These lamps are a great source of energy efficient lighting, but they need to be handled carefully so as not to break them. When broken, mercury is released to the air. The most common mercury containing household item. Replace it before it breaks. Even small spills from thermometers need to be properly cleaned up.
Digital thermometers work just as well.
Often found in the medicine cabinet for cuts and scrapes. Both contain mercury. Use substitute antibacterial ointments. Some gauges contain mercury, although the digital types do not.