Impactos ambientais em um trecho do Rio Cuiabá (Ponte Nova - Sérgio Motta)

Abstract

The process of urbanization in Brazil was so intense and fast , had a predominantly agrarian human activities driven by socioeconomic factors responsible for the degradation of ecological services ( DEAK ; SCHIFFER , 2004) . According to Brandão (2003) Brazil has undergone profound changes, from the 1940s, as it became an agricultural society for an urban-industrial, consolidating itself in the late 1960s. As (Santos 1994) in the period 1940- 1991, there is an inversion over the residence of the Brazilian population. In the 1940s, the urbanization rate was 26.35%, already in 1980 was 68.86 %. In only forty years, the total population triples, and only the urban population has multiplied by seven and a half times. In 1991, the urban population is over 77 %, and the total population is almost equal to 1980 . Second (Azevedo 1957) due to steam navigation on the river Cuiabá a significant increase of the population, expanding urban area in the port. The cities of Cuiabá and Lowland Great deposited daily about 20 tons of solid waste (household waste) and 400 liters of domestic and industrial sewage in the river Cuiabá (Wolmuth; Diniz, 2005). Currently about 31 % of households are connected to Cuiaba sanitation systems , but only 14 % of the sewage is treated (Safford , 2009) thus the elaboration of this work is justified before a shortage in finding contributions addressing the issue in urban rivers, major cities, mostly in Cuiaba river where the research was carried . The research aims formatting and explicit information that may help sensitize the society about the importance of a healthy environment and maintained.