Dissertação Mestrado Profissional em Tecnologias Ambientais
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Item Análise da qualidade de águas subterrâneas dos municípios de Maceió e Rio largo - AL(2024-10-30) Brandão, Iago Gabriel França; Freitas, Alan John Duarte de; http://lattes.cnpq.br/7222112856028905; Freitas, Johnnatan Duarte de; http://lattes.cnpq.br/4999402869058858; Cabral Júnior, Jório Bezerra; http://lattes.cnpq.br/7439808091974845; Cabral, Mirelle Márcio Santos; http://lattes.cnpq.br/7765541308045861It is essential to consider the importance of water, a vital resource for life on the planet, when addressing the conservation of its quality. The growing awareness of the health impacts resulting from exposure to a wide range of compounds has led to the strengthening of environmental regulations and policies, such as Ordinance GM/MS No. 888, of May 4, 2021. In recent years, the search for effective ways to reduce environmental impacts has become even greater, since the risk of contamination of water resources is an environmental concern with a major impact on public health. Therefore, the study aims to evaluate and characterize the quality of groundwater, determining some physical-chemical and microbiological parameters. Five wells were selected, where the variables of pH, turbidity, electrical conductivity, color, temperature, alkalinity, total hardness, calcium, magnesium, chlorides, acidity, total coliforms and thermotolerant coliforms were analyzed. Microbiological analyses were performed to assess the presence or absence of total and thermotolerant coliforms. Subsequently, field and laboratory tests were carried out. The results obtained during the tests indicated that the analyzed waters require different treatments, inherent to their specific quality. Well 02 meets all the standards of Ordinance No. GM/MS 888/2021, however, it operated for only 3 months during the year. Samples from wells 01, 03, and 04 meet the various aspects of the ordinance, requiring only chlorine treatability to meet all potability regulations. Well 05 does not meet all the standards of Ordinance No. GM/MS 888/2021, demonstrating samples that exceeded the VMP for turbidity, color, total hardness, and chlorides.Item Monitoramento da qualidade da água da Laguna Mundaú em pontos estratégicos no município de Coqueiro Sêco-AL(INSTITUTO FEDERAL DE ALAGOAS - Ifal, 2025-12-28) Felix, Naiara da Silva Santos; Freitas, Alan John Duarte de; https://orcid.org/0000-0001-9673-7338; http://lattes.cnpq.br/7222112856028905; Freitas, Johnnatan Duarte de; https://orcid.org/0000-0002-6977-3322; http://lattes.cnpq.br/4999402869058858; Rapôso, Áurea Luiza Quixabeira Rosa e Silva; https://orcid.org/0000-0002-2699-9778; http://lattes.cnpq.br/7600867517446003; Souza, Ronny Francisco Marques de; https://orcid.org/0000-0002-8943-0247; http://lattes.cnpq.br/7651317326903869; Vargas, Jorge Andrés Mora; https://orcid.org/0000-0001-9853-7081; http://lattes.cnpq.br/5985774242540231Water is an essential resource for the maintenance of life and the stability of ecosystems, and its preservation and quality are fundamental factors for environmental sustainability. In addition to acting as a vector for infectious diseases, water also serves as an important indicator of contemporary environmental impacts. This study aimed to evaluate the water quality of the Mundaú Lagoon, located among the municipalities of Maceió, Santa Luzia do Norte and Coqueiro Seco, which is part of the Mundaú-Manguaba Estuarine-Lagoon Complex (CELMM). The study area has attracted increasing scientific interest due to the presence of rock salt (halite) mines, which provide raw material for the production of caustic soda, hydrochloric acid, sodium bicarbonate, soap, detergents, cleaning products, and pharmaceuticals. The mining company responsible for this activity drilled wells and injected water into the salt layer, producing brine that was then pumped to the surface. This process, carried out for more than four decades, caused structural and physicochemical alterations in the subsurface environment. The contact between the lagoon water and saline material from mineral deposits can significantly alter its natural quality pattern, increasing salinity and affecting the aquatic dynamics of the ecosystem. To assess these impacts, a monthly monitoring program was conducted, comparing the results with the standards established by the brazilian Ministry of Health (MS) and the brazilian National Environmental Council (CONAMA). Physical parameters (pH, turbidity, electrical conductivity, color, dissolved oxygen, and temperature), chemical parameters (total hardness, calcium, magnesium, alkalinity, chlorides, and acidity), and microbiological parameters (total and thermotolerant coliforms) were analyzed at five sampling points in the municipality of Coqueiro Seco, approximately 21.4 km from Maceió. Results showed that some points, particularly Points 4 and 5, exhibited elevated turbidity, conductivity, and salinity values, suggesting anthropogenic influence and possible mineral pollution. Microbiological analyses indicated high concentrations of thermotolerant coliforms, classifying the water as unsuitable for domestic and recreational use due to the potential risk of waterborne diseases transmission. Overall, the results demonstrate that anthropogenic activities in the region have significantly contributed to the degradation and decline in the surface water quality of the Mundaú Lagoon.Item Monitoramento e quantificação de agroquímicos na água de poços de abastecimento urbano do município de Maceió (AL)(Instituto Federal de Educação Ciência e Tecnologia de Alagoas, 2022-07-29) Silva, José Robério Cavalcante da; Caldas, Celso Silva; http://lattes.cnpq.br/1770252259613367; Freitas, Johnnatan Duarte de; http://lattes.cnpq.br/4999402869058858; Calheiros, Altanys Silva; http://lattes.cnpq.br/9353777923030637; Simões Neto, Djalma Euzébio; http://lattes.cnpq.br/0915213331108182In recent decades, Brazilian agribusiness has grown positively, placing the country as one of the largest producers and exporters of food, resulting in a potential user of pesticides (agrochemicals) in vegetable crops, thereby reducing losses. However, in terms of health and food safety, there are no significant benefits in relation to the economic sector in Brazil, since poisoning by agrochemicals can be directly or indirectly, leaving the population exposed to acute and chronic diseases. The risk of contamination of these compounds in water resources is also an environmental and public health concern. In this context, the study aimed to estimate the level of contamination of water from domestic supply wells by agrochemicals applied in an urban area in the metropolitan region of the city of Maceió-AL, whose analyzes were carried out according to criteria proposed by the Environmental Protection Agency. - EPA, using liquid and gas chromatography techniques coupled with mass spectrometry. As a result, it was observed that during this study the 27 active principles evaluated were below the limits allowed by Brazilian legislation. As for the risk of water contamination, even with results below the recommended limits, it is recommended that there is a need to implement environmental monitoring programs and measures aimed at protecting public health, since agrochemical parameters are currently established in the evaluations the potability of water for human consumption. The treatment and control of water are, for vital reasons, ways of mitigating the spread of diseases or complications, satisfying the quality standards established for the distribution of water for human consumption.