Is a broken thermometer poisonous?
Jan 09, 2025
Source: Cainiu Health
Dr. Ren Yi
Introduction
Mercury thermometers contain mercury, a highly toxic heavy metal. When a thermometer breaks, the mercury can spill out in the form of small beads, which can volatilize at room temperature and form mercury vapor. This vapor can enter the human body through the respiratory tract, causing poisoning symptoms such as dizziness, fatigue, insomnia, vivid dreams, coughing, and chest pain. If an electronic thermometer breaks, however, it does not pose a toxic hazard.
Under normal circumstances, if a mercury thermometer is broken, the mercury inside can be toxic as it volatilizes. However, if an electronic thermometer is broken, it is not toxic. If any abnormalities occur, timely medical attention is recommended. Detailed explanations are as follows:
A mercury thermometer contains mercury, which is a highly toxic heavy metal. When a thermometer breaks, the mercury may spill out in the form of small beads. At room temperature, mercury can easily volatilize into mercury vapor, which can enter the human body through the respiratory tract and cause poisoning symptoms such as dizziness, fatigue, insomnia, vivid dreams, coughing, and chest pain. Additionally, if mercury comes into direct contact with the skin, it may also be absorbed through the skin and pose a risk to health.
Broken electronic thermometers are generally non-toxic. Electronic thermometers measure temperature using temperature sensors and do not contain toxic substances like mercury. They are primarily composed of electronic components and a plastic casing. When broken, they typically do not release harmful substances and pose minimal risk to human health or the environment.
If a mercury thermometer is accidentally broken, immediate and proper cleanup measures should be taken to reduce the risk of mercury poisoning. Additionally, using non-mercury thermometers as an alternative can help avoid such risks.
