Estudo do impacto ambiental causado pelo aumento da poluição sonora em áreas próximas aos centros de lazer noturno na cidade de Santa Maria - RS

Abstract

In the urban centers there is occurrence of significant sound pollution that it occurs of several origins, such as: noise of traffic, noise of night atmospheres, industries, among others. ihe leisure activities, such as, bars, nightclubs, convenience stores in gas stations, among other, when they saw n points n they bring with itself a great flow of vehicles and of people in yours spill generating, consequently, an increase of the sound poiiution in your suburbs in public zona. To verify and to measure that pollution increment consists of the objective principal of that work. For the accomplishment of the research they were chosen 08 points, with base in the data of accusations and of complaints, relative to the sound pollution, on the part of the population. Measurements of levei of sound pressure were accomplished in days ot littie movement and in busy days, when the establishments, close the those points were open and closed, being measured Leq (A) for 20 minutes in every hour of 22:00 h to 05;00 h. it was ended that is happening a same environmental impact that the establishments possess project of acoustic isoiation for it they trame in the levels aiiowed by the effective legislation or, still, when they OOn't emit high music in your interior due to the occurrence of people's extemal noises and cars in residential area. Another fact that should be observed is that in ali those analyzed points, in the schedule of operation of the establishments, there is a superior sound ievei to the iimits stipuiated by NBR 10151 and tor the Code ot Postures of the Municipal district of Santa Maria and, also, it happens a sound infraction classified as serious in those places.