Banca de QUALIFICAÇÃO: CAMILLA SIQUEIRA DA FONSECA

Uma banca de QUALIFICAÇÃO de MESTRADO foi cadastrada pelo programa.
DISCENTE : CAMILLA SIQUEIRA DA FONSECA
DATA : 24/09/2018
HORA: 15:00
LOCAL: Sala de Reuniões, CB
TÍTULO:

ANALYSIS OF RISK OF WATER QUALITY AND ITS RELATIONSHIP WITH SANITARY INDICATORS IN RIO GRANDE DO NORTE RESERVOIRS - RN

PALAVRAS-CHAVES:

Semiarid; Ambiental degradation; Radioactivity; Metals

PÁGINAS: 52
GRANDE ÁREA: Outra
ÁREA: Ciências Ambientais
RESUMO:

The state of Rio Grande do Norte is located in the Brazilian semi-arid with more than 3.5 million inhabitants. Due to its environmental characteristics, it faces problems with water scarcity, aggravated in the last years due in part to the climatic changes represented in the last almost 10 years of extreme drought, the worst of the last 50 years. Therefore the few water resources available become strategic matter, both in terms of quantity and quality, so that they are conducive to human development. This scenario is aggravated when the quality of the water is affected due to the geological characteristics and anthropic activities developed in the region. In this sense, it is eminent that effective measures need to be implemented in a satisfactory way, encouraging the conservation of water bodies. The study sought to analyze human development factors that could influence the environmental vulnerability of the most representative water reservoirs in the state. To this end, a geospatial and satellite image analysis was carried out to map the changes in land use and occupation of the productive activities developed in the years 2008 and 2017 within an area of 5km in the reservoir environments. It was observed the absence of environmental control characterized by the invasion of these activities within the Environmental Protection Areas, increasing the polluting potential on the water resources, facts sustained with the documented physical-chemical and microbiological changes, demonstrating the environmental degradation of the reservoirs. This work will also aim to evaluate the risks to exposure to inhabitants of this region, comprising the years 2015 to 2017 for multitemporal analyzes, through environmental quality analysis considering the different environmental compartments and considering as the study axis the radioactivity and the occurrence of metals. For 2015, high levels of metals such as phosphorus, iron, aluminum, lead, chromium, nickel and zinc were observed in water and soil from the main reservoirs of the state. As well as high levels of radioactivity, in particular high levels of radon in the environmental samples. The results already obtained revealed inadequate water quality for human consumption, due to the substances of toxicological interest analyzed in this study.

MEMBROS DA BANCA:
Externo à Instituição - JEAN LEITE TAVARES - IFRN
Interno - 1298966 - RAQUEL FRANCO DE SOUZA
Interno - 1249023 - SEBASTIAO MILTON PINHEIRO DA SILVA