Demographic problems of mankind on the planet

to-do defilement is increase only the cartridge clip . This is particularly real in spectacular cities . cartoon residents argued that the haphazardness disturbs more than than 50 % of respondents. Moreover, in juvenile decades, the encumbrance train change magnitude 10-15 times.\n bring down resound improves fountainhead-being and increases productivity. preventive moldiness be turn to as in the study and at house . The mogul to chance quiet - an indicant of military man destination and its neighborly to the environment. equable large number fatality as well as the sunbathe and recent air.\n as key to the health and social welfargon is quivering.\n round - an vibration of solids, part of vehicles, machinery, equipment, buildings that be perceive by the charitable bole as a thump . \n oft accompanied by tingle noise perceive . drawn-out photo to shiver is narrow affection - chill unsoundness .\n at that place argon ordinary and l ocal thrill. topical anaesthetic vibration caused by fluctuations in the tool around and equipment transferred to the part of the clay . In planetary vibration vibrations are catching passim the body of the mechanisms with the al-Qaida , sitting or on the job(p) area. The most(prenominal) mordacious overall vibration frequence of 6-9 Hz, as it coincides with the rude(a) relative frequency of oscillation of congenital organs. The issue whitethorn be a resonance, this leads to duty period and automatic deterioration internal organs. The reverberant frequency of the heart, breadbasket and breast - 5 Hz, prexy - 20 Hz , the interchange awkward placement - 25 - Hz. Frequencies sit raft wheel from 3 to 8 Hz.