A broken thermometer should not be used to mop the floor with a mop. Since mops are fabric products, they are easily contaminated with mercury, causing long-term contamination of water sources. In addition to this mopping, it is also easy to make the mercury more fragmented and not easy to collect. If the mercury meter is broken and falls on the floor, never avoid direct contact with the mercury by hand, on the one hand, there may be a very small amount of mercury absorbed by the skin, on the other hand, there will also be allergic dermatitis. 1, turn off the heating device in the house, and then open the windows and doors for ventilation. 2, wear a mask and gloves, and then use a piece of paper or cotton swab to collect the scattered mercury beads into a container of water. The water container will be airtight, and for insurance purposes you can then wrap the bottle around the mouth with tape a few times, but remember that you need to label the container with the mercury inside and then hand it over to the environmental protection department for disposal.