| Benzene Fact Sheet
Benzene is a colorless liquid that
evaporates very quickly and has a sweet odor. It’s highly flammable
and is widely used in the United States – it is formed from both natural
processes and human activities. Benzene is used to make certain kinds
of rubbers, lubricants, dyes, detergents, pesticides and drugs. Some
industries use benzene to make other chemicals which are then used to
make nylon, plastics, resins, and synthetic fibers.
How You Are Exposed
- Tobacco smoke, exhaust from motor vehicles and industrial emissions cause outdoor air to contain low levels of benzene.
- Indoor air tends to contain higher levels of benzene
from products that emit it including glues, paints,
furniture wax and detergents.
- Living or spending time in areas surrounding hazardous waste sites or gas stations may expose you to higher levels of benzene in the air.
- Well water can become contaminated with benzene due to leakages from underground storage tanks or from hazardous waste sites containing the chemical.
How Can Benzene Affect Your Health?
Benzene is absorbed via inhalation, ingestion,
and skin application. Breathing extremely high levels of benzene can
result in death, while high levels may cause drowsiness, dizziness,
headaches, tremors, increased heart rate, and unconsciousness.
Ingesting benzene through contaminated food or drink can result in
vomiting, stomach irritation, drowsiness, dizziness, convulsions,
increased heart rate and even death.
Long term exposure to benzene can result in harmful effects on the bone marrow leading to a decrease in red blood cells and anemia. It can also cause excessive bleeding and a weakening of the immune system, increasing the chance of infection. Some women have shown evidence of irregular menstrual periods and diminished ovary size following many months of being exposed to high levels of benzene in the air.
Benzene has also been determined to be a human carcinogen and long term exposure may increase the incidence of leukemia.
Avoiding Exposure: Tips and Alternatives
The EPA has set the maximum permissible level of benzene in drinking water at 0.0005 milligrams per liter. OSHA has set a permissible exposure limit of 1 part of benzene per million parts of air in the workplace during an 8-hour workday, 40-hour workweek.
Be aware of these limits if you work in an industry that uses benzene or if you live near a gas/service station.
Avoid smoking or spending extended periods of time around cigarette smoke.
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