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Health hazard evaluation report: HETA-85-432-1878, Chevron U.S.A., Inc., Port Arthur, Texas.

Authors
Markel HL Jr.; Wilcox TG
Source
Cincinnati, OH: U.S. Department of Health and Human Services, Public Health Service, Centers for Disease Control, National Institute for Occupational Safety and Health, HETA 85-432-1878, 1988 Mar; :1-22
NIOSHTIC No.
00180441
Abstract
In response to a request, an evaluation was made of cancer incidence and possible hazardous conditions at the Chevron U.S.A. Laboratory (SIC-2911), Port Arthur, Texas. The laboratory employed about 75 chemists and technicians to perform product analyses and tests on environmental samples to satisfy Environmental Protection Agency requirements. Airborne concentrations of toluene (108883), xylene (1330207), n-heptane (142825), and n-hexane (110543) were all below the recommended OSHA levels. Five breathing zone samples and one general area air sample exceeded the NIOSH 0.1 part per million recommended exposure limit for benzene (71432). Some laboratory hoods did not meet minimum requirements to maintain contaminant concentrations below exposure limits. Deaths due to all malignant neoplasms were not found to be elevated. There was a statistically significant excess of rectal cancer. There were three deaths due to hematopoietic disorders. The authors conclude that the number of cases of rectal cancer and brain cancer exceed the number expected; these cases could not be linked with occupational exposure. Exposures to benzene present a potential health hazard. The authors recommend that ventilation be improved and strict enforcement of the Chevron safety procedure for dealing with benzene be maintained.
Keywords
NIOSH-Author; NIOSH-Health-Hazard-Evaluation; NIOSH-Technical-Assistance-Report; HETA-85-432-1878; Region-6; Hazard-Confirmed; Chemical-industry-workers; Laboratory-workers; Chemical-analysis; Author Keywords: Petroleum Refining; Benzene; Toluene; Xylene; N-Hexane; N-Heptane; Total Hydrocarbons; Quality Control Laboratory
CAS No.
108-88-3; 1330-20-7; 142-82-5; 110-54-3; 71-43-2
Publication Date
19880301
Document Type
Field Studies; Hazard Evaluation and Technical Assistance
Fiscal Year
1988
NTIS Accession No.
PB88-237664
NTIS Price
A03
Identifying No.
HETA-85-432-1878
NIOSH Division
DSHEFS
SIC Code
2911
Source Name
National Institute for Occupational Safety and Health
State
TX; OH
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