For security reasons. Airlines weigh all the risks when transporting dangerous goods. Having free mercury on an airplane is dangerous for several reasons. First, it is the health of employees and passengers. Mercury actively evaporates from the surface of the drop, polluting the air around it. At an altitude of 12,000 km, in a confined space, exceeding the MPC for mercury can seriously damage human health. Secondly, mercury is capable of interacting with other metals to form alloys – amalgams. In turn, amalgam has completely different mechanical characteristics than the starting material. Therefore, mercury can serve as a source of premature fatigue of materials and, as a result, their incapacitation.
One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.