What Are the Dangers of Using Moth Balls?

Moth balls contain either naphthalene or paradichlorobenzene. These chemicals are toxic and if used incorrectly can harm people, animals and the environment. (See Reference 1)

Danger to Self

• Breathing the chemicals in moth balls can kill red blood cells and cause temporary hemolytic anemia. (See Reference 2) Some other potential effects include respiratory tract irritation, headache, nausea, vomiting, diarrhea, blood in the urine, jaundice, and kidney or liver damage. (See Reference 1)

Danger to Children

• Naphthalene inhaled from moth balls can reach the fetuses of pregnant women, causing hemolytic anemia. (See Reference 2) Children are particularly susceptible to naphthalene, and those exposed to clothing stored with moth balls have also been known to develop hemolytic anemia. (See Reference 3)

Danger to Animals

• If used outdoors, moth balls may be consumed by pets or other animals. Consumption can result in seizures, excitement of the central nervous system and liver damage. (See Reference 4)

Danger to Environment

• The chemicals in moth balls are highly toxic and do not break down easily in the environment. If moth balls are used outdoors, the chemicals can mix with ground water and will not be filtered out by water treatment plants. (See Reference 1)

Prevention

• Moth balls can be safe if used as directed. Limit moth ball exposure, and only use moth balls indoors in tightly sealed containers. Clean or air clothes thoroughly after moth ball use to ensure chemicals are no longer present in the fabric.