Answering your question about noise pollution! Excessive and annoying noises from industries, airplanes, traffickers and places where they work with chemicals, produce a negative effect on hearing health... they also harm your health again, causing respiratory agitation, increased blood pressure, this is one of the diseases that can be caused by sonic pollution, (Hyperacusis) I know... I explain to you that this disease causes disorders in the human being, restlessness, he does not feel well in any place where there is noise of any kind.
As far as technology is concerned, it is one of the most valuable tools that we have and
has changed our lifestyle, and exactly as you say about the valuable solutions offered to us in connection with the tests registered in Augsburg by the Environment Institute for the benefit of health and consumer protection, a 10 dB reduction is equivalent to a 50 percent reduction in noise, The new road surface is designed to absorb some of this noise, the symbol (DB) this symbol is a unit that is used where we can express what relationship there is between two sound pressure values, very soon I will be explaining a little of this, thank you very much for your comment and questions. Greetings @juanmolina