MSDS Crude Oil - Alaska North Slope Crude Oil
Material Safety Data Sheet #4686
8-9-93 date of First MSDS
Alyeska Pipeline Service Company
V. Summary of Chronic Hazards:
This product contains Benzene, which is associated with various blood disorders, anemias, and leukemia in humans, and PAHs, which have been shown to produce skin tumors in laboratory animals after prolonged and repeated skin contact. The exact relationship between these results and possible human effects is not known. Personnel with pre-existing central nervous system disease, skin disorder, chronic respiratory disease, or impaired liver or kidney function should avoid exposures to this product. Further information on the individual components can be found in the following MSDSs.
(Don't match CAS Nr - What do these numbers mean?)
This product (crude oil) is not listed as a carcinogen. However, Benzene and some PAHs are listed by the IARC, OSHA and NTP as carcinogens. Under normal use conditions the amount of Hydrogen Sulfide present is not enough to cause exposures to exceed the PEL without severe over exposures to the other components occurring first.
Summary of Acute Hazards:
Inhalation: May cause respiratory tract irritation. Initially, high concentrations will cause central nervous system depression and symptom such as headache, drowsiness, dizziness, nausea, lack of coordination. If exposure continues, convulsions, coma and death may result. Inhalation of high concentrations of a mist may lead to a pneumonia.
Skin: May cause irritation. Repeated or prolonged contact may result in defatting of the skin, oil acne, redness, itching, inflammation, cracking and possible secondary infection. Absorption through the skin is possible from prolonged or massive contact which may cause symptoms of inhalation and exposure to Benzene.
Eye: Direct contact may cause irritation. Exposures to vapors, gasses or mist may cause irritation.
Ingestion: Ingestion of large quantities may irritate the mouth, throat, and gastrointestinal tract and cause systemic effects. Aspiration into the lung may produce chemical pneumonia.