The goal of this thesis is to help to resolve the sonorous pollution produced by mototaxi in the city of Moyobamba, through appropriate actions. To obtain this goal it has appraised the urban sonorous pollution in areas of more mototaxi traffic. It has made a preliminary research about the consequences of that pollution on the mototaxi driver's auditory sense, since this people are more exposed to urban noise. In order to distinguish the effect of noise on the mototaxi driver's auditory sense, it has made, to parallel, a preliminary research on no mototaxi driver people. The end the report shows a plan to control the sonorous pollution, which it may be a environmental management instrument for the city government of Moyobamba. The initial hypothesis has been: "the sonorous pressure level produced by mototaxi exceed nearly 35 decibel on permissible exposure limit and cause permanent incre...