Urban Cemeteries in Southern Brazil: An Analysis of Planimetric Variations, Vegetation Indices and Temperature

摘要

Urban cemeteries have the potential to negatively impact the quality of health of populations in their immediate vicinity.Thus,it becomes important to understand the factors influencing the potential to disperse contamination.This study examined the altimetry,Normalized Difference Vegetation Index(NDVI)and Land Surface Temperature(LST)in five urban cemeteries in the City of Passo Fundo/RS,in the south of Brazil,and the possible potential for the proliferation of contaminating agents present in these cemetery spaces in relation to a radius of 300 meters(m).The methodologies used Landsat 8 satellite images to sample the altimetry,NDVI and LST,applied to a regression model,to analyze the dispersion factors of the correlation of collected data.The results showed a trend of contamination of the environment by urban cemeteries in Passo Fundo,in the regions with the highest population density and the lowest vegetative cover.