Mercury can be found in a variety of non-laboratory items such as fluorescent light bulbs, thermometers, older pressure gauges, plumbing traps, manometers, barometer, thermostats, capacitors, and ...

In May 2007, the mercury level was found to be 1,230 parts per trillion. The source of the mercury was traced to the laboratory drains where, over the years, several thermometers had broken.

so a mercury thermometer is not useful in extremely cold weather. Mercury can have usefulness over alcohol in the laboratory if extremely hot things are being measured. The boiling point of ...