Document Yr0GmDpJeLMJ3OXnOqLbLRByN

LOUISIANA DIVISION' INDUSTRIAL HYGIENE REPORT AN OPERATING UNIT OF THE DOW CHEMICAL COMPANY DEPARTMENT FILE NUMBER VINYL II LAD-V2-86.01 TITLE VINYL II INDUSTRIAL HYGIENE ACTIVITY REPORT FOR 1986 AUTHOR(S) SIGNATURE(S) Freddie Gascon REVIEWER'S SIGNATURE ]/)( ti DATE 03-26-87 SUMMARY Employees with exposure potential to vinyl chloride, EDC (1,2, Dichloroethane) and ALPHA-Tri (1,1,1, Trichloroethane) were monitored using approved sampling and analytical methods. An area noise survey was also conducted. Results show that exposure levels were below the permissable or recommended maximum exposure levels for all compounds measured. Exposure levels have been reduced partly due to modification of EDC process sample points and sample points at the VCM tank car loading stations (1984). In 1987, monitoring will be conducted according to the attached sampling strategy sheet. DISTRIBUTION Louisiana T. P. ROZAS 2306 S.G . COLE 6601 W. G. BALENTINE 6601 M. MITCHELL 3701 R. W. GALLANT 2306 M. F. CURRIER 2302 M. E. NEVILL 3502E H. M. BELL 4701T L. C, HOLLIS 3502E A. J. BOURG 6601 Other Midland M. G. SWANK 1803 * L. RANPY 1803 it G. F. ENGDAEL 1803 * S. K. NORWOOD 1803 * J. E. LEBEAV 1803 It A. W. SHAFFER 2030 it S. M. GORGACZ 474 * D. E. CRAGER, FREEPORT, B-101 * F. D. AXE, WESTERN DIV., 471 * G. L. MEIER, EASTERN DIV., STRONGSVILLE, OHIO * COVER LETTER ONLY DO 08199.-1 DONFTDFNTT Al VINYL II Industrial Hygiene Report, 1967 ' March 26, 1967 Page 2 ACCOMPLISHMENTS Completed annual review of hazards of vinyl chloride anc ether chemicals in the block and the consequences of overexposure to them. Alst , reviewed exposure data for 1986. Implemented hazard communication standard & completed training with all employees. Chemical exposure indexes were reviewed for the major chemicals in the block. This was done in order to evaluate risk potential to people ir. the vinyl II plant, the division & the surrounding community. Fume hoods were checked by the I. H. contact for class "A" recertification. Analyzed 137 STEL. Samples for marine department employees during vinyl chloride ship disconnects. Modifications of EDC sample points and sample points at the tank car loading stations were completed in 1984, This significantly reduced exposure levels as seen in 1985 and 1986 monitoring. See attachments 10-13. Visually audited EDC process sample points weekly for integrity. VINYL II Industrial Hygiene Report, 1987 March 26, 1987 Page 3 1987 GOALS 1. 8 hour TWA exposure sampling for operations personnel with greatest exposure potential. (Vinyl Chloride and EDC.) Approximately 20 samples. 2, Personnel noise survey for some operations employees contract employees. 3, Area noise survey of entire plant and replace old caution signs with new ones. 4. STEL samples for vinyl & EDC JOB A. Catching vinyl samples B. Running vinyl samples C. Catching EDC samples D. Running EDC samples E. Sampling vinyl tank cars F. Disconnecting vinyl tank cars NO. SAMPLES 4 4 4 4 12 12 5. Store personnel monitoring G.C. printouts in PDP li computer 6. Change from packed G.C. columns to fused silica capillary columns. 7. Area surveys: A. Furnace feed tanks for EDC B. Ecology area for HCL & CL2 O0\995 DO f.ONF T'DDNT'I Al. VINYL II Industrial Hygiene Report, 1987 March 26, 1987 page 4 VINYL CHLORIDE EXPOSURE EVALUATION Explanation of Guidelines and Sampling Method The OSHA permissable exposure limit for vinyl chloride is 1 PPM for an 8 hour time weighted average (TWA). The short term exposure limit is 5 PPM averaged over a 15 minute period. Sampling is done with charcoal tubes and dupont model P-200 personal dosimeters. See Attachment f9. 1. Personnel Monitoring As shown in attachment 1,2, and 7 the personnel samples were below the 1 PPM TLV, TWA and the 5 PPM TLV-STEL. This agrees with historical data. A-TRI (1,1,1 TRICELOROETHANE) EXPOSURE EVALUATION Explanation of Guidelines and Sampling Method The ACCIH threshold limit value is 350 PPM. 1. Personnel Monitoring As shown in attachment 3 s 4 the personnel samples were well below the 350 PPM TLV -TWA. This agrees with historical data. See attachment 4. Sampling is done with charcoal tubes and dupont model P-200 personal dosimeters. See Attach ment it 9. EDC (1,2 Dichloroethane) EXPOSURE EVLAUATION Explanation of Guidelines and Sampling Method The ACGIH threshold limit (TLV-TWA) for EDC is 10 PPM. The TLV-STEL is a 15 minute guideline of 15 PPM. Sampling is done with charcoal tubes and dupont model P-200 pumps, see Attachment H9. 1. Personnel Monitoring As shown in attachment 5 6 & 8 the personnel samples were well below the 10PPM TLV-STEL. This agrees with Historical data. NOISE EXPOSURE EVALUATION An area noise survey was conducted using a Bruel & KJaer sound level meter which is calibrated at 94 DB using a Bruel KJaer sound level calibrator type 4230. Caution signs are posted in high noise areas. Also, operations that non-routinely increase noise levels (Hydroblasting, sandblasting, depressuring steam and air lines, etc.) are monitored and appropriate precautions are taken. In 1987 a personnel noise exposure survey will be conducted. See Attachment 14. DO 081996 CQNFIDFNTTA1 VINYL jj Industrial Hygiene Report, 1987 Maich 26, 1987 Page 5 ATTACHMENT I EMPLOYEES TIME WEIGHTED AVERAGE POTENTIAL EXPOSURE CHEMICAL: 'Vinyl Chloride (TLV-Tf\'A 1 ppm) DATE DURATION (MIN) Q3-03 03-03 03-03 03-03 03-03 03-14 03-14 03-14 03-14 03-14 04-08 04-08 04-08 04-08 04-08 04-08 04-09 04-09 04-09 09-08 09-08 09-08 09-19 480 480 480 480 480 480 480 480 480 480 480 480 480 480 480 480 480 i 480 480 480 480 480 480 VOLUME (L) 48 48 48 48 48 48 48 48 48 48 48 48 48 48 48 48 48 48 48 48 48 48 48 JOB BOARD OS BOARD OS Ecology Board ECOLOGY BOARD SAMPLE OT BOARD OS BOARD OS ECOLOGY BOARD SOT ECOLOGY BOARD SOT OT SAMPLES BOARD OS BOARD OS BOARD OS ECOLOGY BOARD SOT ECOLOGY BOARD SOT SAMPLE OT EDO OT EDO OT EDO OT , EDO OT EDO OT EDO OT SAMPLE OT RESULT <.01 <.01 .01 .01 .12 <.01 <.01 .12 <.01 .15 .07 <.01 <.01 .06 <.01 .15 <.01 <.01 <.01 .12 <.01 <.01 .10 AVERAGE: .045 DO OBI 997 CONFTCTNTT Al FILLED IN BY F. GASCON_________ PLANT VINYL II___________ BLOCK 66 ATTACHMENT ff 4 EMPLOYEE EXPOSURE SUMMARY DR# 0114-1986__________ CHEMICAL vinyl chloride MINIMAL DETECTABLE LIMIT AND UNIT QUARTER IHG 4 Ippm YEAR 19?$ 0.0lppm JOB NO. CLASS 02 OT 03 SOT 04 OS PERSONNELEXCURSION #PT TWA NO. EXCUR. NO. EQ. BASIS SAMP. AVG. HIGH C DURATION SAMP. AVG. 8 Hr 10 .06 .15 15 min 24 1.4 8Hr 8Hr 6 7 *.03 .12 X.01 .08 * HIGH C 2.9 ,X SAMPLE DURATION NO. SAMP. AREA AVG. ' HIGH C oo 2O n *H o rCn> CD 2 VO *h cT) i> J - PROTECTIVE EQUIPMENT: (1) MOUTHBIT (2) FULL FACE (3) HALF FACE OR DUST (*)) AIR SUPPLY (5) HEARING PROTECTION COMMENTS (use reverse 3ide) LH:3b IH-2 (12/86) FORM1 VINYL II Industrial Hygiene Report March 26 ,1967 Page 7 ATTACHMENT 3 EMPLOYEES TIME WEIGHTED AVERAGE POTENTIAL EXPOSURE CHEMICAL A-Tri (1 ,1,1 Trichloroethane) TLV-TWA 350 PPM DATE 03-03 03-03 03-03 03-03 03-03 03-14 03-14 03-14 03-14 03-14 04-08 04-08 04-08 04-08 04-08 04-08 04-09 04-09 04-09 09-08 09-08 09-08 09-19 DURATION (MIN) 480 480 480 480 480 480 480 480 480 480 480 480 480 480 480 480 480 480 480 480 480 480 480 VOLUME (D 48 48 48 48 48 48 48 48 48 48 48 48 48 48 48 48 48 48 48 48 48 48 48 JOB BOARD OS BOARD OS ECOLOGY BOARD SOT ECOLOGY BOARD SOT SAMPLE OT BOARD OS BOARD OS ECOLOGY BOARD SOT ECOLOGY BOARD SOT SAMPLE OT BOARD OS BOARD OS BOARD OS ECOLOGY BOARD SOT ECOLOGY BOARD SOT SAMPLE OT EDO OT EDO OT EDO OT EDO OT EDO OT EDO OT SAMPLE OT RESULT <.l <.l <.l <.l <.l <.l <.l <.l <.l <.l <.l <.l < .1 <.l <.l <.l <.l <.l <.l 1.33 1.03 <.l <.l AVERAGE: .19 Do 06199 00NF T DETNT FILLED IN BY F. Gascon________ PLANT yjnul TT___________ BLOCK ATTACHMENT 4 EMPLOYEE EXPOSURE SUMMARY QUARTER 4 YEAR 1986 DR# 0001-5883_________ ___ IHC TWA 350 ___ CHEMICAL fl-rri (1.1.1 Trichloroethane) MINIMAL DETECTABLE LIMIT AND UNIT Q.jppm__ NO. 02 03 04 JOB CLASS OT SOT OS PERSONNELEXCURSION #PT TWA NO. ** EXCUR. NO. EQ. BASIS SAMP. AVG. HIGH C DURATION SAMP. AVG. 8Hr 10 .24 1.33 8Hr 6 <.l <.l 15 min 1 <.l 8Hr 7 <.l <.l ** HIGH C X<.l SAMPLE DURATION AREA NO. SAMP. AVG. HIGH C n OO zo R MO JR \> ZO HO -< O > - ! I -- - PROTECTIVE EQUIPMENT: (1) MOUTHBIT (2) FULL FACE (3) HALF FACE OR DUST (4) AIR SUPPLY (5) HEARING PROTECTION 'COMMENTS (use revernn 3ide) LH:ab IH-2 (12/86) FORM) X(INYL II Industrial Hygiene Report March 26, 1987 Page 9 ATTACHMENT 5 EMPLOYEES TIME WEIGHTED AVERAGE POTENTIAL EXPOSURE CHEMICAL; EEC (1,2,DICHLOROETHANE) TLV-TWA 10PPM DATE 03-03 03-03 03-03 03-03 03-03 03-14 03-14 03-14 03-14 03-14 04-08 04-08 04-08 04-08 04-08 04-08 04-09 04-09 04-09 09-08 09-08 09-08 09-19 DURATION (MIN) 480 480 480 480 480 480 480 480 480 480 480 480 480 480 480 480 480 480 480 480 480 480 480 VOLUME (L) 48 48 48 48 48 48 48 48 48 48 48 48 48 48 48 48 48 48 48 48 48 48 48 JOBRESULT (PPM) BOARD OS BOARD OS ECOLOGY BOARD SOT ECOLOGY BOARD SOT SAMPLE OT BOARD OS BOARD OS ECOLOGY BOARD SOT ECOLOGY BOARD SOT SAMPLE OT BOARD OS BOARD OS BOARD OS ECOLOGY BOARD SOT ECOLOGY BOARD SOT SAMPLE OT EDO OT EDO OT EDO OT EDO OT EDO OT EDO OT SAMPLE OT <.05 <.05 <.05 .08 .18 <.05 <.05 .19 <.05 .28 .09 <.05 <.05 .19 .13 1.03 .09 .05 <.05 .16 .16 .26 .41 AVERAGE: .16 DO 082001 CONFTDFNTIAL FILLED IN BY F' Cascon________ PLANT VJNYL^II__________ BLOCK 66 ATTACHMENT 6 EMPLOYEE EXPOSURE SUMMARY DR* _0001-8531 QUARTER 4 YEAR 1986 ihg TWA 10 -------- CHEMICAL Fnr g 7 niVhfnmo<-hfln>.i MINIMAL DETECTABLE LIMIT AND UNIT C,05Dn-r JOB NO. CLASS 02 OT 03 SOT 04 OS PERSONNELEXCURSION________ AREA PT TWA NO. * EXCUR. NO. SAMPLE NO. EQ. BASIS SAMP. AVG. HIGH C DURATION SAMP. AVG. HIGH C DURATION SAMP. AVC. HIGH 8Hr 8Hr 10 6 x.26 1.03 y.10 .19 15 min 7 tX1.16 7.97 8Hr 7 .05 .15 l O oo 20 n oao rR \) 7 -< o *-( x> PROTECTIVE EQUIPMENT: (1) MOUTHBIT (2) FULL FACE (3) HALF FACE OR DUST (*1) AIR SUPPLY (5) HEARING PROTECTION rOMMFWTS r^vs^P pHpS T.H-<*h TH_? M2/RR1 FORM 1 VINYL II Industrial Hygiene Report March 26, 1987 Page 21 ATTACHMENT 7 EMPLOYEES POTENTIAL EXPOSURE STEL CHEMICAL: Vinyl Chloride (TLV-STEL 5PPM) DATE 01-21 01-21 01-21 02-19 02-19 02-19 04-16 04-16 04-23 04-23 04-23 04-23 04-23 08-19 08-18 09-17 09-17 09-17 10-08 10-08 10-09 10-09 10-1C lo-ie DURATION VOLUME (MIN)(L)JOBRESULTS (PPM) 15 1.5 DISCONNECTING VINYL T/C OT 1.56 15 1.5 DISCONNECTING VINYL T/C OT 2.34 15 1.5 disconnecting VINYL T)/C OT 1.82 15 1.5 DISCONNECTING VINYL T/C OT 2.86 15 1.5 DISCONNECTING VINYL T/C OT 2.60 15 1.5 DISCONNECTING VINYL T/C OT 2.08 15 1.5 RUNNING VCM SAMPLES ON SIGMA 2000 1.04 15 1.5 RUNNING VCM SAMPLES ON SIGMA 2000 .91 15 1.5 RUNNING VCM SAMPLES ON SIGMA 2000 .26 15 1.5 RUNNING VCM SAMPLES ON SIGMA 2000 .44 15 1.5 RUNNING VCM SAMPLES ON SIGMA 2000 2.08 15 1.5 RUNNING VCM SAMPLES ON SIGMA 2000 1.04 15 1.5 RUNNING VCM SAMPLES ON SIGMA 2000 2.08 15 2.5 DISCONNECTING T/C SAMPLE CYLINDERS 2.34 15 1.5 DISCONNECTING VINYL TANK CARS 1.30 15 1.5 DISCONNECTING T/C SAMPLE CYLINDERS 1.04 15 1.5 DISCONNECTING VINYL TANK CARS <.l 15 1.5 DISCONNECTING VINYL TANK CARS 1.30 ' 15 1.5 DISCONNECTING T/C SAMPLE CYLINDERS .78 15 1.5 DISCONNECTING VINYL TANK CARS 2.73 15 1.5 CATCHING VINYL PROCESS SAMPLES <.l 15 1.5 CATCHING VINYL PROCESS SAMPLES .78 15 1.5 RUNNING VINYL PROCESS SAMPLES <.l 15 1.5 RUNNING VINYL PROCESS SAMPLES 2.34 DO 082003 CONFIDENTIAL VINYL II Industrial Hygiene Report March 26, 1987 Page 12 ATTACHMENT 8 EMPLOYEES POTENTIAL EXPOSURE STEL CHEMICAL: EDC(1,2 Dichloroethane) TLV-STEL 15PPM DATE 09-16 10-09 10-09 10-09 10-10 10-10 10-10 DURATION (MIN) 15 15 15 15 15 15 15 VOLUME (L) 1.5 1.5 1.5 1.5 1.5 1.5 1.5 JOB OT RUNNING EDC PROCESS SAMPLES OT RUNNING EDC PROCESS, SAMPLES OT RUNNING EDC PROCESS SAMPLES OT RUNNING EDC PROCESS SAMPLES OT RUNNING EDC PROCESS SAMPLES OT RUNNING EDC PROCESS SAMPLES OT RUNNING EDC PROCESS SAMPLES RESULTS(PPM) 1.81 1.97 < .05 1.48 1.80 < .05 1.0 DO 082004 CONFIDENTIAL VINYL II Industrial Hygiene Report March 26, 1987 Page 13 ATTACHMENT 9 SAMPLING AND ANALYTICAL EQVIPKZN T Personnel samples for all chemicals are run using the charcoal tube adsorption, CS2 desorption methods. Desorption takes place at dry ice temperature. The samples are caught using Dupont modelP-200 pumps which are calibrated at 100 cc/minute. Calibra tion frequency is daily when a survey is in progress. This is the case for eight hour and short term exposure (15 minute) sampling. Samples were analyzed on a Perkin Elmer model 3920 B gas chromatograph `with flame ionization detectors under the following conditions: COLUMN: 3/8" X 12' SS packed with 5.5% polyethylene grease tergitol NPX on chromosorb "W" A.W. 60/80 mesa OVEN : 90 Isothermal INJECTORS: 200C DETECTOR: 200C CARRIER: Helium zero grade, 60 PSIG, 50 cc/min. CALIBRATION: Daily when sampling is in progress STANDARD: .064 mg/ml VCM .331 mg/ml 1,1,1 Trichloroethane .313 mg/ml 1,2, Dichloroethane (EDC) Balance: 20ml CS2 New standards are prepared at least monthly DO 082005 confidential VINYL II Industrial Hygiene Report March 26, 1987 page 14 ATTACHMENT 10 AMBIENT AIR GRAB SAMPLES WHILE CATCHING EEC PROCESS SAMPLES Previous samples were caught at sample points with 3/8" monel tubing. was replaced with 3/8" tubing and resampled with results shown below: C-230 bottoms 105C The 3/8 tubing BREATHING ZONE 3/8"- tubing 1.34ppm 1/8" tubing .39ppm SOURCE 3/8" tubingl,966 ppm (4-6"away) 1/8" tubing 5.78ppm C-250 Bottoms 115C BREATHING ZONE 3/8" tubing lO.Cppm 1/8" tubing 0.25ppm SOURCE 3/8" tubing 2,105ppm (1-6" away) 1/8" tubing 72ppm Other grab samples at different points (1/8" tubing) throughout the plant 6-8" from source 360 around. C-250 Bottoms 1.47 ppm EDC C-230 Bottoms C-260 Bottoms 1.85 ppm 0.53 ppm C-250 Bottoms None Detected MX-250 Outlet 0.46 ppm C-211 Bottoms 4.04 ppm (3/8" tubing) C-235 Bottoms None Detected D-271 2.12 ppm V-260 2.78 ppm DO 082006 CONFIDENTIAL o1 Z 0z u H 55 > < <m Q Li. o 2 t- LlI hi r'~i X U) 3 u u >< h* U lil "i m d (A it t EDt Sample P^lrvt DO 0 8 2 0 0 7 C O N FID EN TIAL ATTACHMENT 1 2 DO 0 8 2 0 0 8 coN F toF N -n 0 z0 UJ z h- 1 s >- < < k IQ Q LL 0 < zo 2 0 f- HU * . ii UJ hi X U) (M Load. fU-m Vent ^ t i 3 re.rsonn.el_ Exposure. LTClirsimS lirealer "Than. IQQppm y (J LI "I m D UJ ATTACHMENT 14 00 08?010 CO NFTRENTIAl PLANT - 0661 VINYL II CHEMICAL - 0001-B531 ETHYLENE YEAR -- 86 JOE CLASSIFICATION - ALL QUARTER - 4 SAMPLE TYPE - PERSONNEL DICHLQRI DE"'"EDC INDUSTRIAL HYGIENE MONITORING DAT 10 PPM JOB CLASS OT SOT OS PRT EQP SMP DUR # HR MN SAMPLES AVERAGE 08 0 0 08 00 08 00 10 6 7 0.26 n. i Ci 0.05 HIGH 1.03 0. 19 0. 15 COMMENTS DO 082011 CONFIDENTIAL. INDUSTRIAL HYGIENE MONITORING DAT PLANT - 0661 VINYL II CHEMICAL - 0001-8531 ETHYLENE DICHLORIDE EDC 10 PPM YEAR - 86 JOE CLASSIFICATION - ALL QUARTER - 4 SAMPLE. TYPE - EXCURSION JOB CLASS PRT EQP SMP DUR # HR MN SAMPLES AVERAGE HIGH COMMENTS OT 00 15 7 1.16 1.97 DO 08201? CONFIDENTIAL