Metodologia para avaliação de riscos ambientais em áreas urbanas da região metropolitana de Goiânia-GO

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Universidade Federal de Goiás


This paper aims to propose a new method for assessing environmental risks based on the Ecological Risk Analysis method proposed by Faria (1983). Starting from the main scientific methods used for environmental risk assessment, methods of urban planning and environmental sustainability indicators used in models of environmental risk assessment, the new method is tested in the area around Mingau creek, in the neighborhood Parque Amazônia, in Goiania, Goiás, where it had been applied the method proposed by Faria (1983) and also in the vicinity of Santo Antonio creek, located in Aparecida de Goiânia, Goiás. This method consists in obtaining data from the premise socioeconomic and the physical environment of the study site, determining a rank for each risk factor. Subsequently, these data are checked with the physical medium through an array that uses the aggregate sum of the levels divided by two, rounded statistically when necessary. The results show, generally, the interrelation between the environment factors the physical and socioeconomic environment and reveal in a clear, objective and direct that the environmental risks of the physical environment are interrelated and submitted to each factor inserted in the premise socio-environmental, particularly the direct effects that social factors on the print environment, the deemed to be interdependent. In the method de Faria (1983) each factor is naturally hierarchical individually and that the intersection matrix of the aggregation is by obtaining the intensity of damage indicators, which are the anthropic factors interfering on the natural environment, with indicators sensitivity of damage, that for each natural factor is adopted and an indicator refers to the ability of resistance and resilience of the physical environment. So, are crossed, the risk matrix, the intensity of damage with a sensitivity of damage and gives the level of ecological risk for each natural factor, differently. In this new method more directly, we obtain the level of risk to each factor, whether physical or socioeconomic and then the results are intercepted in a single array of aggregation, which results in the environmental risk of the interrelationship of factors jointly allowing demonstrate a more comprehensive and systemic results of environmental risk assessment.



ASSUNÇÃO, Simone Gonçalves Sales. Metodologia para avaliação de riscos ambientais em áreas urbanas da região metropolitana de Goiânia-GO. 2012. 232 f. Tese (Doutorado em Ciências Ambientais) - Universidade Federal de Goiás, Goiânia, 2012.