Banca de DEFESA: GUSTAVO DA SILVA FLEXA

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : GUSTAVO DA SILVA FLEXA
DATE: 29/11/2021
TIME: 11:00
LOCAL: https://meet.google.com/tbx-kdnm-ixx
TITLE:

INFLUENCE OF THE RIVERSIDE COMMUNITY ON WATER QUALITY IN A RIVER IN THE BRAZILIAN AMAZON

 

KEY WORDS:

Brazilian Amazon. Environmental changes. Riverside. Physical and chemical variables.

 

PAGES: 25
BIG AREA: Outra
AREA: Multidisciplinar
SUMMARY:

The decrease in the water quality of rivers in the Amazon is notorious due to anthropogenic factors associated with the release of effluent into the water. In this perspective, this study aimed to evaluate the water quality of the Pará do Uruará River bordered by a riverside community, as an investigation of possible changes in water quality due to the discharge of domestic and sanitary wastewater, fires and suppression of trees along the river. The study area is the surface water around the District of Santa Maria do Uruará (west of Pará), in the municipality of Prainha. Nine sampling points were defined in a 4 km stretch, distributed in sampling units classified as upstream (P3), intermediate (P2) and downstream (P1), with an average equidistance of 2km between them. In each sampling unit, three collections were carried out in the cross section of Rio, with an average distance of 50 meters. The parameters evaluated were: temperature, pH, dissolved oxygen, total residue, biochemical oxygen demand, thermotolerant coliforms, total nitrogen, total phosphorus and turbidity. The evaluation of the results was carried out by descriptive statistical analysis and application of the Water Quality Index. In the results of the parameters, we observed better quality indices in the upstream when compared to the intermediate and downstream points, suggesting that the water quality is affected by anthropic actions in the district. Differences in water quality were also observed between the hydrological periods, as in the rainy season there was a greater dilution of the concentration of parameters and better water quality. It is suggested the need for mitigation actions that promote the environmental education of the population and implement measures to improve the drainage system and effluent treatment, aiming to avoid river contamination and ensure quality water resources.

BANKING MEMBERS:
Presidente - 2143922 - ISRAEL NUNES HENRIQUE
Interno - 2143267 - JOSE MAX BARBOSA DE OLIVEIRA JUNIOR
Externa à Instituição - LENIZE BATISTA CALVÃO - UNIFAP