Benzene is a clear, liquid, petroleum-based chemical that has a sweet smell. Benzene poisoning occurs when someone swallows, breathes in, or touches benzene. It is a member of a class of compounds known as hydrocarbons. Human exposure to hydrocarbons is a common problem.
This article is for information only. DO NOT use it to treat or manage an actual poison exposure. If you or someone you are with has an exposure, call the local emergency number (such as 911), or the local poison control center can be reached directly by calling the national toll-free Poison Help hotline (1-800-222-1222) from anywhere in the United States.
Poisonous Ingredient
Benzene can be harmful if it is swallowed, inhaled, or touched.
Where Found
Symptoms
Below are symptoms of benzene poisoning in different parts of the body.
EYES, EARS, NOSE, AND THROAT
- Blurred vision
- Burning sensation in the nose and throat
HEART AND BLOOD
- Irregular heartbeat
- Rapid heartbeat
- Shock and collapse
LUNGS AND CHEST
NERVOUS SYSTEM
- Dizziness
- Drowsiness
- Nervousness
- Convulsions(seizures)
- Euphoria (feeling of being drunk)
- Headache
- Staggering
- Tremors
- Unconsciousness
- Weakness
SKIN
- Pale skin
- Small red dots on skin
STOMACH AND INTESTINES
- Loss of appetite
- Nauseaand vomiting
Home Care
Seek medical help right away. DO NOT make the person throw up unless poison control or a health care provider tells you to. If benzene is on the skin or in the eyes, flush with lots of water for at least 15 minutes.
If the person swallowed benzene, give them water or milk right away, unless a provider tells you not to. DO NOT give anything to drink if the person has symptoms that make it hard to swallow. These include vomiting, convulsions, or a decreased level of alertness. If the person breathed in the benzene, move them to fresh air right away.
Before Calling Emergency
Have this information ready:
- Person's age, weight, and condition
- Name of the product (ingredients and strength, if known)
- Time it was swallowed
- Amount swallowed
Poison Control
Your local poison control center can be reached directly by calling the national toll-free Poison Help hotline (1-800-222-1222) from anywhere in the United States. This hotline will let you talk to experts in poisoning. They will give you further instructions.
This is a free and confidential service. All local poison control centers in the United States use this national number. You should call if you have any questions about poisoning or poison prevention. It does NOT need to be an emergency. You can call for any reason, 24 hours a day, 7 days a week.
What to Expect at the Emergency Room
The provider will measure and monitor the person's vital signs, including temperature, pulse, breathing rate, and blood pressure. Symptoms will be treated.
The person may receive:
- Blood and urine tests.
- Breathing support, including a tube through the mouth into the lungs, and a breathing machine (ventilator).
- Chest x-ray.
- Endoscopy -- camera placed down the throat to see burns in the esophagus and the stomach.
- Electrocardiogram (ECG).
- Fluids through the vein (by IV).
- Medicines to treat an allergic reaction and other symptoms.
- Washing of the skin may need to be done, perhaps every few hours for several days.
The person may be admitted to the hospital if the poisoning is severe.
Outlook (Prognosis)
How well someone does depends on how much benzene they swallowed and how quickly they receive treatment. The faster medical help is given, the better the chance for recovery. Benzene is very poisonous. Poisoning can cause rapid death. However, deaths have occurred as long as 3 days after the poisoning. This happens because:
- Permanent brain damage occurs
- The heart stops
- The lungs stop working
People who have regular exposure to low levels of benzene can also become sick. The most common problems are blood diseases, including:
- Leukemia
- Lymphoma
- Severe anemia
People who work with benzene products should only do so in areas with good air flow. They should also wear protective gloves and eye glasses.
References
Agency for Toxic Substances and Disease Registry (ATSDR) website.ATSDR Toxzine. Benzene.
Theobald JL, Kostic MA. Poisoning. In: Kliegman RM, St. Geme JW, Blum NJ, Shah SS, Tasker RC, Wilson KM, eds. Nelson Textbook of Pediatrics. 20th ed. Philadelphia, PA: Elsevier; 2020:chap 77.
Wang GS, Buchanan JA. Hydrocarbons. In: Walls RM, Hockberger RS, Gausche-Hill M, eds. Rosen's Emergency Medicine: Concepts and Clinical Practice. 9th ed. Philadelphia, PA: Elsevier; 2018:chap 152.
Version Info
Last reviewed on: 11/13/2021
Reviewed by: Jesse Borke, MD, CPE, FAAEM, FACEP, Attending Physician at Kaiser Permanente, Orange County, CA. Also reviewed by David Zieve, MD, MHA, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team. Editorial update 04/20/2022.
I am a seasoned expert in toxicology and chemical safety, well-versed in the intricacies of various hazardous substances. With a robust background in the field, I have a deep understanding of the properties, effects, and treatment protocols associated with harmful chemicals, including benzene.
Benzene, a clear and sweet-smelling liquid, is a petroleum-based chemical belonging to the class of hydrocarbons. My expertise extends to the recognition of hydrocarbons and their diverse applications, from additives in gasoline and diesel fuel to industrial solvents, paint removers, lacquers, and varnish products.
Human exposure to hydrocarbons, particularly benzene, is a prevalent issue, often encountered in factories, refineries, and various industrial settings. I am well aware of the multiple avenues through which benzene poisoning can occur, whether through ingestion, inhalation, or skin contact.
The symptoms of benzene poisoning are diverse, affecting different parts of the body. From blurred vision, burning sensations in the nose and throat, to irregular heartbeat, rapid breathing, and neurological symptoms like dizziness and seizures—I am proficient in identifying these manifestations of benzene toxicity.
In the event of benzene exposure, I am well-versed in the recommended home care measures. Prompt medical attention is crucial, and I understand the importance of not inducing vomiting unless instructed by poison control. Moreover, I can guide individuals on proper skin and eye flushing techniques and advise on providing water or milk if benzene is swallowed, unless specific symptoms are present.
I am knowledgeable about the critical information needed before calling for emergency assistance, such as the person's age, weight, the product involved, and the time and amount of benzene exposure. I emphasize the significance of reaching out to the national Poison Help hotline (1-800-222-1222) for expert guidance in case of poisoning concerns.
In terms of medical intervention, I am well-versed in the procedures conducted at the emergency room, including vital sign monitoring, blood and urine tests, breathing support, chest x-rays, endoscopy, electrocardiogram, intravenous fluids, and medications to address allergic reactions and symptoms.
Understanding the long-term consequences of benzene exposure, I can provide insights into the potential outcomes and risks associated with poisoning. The risk of leukemia, lymphoma, severe anemia, and other blood diseases is a well-documented concern, especially for those with regular exposure to low levels of benzene.
To support my expertise, I draw on reputable references, including the Agency for Toxic Substances and Disease Registry (ATSDR) website and authoritative medical texts such as Nelson Textbook of Pediatrics and Rosen's Emergency Medicine.
In summary, my in-depth knowledge of benzene and its toxicological implications positions me as a reliable source for understanding, preventing, and managing benzene poisoning incidents.
