Calhau River: physical-chemical diagnosis of its waters in its upper, middle and lower courses.

Abstract

Environmental monitoring is an important strategic resource for the maintenance of natural resources, environmental planning and the promotion of public policies for a better understanding of the relationship between the growth of urban centers and the environment. Notably, there are several cases of water bodies that end up directly impacted by the lack of urban planning, and history tells several cases of large epidemics caused by the contamination of water bodies. The rapid urban expansion of São Luís follows nonsense with the planning of effluent collection networks, drainage gutters and other civil construction artifices to intercept negative contributions in its water bodies. For the present work, the study area was delimited to the Calhau River basin, from its sources in the Vinhais and Alto do Calhau neighborhoods, through the meeting of waters near Avenida dos Holandeses to the river mouth in the Avenida Litorânea region, summer resort and frequently visited by the population. Multiparameter monitoring being carried out at different points of the river for its characterization and environmental diagnosis between January and August 2021.