1.1. Research and significance of the subject
Impact of noise is a very wide range of environmental pollution, since the middle of the 20th century,
with the development of industrialized civilization; noise pollution has become increasingly serious.
Noise pollution belongs to physical pollution, with the resulting emergence of the sound source, sound
source to stop and disappear. Noise not only harmful to people's health, but also affects the way people work and live. The development of new energy not only in solar energy and wind energy projects on
traditional production competition.