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HHE Report No. HETA-86-132-1780, Alyeska Pipeline Service Company, Valdez, Alaska.

Authors
Apol-AG; Singal-M
Source
NIOSH 1987 Feb:21 pages
NIOSHTIC No.
00169487
Abstract
In response to a request from the State of Alaska Department of Labor, a study was made of employee exposure to oil sludge and vapors during oil sludge removal and maintenance activities at the Alyeska Pipeline Service Company's Ballast Water Treatment Facility (SIC-1311), Valdez, Alaska. Hydrogen-sulfide (7783064) concentrations were less than 0.1 part per million (ppm) when no one was working in the ballast water tank, and 0.6ppm during work operation. Phenol (108952) concentrations were below 0.01ppm. Polynuclear aromatic hydrocarbon concentrations showed only detectable levels of acenaphthylene (208968), acenaphthene (83329), fluorene (86737), phenanthrene (85018), anthracene (120127), and naphthalene (91203). Benzene (71432) concentrations in the tank ranged from 4.2 to 5.9mg/m3 with no activity in the tank and from 6.0 to 15.4mg/m3 during work; the proposed benzene standard is 1ppm. Toluene (108883) concentrations ranged from 3 to 10ppm. Xylene (1330207) concentrations ranged from 9 to 21ppm. Total hydrocarbons, except benzene, toluene, and xylene, showed concentrations from 371 to 1228mg/m3. Of eight maintenance workers, five reported headache, dizziness, or nausea when working without a respirator. The authors conclude that workers were potentially exposed to benzene vapors and total hydrocarbon vapors exceeding the evaluation criteria for these substances. The authors recommend the use of respiratory protection measures to reduce exposures during work operations.
Keywords
NIOSH-Author; HETA-86-132-1780; NIOSH-Health-Hazard-Evaluation; NIOSH-Technical-Assistance-Report; Hazards-Confirmed; Region-10; Oil-vapors; Oil-refinery-workers; Petroleum-industry; Petroleum-refineries;
CAS No.
7783-06-4; 108-95-2; 208-96-8; 83-32-9; 86-73-7; 85-01-8; 120-12-7; 91-20-3; 71-43-2; 108-88-3; 1330-20-7;
Publication Date
19870201
Document Type
Hazard Evaluation and Technical Assistance;
Fiscal Year
1987
NTIS Accession No.
PB87-205944
NTIS Price
A03
Identifying No.
HETA-86-132-1780
NIOSH Division
DSHEFS;
SIC Code
1311;
Source Name
Hazard Evaluations and Technical Assistance Branch, NIOSH, U.S. Department of Health and Human Services, Cincinnati, Ohio, Report No. HETA-86-132-1780, 21 pages, 3 references
State
AK; OH;
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