VEGETAÇÃO E CONFORTO TÉRMICO EM ESPAÇOS URBANOS ABERTOS

ESTUDO DE CASO EM FORTALEZA-CE

Abstract

According to data from the World Health Organization (WHO), the estimated minimum amount of green area per inhabitant is 12m², in the case of the city of Fortaleza this rate is 8m² per inhabitant. Located in the Northeast region of the State of Ceará, at latitude 3° 47' 24.36” S and longitude 38° 31' 8.21” W and average altitude of 16 meters, Fortaleza has a tropical climate with hot land and little rain, large dunes and temperature average of 27°C. Considering the importance of urban afforestation and the characteristics of the city of Fortaleza, the aim of this study is to evaluate the influence of green areas on acoustic, thermal and lighting comfort in two different squares, the first with significant afforestation and the second without large afforestation. postage. Through monitoring with a sound intensity meter (decibelmeter) at different points of the two evaluated squares, in line with the criteria established by NBR 10151 for mixed areas, it was possible to perceive the influence of vegetation on attenuation of temperature and noise. An average noise reduction of 6 dB was observed in the interior of the square with significant afforestation in relation to the surrounding space, confirming the initial hypothesis: "Does afforestation, in addition to promoting an urban environment with better air quality and protection, thermal, also ease the influence of noise levels according to the density and size of your crowns?”. The barrier formed by afforestation achieved satisfactory performance with regard to urban noise control; this reduction has a direct influence on the population's well-being, contributing to environmental comfort.