Banca de QUALIFICAÇÃO: REINALDO BRANDI ABREU BIFANO

Uma banca de QUALIFICAÇÃO de MESTRADO foi cadastrada pelo programa.
DISCENTE : REINALDO BRANDI ABREU BIFANO
DATA : 23/08/2019
HORA: 08:30
LOCAL: Campus Sosígenes Costa - Sala Taperapuã 2
TÍTULO:

"ANALYSIS OF ENVIRONMENTAL IMPACT BIOINDICATORS AS A WATER QUALITY ASSESSMENT TOOL IN THE SOUTH OF BAHIA".

PALAVRAS-CHAVES:

Hydrographic Basin, Anthropogenic Actions, Physicochemical parameters, Biological parameters.

PÁGINAS: 55
GRANDE ÁREA: Outra
ÁREA: Ciências Ambientais
RESUMO:

In times of technological development, water must be used in a rational way to preserve its quality, since the environmental impacts affect the diversity of the biota, altering the sanitary conditions and consequently throwing matter or energy in disagreement with parameters of environmental quality, resulting directly or indirectly in damages to the health, safety and wellbeing of the populations. In this way, the physical, chemical and biological characteristics are indicators of the quality of water bodies, therefore it is necessary to monitor them to obtain information related to environmental conditions, serving as an aid for analysis and search for mitigating actions for the conservation and sustainable use of waters. The present study aims to evaluate the quality of water bodies (Rio Jardim and Mutari) in the extreme south of Bahia by physico-chemical and biological parameters. For the analysis of the data, CONAMA Resolution No. 357 was used. Some of the parameters were measured directly in situ with the help of the HANNA HI 9828 instruments multi-parameter probe for the determination of the parameters of dissolved oxygen, pH, Total Dissolved Solids ), conductivity, temperature, turbidity and salinity. Chemical analyzes were carried out at the Chemistry Laboratories of the Federal Institute of Science and Technology of Bahia (IFBA - Campus Porto Seguro). The methodologies used for the water analysis were those proposed by the Standard Methods for the Examination of Water and Wastewater (AWWA, APHA, WCI, 2005). Considering all the results obtained from the water compartment of the two rivers it is noted that there were some variables that presented results in disagreement with the reference values proposed by CONAMA Resolution nº 357/2005. The variables OD, pH, total phosphorus and BOD were sometimes influenced by natural characteristics, sometimes suffered some kind of anthropic contamination, since these rivers present characteristics such as the presence of erosions, absence of ciliary forest in some sections, siltation that can often occur. be caused by animal trampling and inappropriate land use and occupation by residents near rivers. It is recommended a more in-depth analysis on the quality of watercourses and also collections made in a larger space of time in order to understand the influence of seasonality and temporal factors on water quality.

MEMBROS DA BANCA:
Presidente - 962.287.925-04 - ALLISON GONÇALVES SILVA - IFBA
Interno - 1563747 - MARCOS EDUARDO CORDEIRO BERNARDES
Interno - 1956163 - NADSON RESSYE SIMOES DA SILVA