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Can naphthalene balls kill humans?

Author

James Bradley

Updated on June 23, 2026

The main component of mothballs is naphthalene, an aromatic hydrocarbon, which can cause all sorts of neurological problems, as well as hemolytic anemia, kidney and liver damage and cataracts. Remember, this is a poison that is meant to kill insects, and humans or other mammals are not immune to its effects.

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Consequently, can naphthalene balls cause death?

The fatal dose for naphthalene in humans is unknown, but as little as one mothball can result in toxicity in children. Deaths have been reported the following ingestion of naphthalene balls. Naphthalene is erratically absorbed when ingested in the pediatric population.

Additionally, is inhaling naphthalene dangerous? Inhalation of naphthalene may cause skin and eye irritation; gastrointestinal symptoms, such as nausea, vomiting, abdominal cramps, and diarrhea; neurologic symptoms, such as confusion, excitement, and convulsions; renal problems, such as acute renal shutdown; and hematologic features, such as icterus and severe anemia

Just so, is naphthalene balls poisonous to humans?

The chemicals in mothballs are toxic to humans and pets. People are exposed to the chemicals in mothballs by inhaling the fumes. If you smell mothballs, you are being exposed to these chemicals. Extended exposure to mothballs can also cause liver and kidney damage.

What happens if we inhale naphthalene balls?

Yes, sniffing naphthalene balls is dangerous to health. When napthalene gas is smelled, the body breaks it down into other chemicals that react with cells in our body and also damage several tissues. Moreover, if clothing stored in napthalene balls are worn as such without washing them, than it may even cause anaemia.

Related Question Answers

Is smelling naphthalene balls harmful?

An active ingredient in some mothballs is naphthalene. If swallowed, naphthalene can damage red blood cells, causing kidney damage and many other problems. It can affect how blood carries oxygen to the heart, brain, and other organs. It can also cause nausea, vomiting, abdominal pain, seizures and coma.

Are naphthalene balls safe?

Moth balls containing naphthalene are generally safe for use around adults and older children, if used correctly and in the right quantity. It can be very dangerous if moth balls are eaten, so it is especially important that mothballs are stored well out of the reach of small children and pets.

Can mothballs give you cancer?

Researchers warn of mothball cancer risk. Chemicals in mothballs and air fresheners may increase the risk of cancer, scientists have discovered. Naphthalene and para-dichlorobenzene are recognised pollutants that can cause cancer in rodents. Experts believe they are also likely to be harmful to humans.

Is it safe to have mothballs in the house?

Mothballs should not be used inside attics, crawl spaces, gardens, trash cans or vehicles. "Often, mothballs are used in these locations to control pests other than clothes moths," Stone said. "A relatively common mistake is placing mothballs in an attic to repel squirrels.

Are moth balls toxic to breathe?

Moth balls contain a toxic chemical, either naphthalene or paradichlorobenzene. Both become a gas when exposed to air and cause that pungent moth ball smell. These gases are irritating to the eyes and lungs and may cause headache, dizziness and nausea. They are both suspected of causing cancer.

What are moth balls good for?

Mothballs are pesticides that slowly release a gas vapor to kill and repel moths (and their larvae) and other insects. Mothballs are also used to repel snakes, mice, and other animals, though this use is not recommended and can be harmful to pets, children, and the environment.

What is naphthalene for?

Naphthalene is an aromatic hydrocarbon found in coal tar or crude oil. Naphthalene is used in the manufacture of plastics, resins, fuels, and dyes. It is also used as a fumigant insecticide that works by turning directly from a solid into a toxic vapor. This process is called sublimation.

Is smelling naphthalene balls harmful in pregnancy?

Usually it's such a small amount that you don't need to worry, but it's still a good idea to avoid some toxic products while you're pregnant. Mothballs contain naphthalene, a chemical known to cause headaches, nausea, dizziness and vomiting.

Why is naphthalene used as moth balls?

They come in a solid form that slowly gives off a toxic gas that kills clothes moths and other insects. Mothballs in the U.S. contain very high concentrations of either naphthalene or paradichlorobenzene as active ingredients. The trapped fumes build up and kill any clothes moths inside.

What is Naphthalene found in?

Naphthalene is made from crude oil or coal tar. It is also produced when things burn, so naphthalene is found in cigarette smoke, car exhaust, and smoke from forest fires. It is used as an insecticide and pest repellent. Naphthalene was first registered as a pesticide in the United States in 1948.

Why do moths eat clothes?

Why Do Moths Eat Clothes? Moth larvae have a fairly specific diet, and so female moths typically pick clothes made from animal fibers such as silk, wool, cashmere, angora or fur, materials that contain keratin. Keratin is composed of fibrous structural proteins and can also be found in our skin and hair .

Can mothballs kill rats?

A rodenticide is a chemical used to kill rats and mice. Mothballs are meant to kill moths, eggs and larvae, but are also used to keep rats, mice and squirrels away. Those containing paradichlorobenzene are safer than mothballs containing naphthalene. As little as one mothball can be toxic when swallowed.

Do mothballs keep mosquitoes away?

Can I use mothballs to repel insects or animals? The label of any pesticide product, including mothballs, tells you exactly where and how a product is supposed to be used. Using the product in any other way could put you and others at risk. Besides, they have little or no effect as repellents.

Are naphthalene balls flammable?

Naphthalene is a COMBUSTIBLE SOLID. It may also be transported in a “molten” or heated form. The vapor given off when Naphthalene is heated is FLAMMABLE and a DANGEROUS FIRE HAZARD. Use dry chemical, CO2, water spray or alcohol-resistant foam as extinguishing agents.

Do moth balls work outside?

The fumes from mothballs kill clothes moths, their eggs and larvae that eat natural fibers in indoor storage areas, such as closets, attics and basements. Mothballs are not intended to be used outdoors. The active ingredients can contaminate water and soil, harm wildlife, and contribute to air pollution.

How long does it take for mothballs to evaporate?

Naphthalene in water is destroyed by bacteria or evaporates into the air. Most naphthalene will be gone from water in rivers or lakes within 2 weeks.

Can you eat mothballs?

When you smell mothballs, you are inhaling the insecticide. Mothballs can also be dangerous if they are chewed or eaten. Children, pets and wildlife may mistake them for food or candy and eat them. One mothball can cause serious harm if eaten by a small child.

What are the side effects of naphthalene?

Some of the symptoms that occur with hemolytic anemia are fatigue, lack of appetite, restlessness, and a pale appearance to your skin. Exposure to a large amount of naphthalene, such as by eating mothballs, may cause nausea, vomiting, diarrhea, blood in the urine, and a yellow color to the skin.

Is naphthalene banned?

Sale of naphthalene has been banned in the EU and New Zealand. Inhalation of naphthalene vapours can cause toxic reactions and containment in a device that prevents ingestion will not prevent this. There are safer alternatives to naphthalene including camphor and 1,4-dichlorobenzene.