Document rO0rZbGo99yBro4n8BxJ394E

c PPG INDUSTRIES, INC. INDUSTRIAL CHEMICAL DIVISION TAKE CHARLES, LOUISIANA LD-1121D CONTINUING PROGRAM OF MONITORING ATMOSPHERIC CONTAMINANTS WITHIN THE LAKE CHARLES PLANT Distribution W. Graybill H. J. Hoenes, Jr. H. B. Loveo'oy D. Duncan M. Davis C. A. Burns M. G. Burns T. Taylor R. Kaspar E. McVicker W. Chapman C. P. LeBlanc Central Files - G.O. Technical Files (6) Author Laboratory File by Mark Wood May 12, 1972 Key Words Occupational Environment Atmospheric Contaminants Montaire Sampler MSA Universal Pump Andersen Mini Sampler Electrostatic Precipitation Unico Gas Detector Mercury Vapor Detector OSHA Heat Stress ACGIH Asbestos Fibers Wet Bulb Globe Temperature c LABORATORY DEPARTMENT' MARK WOOD c TECHNICAL REPORT MAY 12, 1972 CONTINUING PROGRAM OF MONITORING ATMOSPHERIC CONTAMINANTS WITHIN THE LAKE CHARLES PLANT LD-1121D ABSTRACT The tables composing this report are continuations of occupational environ ment surveys started early in 19^9 and contain data from all plant areas from November 1971 to May 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 November 1971 through May 1972. DISCUSSION The methods and sampling times stated in previous reports have not been changed. Two additional surveys are included in anticipation of more rigid regulations. The first addition. Table 11, is airborne asbestos with regard to diaphragm cell manufacturing and maintenance insulators. The second, Tables 12 and 15, is heat stress analysis in Mercury Circuit and Diaphragm Areas. Airborne asbestos samples were taken with personnel monitoring equipment pulling an air sample through a membrane. The membranes were sent to Barberton for sizing and counting of the asbestos particles. Heat stress measurements were accomplished using natural wet bulb,-dry bulb, and globe thermometers as outlined in the "Notice of Intent to Establish" section of the 1971 American Conference of Governmental Industrial Hygienists booklet. For each job classification where men work in high heat exposures, a threshold limit value is obtained from their energy output. The exposure is expressed as degrees wet bulb-globe temperature. WBGT takes into consideration variables such as radiant heat and evaporative effect due to air currents and humidity. Since some threshold limit values have been changed, a new tabulation of these values is appended. Results of these surveys, tabulated by areas, are appended. Table 7 on sodium chlorate has been removed. Author: MW:rw Approved: C. P. LeBlanc Date | BB 0000176 | rc LD-1121D/4 Threshold Limit Values of Airborne Contaminants and Physical Agents (Existing within the Lake Charles Plant) Contaminant_____ Ammonia Chlorine Hydrogen Chloride Lead Mercury Methyl Chloroform Perchlorethylene Phosgene Sodium Hydroxide Trichlorethylene Vinyl Chloride Mineral Dusts Nuisance Dust Asbestos Silica Pigments Heat Stress T.L.V. Concentration 50 ppm (intended change - 25 ppm) 1 ppm 5 ppm 0.20 mg/M3 (intended change - 0.15 mg/M3) 0.05 mg/M3 550 ppm 100 ppm 0.1 ppm 2 mg/M3 100 ppm 500 ppm (intended change 200 ppm) 10 mg/M3 20 m.p.p.o.f. (intended change - 5 fibers > 5 p/ml) 6 mg/M3 (adopted by PPG Industries, Inc.) See graph - page LD-1121D/5 From 1971 Edition, Threshold Limit Values of Airborne Contaminants Adopted by ACGIH (American Conferences of Governmental Insustrial Hygienists). j BB 0000 177J. c( LD-1I21D/5 pi'ioposep U/Mis FOK HA7-- vJOU K STRFi ( Source. ; ACGtfH -tf?/ 100 200 ' 300 400 500 kcal / hr. BB 0000178 1 \ TAELE 1 OCCUPATIONAL ENVIRONMENT AIR MONITORING Area Monitored Personnel Date-Time Contaminant Concentration Conditions lercury Cell Circuit Cell Operator 5-15-72 (A.M.) Chlorine l/2 ppm - Cell Auxiliary Operator Ditto Chlorine < 1/2 ppm - Cell Repairman Ditto Chlorine <l/2 ppm - Cell Cut-Out Man Ditto Chlorine l/2 ppm ** Cell Operator 5-15-72 (A.M.) Cell Auxiliary Operator Ditto Mercury Mercury 0.05 mg/M3 0.10 mg/M3 Numerous Cells being Cut Out Ditto Cell Repairman Ditto Mercury <0.05 mg/M3 Ditto Cell Cut-Out Man Ditto Mercury 0.10 mg/M3 Ditto Method Monitaire Sampler Ditto Ditto Ditto Monitaire Sampler - L D -I1 2 1 D /6 BB 0 0 0 0 1 7 9 l-- 1 l Ii l i l l t l I l i ll i- 1 l Iitev. '0/69) Laboratory Lunch Room No. of People Rest Room Locker Room MERCURY 1:1 AIR ACCRY CEIL (llg in ics7 0.008 o.o4o 6_____ 0.020 0.013 Control Room Cffice Motor Control Area Maintenance 13.8 KV Sw. Gr. * 0.012 0.010 0.026 0.013 0.003 16 0.006 Date: ll/l6/71 thru^J/772 (Average of 33 surveys) Ha Stack Area < 0.003 Open Cells __I Relative Humidity Temperature - Maintenance Lunch Room < 0.003 If LD-1121D/7 t 1 I cr t I J t CO * II ICt Io Io1 1-i 1 CO I I c-1 I> I- t Surveys taken with J-W Lemare Mercury 'Sniffer, Model MV-%. L - Ground Floor TABLE $ OCCUPATIONAL ENVIRONMENT AIR MONITORIMG Monitored Personnel Date-Time Contaminant Concentration Conditions Method Liquefaction Operator 3-17-72 (A.M.) Brine Treatment Ditto Operator Chlorine < 1/2 ppm Chlorine < l/2 ppm Liquefaction Operator Brine Treatment Operator 3-17-72 (A.M.) Ditto Ammonia < 5 ppm Ammonia < 5 ppm Monitaire Sampler Ditto Monitaire Sampler Ditto Al'L Caustic PI; it l-- i i1 1 tr 1 11 tt !1 lo1 lo1 t1 io1 !l f to 1 11 1-- 1 TABLE 4 OCCUPATIONAL ENVIRONMENT AIR MONITORING Monitored Personnel Date-Time Contaminant Concentration Conditions DH Operator 3-16-72 (A.M.) Chlorine < l/2 ppm "A" Evaporator Operator Ditto Chlorine < 1/2 ppm Filter Operator Ditto Chlorine 1/2 ppm Lead Operator Ditto Chlorine < l/2 ppm * DH Operator 3-16-72 (A.M.) "A" Evaporator Operator Ditto Filter Operator Ditto Lead Cperator Ditto Ammonia Ammonia Ammonia Ammonia < 5 ppm < 5 ppm < 5 ppm < 5 ppm Caustic Bird Area 4-20-72 (A.M.) NaOH Mist 0.2 mg/fP PELS/Anhydrous Operator 3-17-72 (A.M.) PELS Shipping 4-03-72 (A.M.) Packer Chlorine Chlorine < l/2 ppm < l/2 ppm Method Monitaire Sampler Ditto Monitaire Samp -r Ditto Monitaire Sampler Ditto Ditto Ditto Water Scrubber/ Atomic Absorption Sodium Anal. Monitaire Sampler Ditto _L1 .Area Diaphragm Cell Circuits I TABLE $ OCCUPATIONAL ENVIRONMENT AIR MONITORING* I Monitored Personnel Date-Time Contaminant Concentration Conditions Tender, Circuits 1,2 3-14-72 (P.M.) Chlorine l/2 ppm Tender, Circuits 5,6 Ditto Chlorine l/2 ppm Tender Circuits J,d Operators Ditto Ditto Chlorine Chlorine 1/2 ppm 1/2 ppm Method Monitaire Sampler Ditto Ditto Ditto \-- i 1l I cr i IDI II 1OI Io( I OI ICI II I CO t I La I I1 I-- I IOrt* Ht) HO  TABLE 6 OCCUPATIONAL ENVIRONMENT AIR MONITORING Area Diaphragm Cell Repair and Manufacturing Monitored Personnel Late-Time Lead Pot Area 3-14-72 (No. 3) Lead Pot Area (No. 3) Ditto Contaminant Concentration Conditions Lead 0.05 mg/M3 Removing graphite chips. Lead < 0.05 mg/M3 Pouring Lead Lead Pot Area (Ko. 6) Solder Wiping Area Ditto Ditto Lead Lead <0.05 mg/M3 Pouring Lead <0.05 mg/M3 Wiping Solder Wiping Area Ditto Lead <0.05 mg/M3 Not Wiping . Method MSA Universal Rarrp vith Fb Kit Ditto Ditto Ditto Ditto Repairman at Mastic Area 3-14-72 Chlorine < l/2 ppm Monitaire Sampler l Ii-- t * i1 ti to1 |o 1 ol lot 1 1 -IX * i:i Repairman at Acid Dipping Area 5-11-72 (A.M.) 5-11-72 (A.M.) Ditto Hydrogen Chloride Hydrogen Chloride Hydrogen Chloride < 1 ppm 2 ppm 10 ppm Submerging cathodes. Raising cathodes. MSA Universal Test Kit Ditto Draining cathodes. (Respirator in use.) Ditto t) t Ha i? % .rea 'over-houses Monitored Personnel "A" Watch Engineer "A" Utility Operator "B" Watch Engineer TABLE 8 XCUPATIOML ENVIRONMENT AIR MONITORING Date-Time 4-3-72 (A.M.) Contaminant Concentration Conditions Chlorine < 1/2' ppm Ditto Ditto Chlorine <1/2 ppm Chlorine < 1/2 ppm Method Monitaire Sampler Ditto Ditto LD-1121D/12 BB 0 0 0 0 1 9 5 I-- I II 1 I I I I I l 1I I it -.rea Silica Pigments (See note for locations of sampling.) Monitored Personnel C D E F TABLE 9 OCCUPATIONAL ENVIRONMENT AIR MONITORING Date-Time 3-14-72 (A.M.) Ditto Ditto Ditto Contaminant Concentration Conditions Method Particulates 1.7 mg/M3 No activity Particulates 4.3 mg/M3 Particulates 42.3 mg/M3 Particulates 28.8 mg/M3 Bagging and loading. Bagging and loading. Ditto. Electrostatic precipitation. Ditto Ditto Ditto Sampling 3-14-72 (A.M.) personnel wearing Midget Cascade Impactor while sampling ahove points - 1 hour. Total Particulates 21.6 mg/M3 Respirable ' Portion 11*5 mg/M3 or 531o respirable Andersen Mini Sampler (Wind - SW at 5 mph) Furnace Building .5-15-72 (Mid-day) Upper Floor South Entrance NaOH Mist 4.0 mg/M3 Water Scrubber/ "AA" Sodium Analysis a a ro H a *5 SILICA PIGMENTS AREA. PARTICULATE AIR SAMPLING LOCATIONS lU-0121D/i4 Downstairs in Frit Reactor area of Furnace Building Upstairs, over the south end of the furnace in Furnace Building North-East corner of the Pigments Shipping Building where trucks and "boxcars are loaded Center of Pigments Shipping Building, under North-South conveyors On the Bagging Platform between Baggers in Pigments Shipping Building Center of Lower Roadway leading out the west door of Pigments Shipping Building, adjacent to Bagging Area and Hopper Car Loading \ BB 00001 Area Organics Area (See nap for sample locations) 'Monitored Personnel 1 thru 8 TABLE 10 OCCUPATIONAL ENVIRONMENT AIR MONITORING Date-Time 4-13-72 Contaminant Concentration Conditions Phosgene None detected. 12 raph South wind. Method Unico Gas Detection Tubes. 1 thru 8 4-13-72 Methyl None detected. Chloroform 12 mph South wind. Ditto. 1 da 1 1 C3 t 11 1Ol 1o1 1o1 1o1 1--1 1 (X 1 i oa 1 i1 t-- t t-i fici L_J P ro H a vHn \rea Organics t-- l fI t l t I I I I l i-- i QB 0000 189 Monitored Personnel 1 2 5` 5 6 7 8 3 4 TABLE 10 - (COHT'D.) OCCUPATIONAL ENVIRONMENT AIR MONITORING Bate-Time 4-13-72 Contaminant Concentration Conditions Per/Tri 10 ppm 12 mph South Wind Ditto Ditto Ditto Ditto Ditto Ditto Ditto Ditto Ditto Ditto Ditto Ditto 10 ppm < 10 ppm < 10 ppm < 10 ppm < 10 ppm < 10 ppm Ditto Ditto Ditto Ditto Ditto Ditto 4-13-72 Ditto Vinyl Chloride Ditto None Detected 12 mph South Wind Ditto Ditto p Method Unico Gas Detection Tubes Ditto Ditto '"'N Ditto Ditto Ditto Ditto Ditto Ditto 9i/<nsn:-<ri ( Organics Area Points LD-1121d/i7