE wind None Detected Ditto None Detected Ditto None Detected Ditto Method 1 Unico Gas Detection Tubes Uni co Gas Detection Tubes Uni co Gas Detection Tubes Ditto Ditto Unico Gas Detection Tubes Ditto Unico Gas Detection Tubes Unico Gas Detection Tubes Ditto Ditto Ditto w P ro s SL 093297 SILICA FIGMENTS AREA PARTICULATE AIR SAMPLING LOCATIONS LD-1121l'j/l5 A Downstairs in Frit Reactor area of Furnace Building B Upstairs, over the south end of the furnace In Furnace Building C Northeast corner of the Pigments Shipping Building where trucks and boxcars are loaded D Center of Pigments Shipping Building, under North-South conveyors E On the Bagging Platform between Baggers in Pigments Shipping Building F Center of Lower Roadway leading out the west door of Pigments Shipping Building, adjacent to Bagging Area and Hopper Car Loading SL 093298 Organics Area Sampling Points LD-1I21E/16 SL 093299