Benzene exposure in refinery workers: ExxonMobil Joliet,Illinois,USA (1977-2006)

Abstract

While petroleum industry studies have indicated low benzene exposure potential for refinery workers, most provide limited data for assessing job or task-related benzene exposures. This study characterizes job and task-specific airborne benzene concentrations and variability over time for the ExxonMobil refinery in Joliet, Illinois from 1977 to 2006. A database of 2289 industrial hygiene air samples, including 1145 non-task (≥180 min) personal samples and 480 task-related (<180 min) personal samples, were analyzed. Samples were grouped by operational status, job, and task. Benzene concentrations were determined for each job category and task bin, with additional analyses conducted to determine whether benzene concentrations changed over time. The results indicate that the benzene concentrations for non-task and task samples were relatively low. For all non-task samples, the arithmetic mean benzene concentration was 0.12 part per million (ppm). The most frequently sampled workers (process technicians during routine operations) had an arithmetic mean benzene concentration of 0.038 ppm. The most frequently sampled task bin (blinding and breaking) had an arithmetic mean benzene concentration of 1.0 ppm. This study provides benzene air concentration data that can be used in combination with job histories to reconstruct historical benzene exposures for workers at the Joliet Refinery over the past 30 years.

Keywords

Benzene refineries exposure assessment industrial hygiene

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References

Aalund LR ( 1973) Joliet: big heartland refinery ready for the '70s . The Oil and Gas Journal: 45-60.

Armstrong TW , Pearlman ED , Schnatter AR , Bowes SM 3rd , Murray N. , and Nicolich MJ ( 1996) Retrospective benzene and total hydrocarbon exposure assessment for a petroleum marketing and distribution worker epidemiology study. American Industrial Hygiene Association Journal 57(4): 333-343.

Baccarelli A. , Pfeiffer R. , Consonni D. , Pesatori AC , Bonzini M. , Patterson DG , et al. (2005) Handling of dioxin measurement data in the presence of non-detectable values: overview of available methods and their application in Seveso chloracne study. Chemosphere 60(7): 898-906.

Buchet JP , Van Eyken J. , and Lauwerys R. ( 1984) Evalation de l’exposition au benzene des travailleurs preposes aux qais de chargement de l’essence dans une raffinerie . Cahiers de Medecine de Travail Cahiers Voor Arberdsgeneeskunde 21: 25-27.

Concawe (1987) A survey of exposures to gasoline vapour. Hague, Netherlands: Oil Companies European Organization for Environment, Health and Safety (CONCAWE) .

Concawe (1994) Review of European oil industry benzene exposure data (1986-1992). Brussels : Oil Companies European Organization for Environment, Health and Safety (CONCAWE).

Glass DC , Adams GG , Manuell RW , and Bisby JA ( 2000) Retrospective exposure assessment for benzene in the Australian petroleum industry. Annals of Occupational Hygiene 44(4): 301-320.

Glass DC , Gray CN , Adams GG , Manuell RW , and Bisby JA ( 2001) Validation of exposure estimation for benzene in the Australian petroleum industry. Toxicology and Industrial Health 17(4): 113-127.

HEI (1988) Gasoline vapor exposure and human cancer: evaluation of existing scientific information and recommendations for future research. Cambridge, MA: Health Effects Institute (HEI).

10.

Helsel D. ( 2005) More than obvious: better methods for interpreting nondetect data. Environmental Science and Technology 39(20): 419A-423A.

11.

Helsel DR , Cohn T. ( 1988) Estimation of descriptive statistics for multiply censored water quality data. Water Resources Research 24(12): 1997-2004.

12.

Hewett P. ( 2007) User Guide for IH DataAnalyst.

13.

Huybrechts T. , Thas O. , Dewulf J. , and Van Langenhove H. (2002) How to estimate moments and quantiles of environmental data sets with non-detected observations? A case study on volatile organic compounds in marine water samples. Journal of Chromatography A 975(1): 123-133.

14.

Ignacio JS , and Bullock WH (eds) (2006) A strategy for assessing and managing occupational exposures. Fair-fax, VA: AIHA Press.

15.

Lubin JH , Colt JS , Camann D. , Davis S. , Cerhan JR , Severson RK , et al. (2004) Epidemiologic evaluation of measurement data in the presence of detection limits. Environmental Health Perspectives 112(17): 1691-1696.

16.

Meyers RA (ed.) (2004) Handbook of Petrolem Refining Processes. New York: McGraw-Hill.

17.

National Institute of Occupational Safety and Health ( 2003) NIOSH Manual of Analytical Methods: Aromatic Hydrocarbons , Method 1501.

18.

Neter J. , Wasserman W. , and Kutner MH ( 1990) Applied Linear Statistical Models. Burr Ridge, IL: Irwin.

19.

Nordlinder R. , Ramnas O. ( 1987) Exposure to benzene at different work places in Sweden . Annals of Occupational Hygiene 31(3): 345-355.

20.

Osha (1987) 29 CFR 1910.1028 . Benzene.

21.

Osha (2003) Safety Hazards, Chapter 2: Petroleum Refining Processes. OSHA Technical Manual. Washington, DC: OSHA Office of Science and Technology Assessment.

22.

Questions and Answers about Mobil’s Joliet Refinery ( 1973) The Center for American History, University of Texas at Austin, ExxonMobil Historical Collection.

23.

Rappaport SM , Selvin S. , and Waters MA ( 1987) Exposures to hydrocarbon components of gasoline in the petroleum industry. Applied Industrial Hygiene 2(4): 148-154.

24.

Runion HE , Scott LM ( 1985) Benzene exposure in the United States 1978-1983: an overview . American Journal of Industrial Medicine 7(5-6): 385-393.

25.

Author (1999) Exxon-Mobil Merger Wins FTC Approval. Washington Post. November 30, 1999.

26.

U.S. EPA (1989). 40 CFR 61 Subpart FF. National Emission Standards for Benzene in Waste Operations.

27.

U.S. EPA (1995). 40 CFR Part 80. Regulation of Fuels and Fuel Additives.

28.

U.S. EPA (2007). Statistical Software ProUCL 4.0 for Environmental Applications for Data Sets with and without Nondetect Observations, Technical Support Center for Monitoring and Site Characterization.

29.

Verma DK , Johnson DM , Shaw ML , and des Tombe K. ( 2001) Benzene and total hydrocarbons exposures in the downstream petroleum industries. American Industrial Hygiene Association Journal 62(2): 176-194.

30.

Weaver NK , Gibson RL , and Smith CW ( 1983) Occupational exposure to benzene in the petroleum and petrochemical industries. In: Occupational Exposure to Benzene , Mehlman, MA (ed.), Princeton, NJ: Princeton Scientific Publishers , pp. 63-73.