A broken thermometer may cause poisoning if it is not treated in time. Because the thermometer is liquid mercury, that is, mercury, it can evaporate into mercury vapor at room temperature, and this mercury vapor is very toxic after inhalation. Therefore, if the thermometer is broken, you need to deal with it as soon as possible, otherwise if the mercury beads fall on the ground will be scattered, not timely collection, cleaning, volatilization into the air, through the human respiratory tract into the nervous system, it will cause symptoms of poisoning, there will be dizziness, weakness, tremors of the limbs. If it accidentally touches the skin, it can also be absorbed into the body through the skin, damaging the brain, damaging the central nervous system, and even causing deformities in offspring, etc. Because the maximum permissible concentration of mercury in the air is 0.01mg/m^3, in general, the human body can cause poisoning in an environment where the concentration of mercury is 1.2-8.5mg/m^3. A mercury agent thermometer contains 1g of mercury, and when broken and dropped on the floor of a 15m^2 room, the concentration in the air can reach 22mg/m^3, a value that greatly exceeds the poisoning standard.